Documentation

REST API

How a platform builds on the same data your assistant searches: 40 endpoints over prior-art retrieval, patent space, and §112 claim analysis. JSON in, JSON out, one bearer token.

Base URL

https://mcp.antecedint.com/api/v1

No key yet? Sign in and one is issued immediately, free to start, or read the three-step start first. Examples below assume these two variables.

export BASE="https://mcp.antecedint.com/api/v1"
export ANTECEDINT_API_KEY="ak_live_..."

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All endpoints

The whole surface. Free endpoints cost nothing against your quota beyond the request itself.

EndpointDoesCost
POST /contextRoute a question to the walks that answer it and return documentsMetered
GET /gardensEvery garden and every question, with what each holds and what is being builtFree
GET /gardens/:idOne data gardenFree
POST /prior-artSearch 10.5M US patents for prior art against a claimMetered
POST /prior-art/claimsFetch claim text and abstracts for specific applicationsMetered
GET /patent-map/patent/:appNumPatent position and its nearest semantic neighboursMetered
GET /patent-map/patent/:appNum/citationsCited prior art resolved to patent-space positionsMetered
POST /patent-map/locateLocate free text or an application in patent spaceMetered
GET /patent-map/whitespaceRanked gaps in patent spaceFree
GET /patent-map/pointsSampled background point cloudMetered
POST /feedbackReport a data errorFree
POST /feedback/searchJudge a search's results and suggest better onesFree
GET /feedbackList data error reportsFree
POST /claim-validation/antecedent-basisCheck a draft claim set for antecedent-basis defectsFree
GET /claim-validation/antecedent-basis/:appNumCheck the filed claims of an applicationMetered
POST /claim-validation/supportMap claim terms to their specification supportMetered
GET /claim-validation/support/:appNumSupport map for a filed application and its parentsMetered
POST /warmupStart the inference hub ahead of a searchFree
GET /warmupWhether the inference hub is warmFree
GET /usageWhat this key has spent and has left, and when each limit resetsFree
POST /jobs/readRead a background job's status and resultFree
GET /jobsList this key's recent background jobsFree
GET /areasList the areas of lawFree
GET /capabilitiesList the capabilities in an area, garden or pathFree
GET /capabilities/:idDescribe one capabilityFree
GET /statusUsage and model warmth for this keyFree
POST /statusStart the search models, then report usage and warmthFree
GET /referencesList the dated reference materialFree
GET /references/readRead one reference by uriFree
GET /patent-intel/cpc/:codeCPC symbol with its art-unit distribution and childrenMetered
GET /patent-intel/classification/:numberCPC classification for a publication or application numberMetered
GET /patent-intel/art-unit/:artUnitArt-unit profile, statistics and examiner rosterMetered
GET /patent-intel/examinersSearch examiners by name or art unitMetered
GET /patent-intel/examiner/:examinerExaminer statistics and behavioural profileMetered
GET /guidance/mpep/:sectionIdOne MPEP section with its rules and required examiner actionsMetered
GET /guidance/epo/:sectionIdOne EPO Guidelines section with its rules and citationsMetered
GET /guidance/form-paragraph/:codeOne office-action form paragraph, with its statute and MPEP sectionMetered
GET /guidance/form-paragraphsForm paragraphs filtered by rejection type or MPEP sectionMetered
GET /guidance/graph/:nodeIdOne-hop cross-references into and out of a guidance sectionMetered
GET /guidance/design-code/:codeOne USPTO design search codeMetered

Context

One question in; the data gardens that hold its answer run and return documents with their measured limits.

Route a question to the walks that answer it and return documents

Metered MCP tool ask
This endpoint is beta. Its shape can change without a version bump.

Route a question to the walks that answer it and return their documents.

Free and open. Over MCP on your own key the search has no daily limit, only the plan's per-minute ceiling. Over REST, the plan's daily allowance applies (200 on the free plan), and without a key a caller gets 25 free searches a day from one address. free_search in the answer says how many are left and when they reset; it is absent when there is no daily limit. The free search includes the dig: the independent claims of the top hits and the passage closest to each element. rerank: true makes it a paid search (10 credits, a key required) that does not use the free allowance. MCP hosts can add the same search with no sign-in at https://mcp.antecedint.com/api/v1/mcp/open.

GET /gardens lists the gardens (the tuned data) and the questions (the walks over them). This call reads the question for routing signals, runs every question weighted at or above 0.5 (at most three) in parallel, and answers with one entry in answers[] per question: the gardens it walked, its documents, count and candidates, notes on what it did, its timings, and error when it could not run. gardens{} carries every garden any answer walked, keyed by id and stated once: what it holds (holds, each figure with n, date and source), what is being built on it (roadmap), and what serves it today (served_by). routing says how the questions were chosen (signal, pinned or fallback), with the signals that fired and the facts read out of the text. not_covered lists questions left out and why, and roadmap items that bear on the question, such as non-patent literature not being indexed.

A walk over an index garden states its time policy. asOf is the day art must predate, strictly: the store admits rows dated before it and refuses rows with no date, and the answer reports time_policy (the day, the column it was decided on, whether the store applied it and the bound it applied) with time_filter_violations (returned documents dated on or after the day; must be 0) and each document's decided_on and time_check. excludeFamilyOf drops the application's family and the answer reports exclusion with family_leaks, same_app_hits and no_family_id_hits (rows that carry no family id and so could not be excluded by it), with each document's exclusion_check.

Walks that need the encoder are skipped when it is cold and waitForHub is not set, with a HUB_COLD error carrying the get_status warm-up remedy and the exact re-call; the health check that decided this has already started the instance.

Documents share one shape across gardens: id, type and unit, title, snippet, score and score_kind, source (the garden, the question that walked it, and the primitive tool that reads it in full), country, reachable, filing_date, url and ref (the native keys a follow-up call needs). Snippets are clipped to the budget and never reordered; truncated says when an answer was cut.

Body

NameTypeDescription
question reqstring, 8–20000 charsThe question as asked, or claim text. Claim text routes to prior_art_claim; a numbered claim set with dependencies also routes to claim_defects.
questions string[], max 4Question types from GET /gardens. Pins the set and skips routing; signals still run so the pinned walks get the facts read from the text.
maxDocuments integer, 1–100Documents per answer. Defaults to 10.
budget integer, 2000–120000Character budget for the documents across every answer, split by routing weight. Documents are clipped from the tail, never reordered. Defaults to 24000.
snippets booleanfalse returns ids, refs, scores and dates only, which is what an evaluation or a dedup pass reads. Defaults to true.
asOf string, ^\d{4}(-\d{2}(-\d{2})?)?$The day art must predate, strictly (YYYY, YYYY-MM or YYYY-MM-DD; a year or a month resolves to its first day). Pass the priority date of the claim being searched.
filedBefore string, ^\d{4}(-\d{2}(-\d{2})?)?$The older name for asOf, honoured when asOf is absent.
filedAfter string, ^\d{4}(-\d{2}(-\d{2})?)?$Lower date bound for the index walks.
excludeFamilyOf string, ^\d{7,12}$US application number whose patent family the index walks drop.
cpc3 string[], max 20Restrict the index walks to these CPC subclasses. Excludes unclassified references, so leave it unset on a first pass.
rerank booleanRun the ColBERT reranker in prior_art_claim. Paid: 10 credits, and it needs a key. Slower, and loads a second model on a cold hub. Defaults to false.
dig booleanprior_art_claim reads the independent claims of the top three hits and, for the top two, the passage closest to each element of the claim, returned in answers[i].dig. false skips it. Defaults to true.
hyde booleanForce the query rewrite into patent language on or off; unset lets the walk decide (on for a short description, off for a claim).
waitForHub booleanWait for a cold encoder instead of skipping the index walks; about 75 s on the evaluation tier. Defaults to false.

Responses

200{ question, routing, answers[], gardens{}, not_covered[], credits, budget, timings, request_id, timestamp }. routing.via is signal, pinned or fallback. Each entry in answers[] carries question_type, gardens_walked[], documents[], count, candidates, truncated, notes[], timings and error (null, or a HUB_COLD payload with a remedy); over an index garden also time_policy, time_filter_violations, undated_returned and exclusion. Each entry in gardens{} carries served_by, pool, units, holds[], roadmap[], notes[] and walked_by[].
400VALIDATION_ERRORquestion is missing or out of range, or a parameter failed its rule.
400UNKNOWN_QUESTIONA pinned type is not registered; known lists the types.
401KEY_REQUIREDrerank was asked for without a key.
429FREE_SEARCH_LIMITThe day's free searches are used, per key, per address, or (without a key) across every caller, which free_search.per names as key, ip or all; free_search.resetAt says when they come back.
429USAGE_LIMIT_EXCEEDEDA paid (reranked) search found the key's credit or request ceiling reached.
500INTERNAL_ERRORRouting itself failed. A walk that fails answers 200 with error on its own answer.
Request
curl -sS "$BASE/context" \
  -H "Authorization: Bearer $ANTECEDINT_API_KEY" \
  -H 'Content-Type: application/json' \
  -d '{"question":"What does MPEP 2106 require an examiner to establish before rejecting a claim under 101?","maxDocuments":5}'

This one spends real model inference on each call. Run it in the sandbox →

Response (abridged)
{
  "question": "What does MPEP 2106 require an examiner to establish before rejecting a claim under 101?",
  "routing": {
    "via": "signal",
    "questions": [{ "type": "examination_rule", "weight": 1, "reason": "mpep_section: MPEP 2106", "primary": true }],
    "signals": [{ "name": "mpep_section", "evidence": "MPEP 2106" }],
    "facts": { "mpepSection": "2106", "rejectionType": "101" }
  },
  "answers": [{
    "question_type": "examination_rule",
    "question": "Which rule obliges this office action, here and at the EPO?",
    "gardens_walked": ["ip.mpep-epo"],
    "documents": [{ "id": "mpep-2106", "type": "section", "unit": "section", "title": "Patent Subject Matter Eligibility", "snippet": "…", "source": { "garden": "ip.mpep-epo", "question_type": "examination_rule", "tool": "get_mpep_section" } }],
    "count": 1,
    "error": null
  }],
  "gardens": {
    "ip.mpep-epo": {
      "id": "ip.mpep-epo", "kind": "text", "title": "MPEP and EPO Guidelines",
      "served_by": { "kind": "production", "engine": "guidance", "store": "firestore", "dataset": "guidance" },
      "holds": [{ "fact": "MPEP sections", "kind": "count", "value": 1873, "n": 1873, "measured": "2026-09-08", "source": "loader manifest, scripts/ops/guidance/plan.js" }],
      "roadmap": [], "walked_by": ["examination_rule"]
    }
  },
  "not_covered": [],
  "credits": { "charged": 10, "by_question": { "examination_rule": 1 } },
  "timestamp": "2026-09-16T09:10:04.118Z"
}

Data gardens

The garden registry as data: what each holds, counted and dated, and what is being built on it.

Every garden and every question, with what each holds and what is being built

FreeCached MCP tool list_gardens
This endpoint is beta. Its shape can change without a version bump.

Every garden and every question Ask Antecedint can route to.

A garden entry carries id, corpus, kind (index, graph, map, table or text), title, description, tuned_for, units, the tools that read it, served_by (what answers for it today: a production store, or a program garden version with its garden_version_id, spec_hash and pool_id), pool, holds, roadmap, notes and walked_by (the question types over it). A hold is a measurement: fact, kind (count, rate or score), value, n, measured and source, with population on a score. A count is the garden's size on that date; a rate or a score was measured on the named population and is not a measurement of the live tool. A garden with no score hold has not been benchmarked, and the absence is the statement.

A question entry carries type, corpus, question, title, routingDescription, the gardens it walks, scope, hub, cost, timeoutMs, checks (the program check tools whose semantics the walk implements) and examples.

planned_areas names the corpora with no garden yet, with their phase.

Query parameters

NameTypeDescription
corpus string, one of ip, prosecution, guidanceOnly gardens and questions over this corpus.

Responses

200{ gardens[], questions[], count, planned_areas[], timestamp }. count is the number of gardens.
400VALIDATION_ERRORcorpus is not a known key.
Request
curl -sS "$BASE/gardens?corpus=patents" \
  -H "Authorization: Bearer $ANTECEDINT_API_KEY"
Load your key above to run this.

One data garden

FreeCached MCP tool list_gardens
This endpoint is beta. Its shape can change without a version bump.

One garden by id, in the same shape as the list, with the questions that walk it.

Path parameters

NameTypeDescription
id reqstring, ^[a-z]+\.[a-z-]+$Garden id, e.g. ip.prior-art.

Responses

200The garden record, plus questions[]: the walks over it.
400VALIDATION_ERRORid is not shaped corpus.slug.
404NOT_FOUNDNo garden has this id; known lists the ids.
Request
curl -sS "$BASE/gardens/ip.prior-art" \
  -H "Authorization: Bearer $ANTECEDINT_API_KEY"
Load your key above to run this.

Patent space

Positions, neighbours, citations and gaps in one shared coordinate frame.

Patent position and its nearest semantic neighbours

MeteredCached MCP tool get_patent_neighborhood

One call frames a patent's neighbourhood, which is the payload behind the display-mode embed: { self, neighbors[], count }.

self is null when the application has no vector in the index, which happens for pre-corpus, design, and plant applications. The application can still be absent entirely, and that answers 404 rather than a null self.

Neighbour order is cosine similarity in the embedding space, not 3D distance. Semantically closest comes first; the coordinates are for laying them out, not for re-deriving the ranking. Distance in the projection and rank in the list disagree often enough that sorting by one and labelling it the other will mislead.

Path parameters

NameTypeDescription
appNum reqstring, ^\d{7,12}$US application number, digits only.

Query parameters

NameTypeDescription
topK integer, 1–100Number of neighbours to return. Defaults to 20.

Responses

200{ appNum, self, neighbors[], count, timestamp }. Each neighbour is a point plus score, the cosine similarity.
400VALIDATION_ERRORappNum is not 7-12 digits, or topK is outside 1-100.
404NOT_INDEXEDNo vector is indexed for this application.
502UPSTREAM_ERRORThe vector index could not be reached.
Request
curl -sS "$BASE/patent-map/patent/16123456?topK=5" \
  -H "Authorization: Bearer $ANTECEDINT_API_KEY"
Load your key above to run this.
Response (abridged)
{
  "appNum": "16123456",
  "self": {
    "appNum": "16123456",
    "x": 4.771,
    "y": -1.02,
    "z": 2.503,
    "section": "H",
    "artUnit": "1727",
    "filingDate": "2019-05-14"
  },
  "neighbors": [
    {
      "appNum": "16412088",
      "x": 4.802,
      "y": -1.114,
      "z": 2.397,
      "section": "H",
      "artUnit": "1725",
      "filingDate": "2019-08-02",
      "score": 0.9012
    }
  ],
  "count": 5,
  "timestamp": "2026-08-14T09:12:44.108Z"
}

Cited prior art resolved to patent-space positions

MeteredCached MCP tool get_patent_citations

The application's cited prior art, resolved to map positions. Each point carries examiner: true when the reference came from the examiner rather than from the applicant's IDS, which is the distinction that matters: examiner citations are what was actually applied against the application.

Examiner-cited references lead the list and are never dropped. Applicant citations fill the remainder up to 150 references total, so a 400-reference IDS cannot balloon the response.

Pass year, the citing application's filing year, when you know it. It narrows the underlying lookup and makes the call measurably cheaper.

References with no vector in the index are counted in notIndexed and omitted from points. Positions on this API are always exact index coordinates; nothing is placed approximately to fill a gap.

Path parameters

NameTypeDescription
appNum reqstring, ^\d{7,12}$US application number, digits only.

Query parameters

NameTypeDescription
year integer, 1970–2035Filing year of the citing application. Optional, and makes the lookup faster when supplied.

Responses

200{ appNum, points[], count, citedTotal, notIndexed, examinerTotal, examinerNotIndexed, timestamp }. Each point carries examiner and title alongside the coordinates. citedTotal counts distinct US applications cited, a reference both the examiner and the applicant cited counted once, as the examiner's; foreign patents and non-patent literature are not counted here (ask's examiner_citations walk counts them, and says how many of each). examinerTotal is how many of citedTotal the examiner cited, and examinerNotIndexed how many of those have no position in the index.
400VALIDATION_ERRORappNum is not 7-12 digits, or year is implausible.
502UPSTREAM_ERRORThe citation service or vector index could not be reached.
Request
curl -sS "$BASE/patent-map/patent/16123456/citations?year=2019" \
  -H "Authorization: Bearer $ANTECEDINT_API_KEY"
Load your key above to run this.

Locate free text or an application in patent space

Metered MCP tool locate_in_patent_space

Semantic search into the space. Free text is embedded and matched against the index; given an appNum instead, the application's own abstract and first claim are joined as abstract [SEP] claim1 and used as the query, which reproduces the document representation Index-1 was built from and retrieves better than anything typed by hand.

Alongside the nearest patents it returns landing, a rank-weighted centroid of the top 8 hits. That is where the query sits in the space and the anchor a camera should fly to. It is not a patent and has no application number.

This is the one endpoint on the patent-map router that spends an embedding-hub encode per call, so it is the one that does not answer from cache.

Body

NameTypeDescription
query string, 8–4000 charsFree-text technical description. Supply either this or appNum; query wins when both are present.
appNum string, ^\d{7,12}$Locate an application by its stored vector. The application itself is excluded from neighbors.
topK integer, 1–100Number of nearest patents to return. Defaults to 20.

Responses

200{ landing: {x,y,z}, self?, neighbors[], count, located_by, timestamp }. located_by is stored_vector (the index holds the application: landing is its stored point, returned as self, and neighbour scores are against the document vector), re_encoded_text (it does not: the text was encoded as a query, scores top out near 0.87 and landing is a centroid; a note says so), or query_text.
400VALIDATION_ERRORNeither query nor appNum was supplied, or one of them failed its length or format rule.
404NOT_FOUNDNo text could be found for the application, or no indexed match carried map coordinates.
502UPSTREAM_ERRORThe embedding hub or vector index could not be reached.
503MAP_COORDINATES_UNAVAILABLEThe vector index this deployment is configured against does not store UMAP coordinates, so nothing can be placed in patent space. Prior-art search is unaffected.
Request
curl -sS "$BASE/patent-map/locate" \
  -H "Authorization: Bearer $ANTECEDINT_API_KEY" \
  -H 'Content-Type: application/json' \
  -d '{"query":"phase-change material for battery thermal management","topK":10}'
Load your key above to run this.
Response (abridged)
{
  "landing": { "x": 4.812, "y": -1.093, "z": 2.446 },
  "neighbors": [
    {
      "appNum": "16412088",
      "x": 4.771,
      "y": -1.02,
      "z": 2.503,
      "section": "H",
      "artUnit": "1727",
      "filingDate": "2019-05-14",
      "score": 0.8814
    }
  ],
  "count": 10,
  "timestamp": "2026-08-14T09:12:44.108Z"
}

Ranked gaps in patent space

FreeCached MCP tool find_whitespace

The analysed whitespace atlas: gaps in patent space, ranked by opportunity, descending. Built for the inventor-facing question of where the open ground is.

Each void carries an id, a position in the same coordinate frame as every other endpoint on this router, a radius, an opportunity score from 0 to 1, a CPC section, the bordering CPC codes with their fractions and titles, a temporal profile giving the median filing year of the surrounding art and a hot flag, a generated summary of what is missing there, the nearest bordering patents as exemplars, and the assignees active nearby.

Each exemplar carries appNum, dist, title and country; a non-US one also carries reachable: false, because its number is not a US serial and the claims and specification endpoints cannot resolve it. An exemplar the search index does not hold keeps title: null and says so in title_note. When the atlas names no assignees for a void, assignees holds those of its exemplars and assignees_source reads exemplars: the six nearest bordering patents, not a survey of the area.

The atlas is a precomputed artifact, rebuilt on its own schedule rather than on request, and cached for 30 minutes once loaded. Two calls a minute apart return the same voids.

Query parameters

NameTypeDescription
limit integer, 1–500Maximum voids to return. Defaults to 100.
section string, ^[A-HY]$Restrict to one CPC section letter.
minOpportunity number, 0–1Drop voids scoring below this. Defaults to 0.

Responses

200{ voids[], count, total, timestamp }. total counts everything matching the filters; count is how many limit allowed through.
400VALIDATION_ERRORlimit, section, or minOpportunity is out of range.
404NOT_FOUNDThe whitespace atlas has not been built.
502UPSTREAM_ERRORThe atlas could not be read from storage.
Request
curl -sS "$BASE/patent-map/whitespace?section=G&minOpportunity=0.6&limit=20" \
  -H "Authorization: Bearer $ANTECEDINT_API_KEY"
Load your key above to run this.

Sampled background point cloud

MeteredCached

A sampled background cloud for context rendering, up to 50,000 points per request.

The sample reads the map's point chunks in stored order. It is stable across calls, and it is not random: the first 10,000 points are the same 10,000 points every time, and they are not a representative sample of the corpus. Filter server-side with section and artUnit rather than over-fetching and filtering client-side, because the scan stops at a fixed budget regardless of how many points survive your filter.

That budget is 1,500,000 scanned points. A filter narrow enough to exhaust it before collecting limit points returns what it found with truncated: true. Treat that flag as a signal to narrow differently rather than to retry, since the scan is deterministic and a retry returns the same partial sample.

Query parameters

NameTypeDescription
limit integer, 100–50000Points to return. Defaults to 10000.
section string, ^[A-HY]$Restrict to one CPC section letter.
artUnit string, ^\d{1,4}$Restrict to an art-unit prefix.

Responses

200{ points[], count, truncated, timestamp }
400VALIDATION_ERRORlimit, section, or artUnit is out of range.
502UPSTREAM_ERRORThe map's point chunks could not be read from storage.
Request
curl -sS "$BASE/patent-map/points?limit=5000&section=H" \
  -H "Authorization: Bearer $ANTECEDINT_API_KEY"
Load your key above to run this.

Data feedback

Report a wrong value or missing data in a garden. Free, up to 100 reports a day; an accepted report earns credits.

Report a data error

Free MCP tool submit_data_feedback
This endpoint is beta. Its shape can change without a version bump.

File a report of a wrong value or missing data in a garden. Free, never counted against the request limits, and capped at 100 a day per account. With a key, a report a decision model finds specific and new earns 2 credits at once (up to 20 a day), and one a reviewer accepts earns 10, 50 or 200 more; a rejected one or a repeat of an accepted one earns nothing. With anonymous true, reviewers and the export never see who filed it and it earns no credits. Without a key a report is filed anonymously, earns no credits, and is capped at 20 a day per address. Reports are stored and read by people: describe the data error and leave out personal or confidential details.

Body

NameTypeDescription
garden reqstring, ^[a-z]+\.[a-z-]+$The garden the value came from, such as ip.classification.
kind reqstring, one of incorrect_value, missing_data, wrong_link, unclear, otherWhat is wrong, or unclear for something you cannot explain.
evidence reqstring, 10–4000 charsWhat the source says and where.
document_id string, 1–200 charsThe document, record or entry.
field string, 1–200 charsThe field or label, or the text of a hold.
current_value string, 0–2000 charsThe value as served.
proposed_value string, 0–2000 charsThe value it should be.
sources string[], max 5Links to the source record.
certainty string, one of confirmed, likely, unsureHow sure the filer is. Unsure reports are welcome.
anonymous booleanHide who filed it from reviewers and the export. An anonymous report earns no credits. Defaults to false.
sources[] string, ^https?:\/\/One link, http or https, at most 500 characters.

Responses

200{ feedback_id, status, submitted_today, daily_cap, reward_policy }.
400VALIDATION_ERRORA field is missing or out of bounds.
400UNKNOWN_GARDENNo garden by that id.
403ACCOUNT_REQUIREDA key was sent and it belongs to no account. File without a key instead.
409DUPLICATEThis account already filed this report and it is open or accepted.
429DAILY_LIMITThis account has filed 100 reports today, or this address 20 without a key.
503ANONYMOUS_UNAVAILABLEAnonymous filing is unavailable on this deployment.
Request
curl -sS -X POST "$BASE/feedback" -H "Authorization: Bearer $ANTECEDINT_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"garden":"ip.classification","kind":"incorrect_value","document_id":"US11322549B2","field":"main_cpc","proposed_value":"H01M 10/0562","evidence":"The grant lists H01M 10/0562 first on its front page."}'
Load your key above to run this.

Judge a search's results and suggest better ones

This endpoint is beta. Its shape can change without a version bump.

Judge a search: say which results served were relevant and name better ones found elsewhere (a patent or application, or non-patent literature by DOI, URL or citation), so the ranking can be measured and retrained. Searches are not stored, so the query is kept only if sent here, and sealed when it is; leave it out to judge the results alone. Same queue, daily cap and credits as a data error report: free, uncounted, 2 credits at once when the screen finds it specific and new (up to 20 a day), more when a reviewer accepts it. Reports are stored and read by people: leave out personal or confidential details.

Body

NameTypeDescription
garden reqstring, ^[a-z]+\.[a-z-]+$The garden the search read, such as ip.prior-art.
tool string, ^[a-z][a-z0-9_]{1,60}$The tool that ran the search, such as search_prior_art or ask.
query string, 0–20000 charsThe query or claim as searched. Optional, and kept only if sent.
as_of string, ^\d{4}(-\d{2}(-\d{2})?)?$The date bound the search used.
filters objectOther filters the search used (cpc3, country, excludeFamilyOf).
shown object[], max 100The results as served, in rank order, each judged or not.
shown[].id reqstring, 1–200 charsThe result's id as served.
shown[].rank integer, 1–1000Its rank in the answer.
shown[].judgement string, one of highly_relevant, relevant, partly_relevant, not_relevantHow relevant it is.
shown[].why string, 0–1000 charsWhy.
better object[], max 25Results the search should have returned.
better[].id string, 1–200 charsA patent, publication or application number.
better[].npl objectNon-patent literature: title, doi, url, authors, year, citation.
better[].judgement string, one of highly_relevant, relevant, partly_relevant, not_relevantHow relevant it is (default relevant).
better[].rank_wanted integer, 1–1000Where it should have ranked.
better[].why string, 0–1000 charsWhy it is better.
better[].passage string, 0–2000 charsThe passage that discloses the point.
note reqstring, 10–4000 charsWhat the judgement rests on.
sources string[], max 5Links to the better results.
certainty string, one of confirmed, likely, unsureHow sure the filer is.
anonymous booleanHide who filed it from reviewers and the export. Earns no credits. Defaults to false.

Responses

200{ feedback_id, status, query_stored, judged, better, submitted_today, daily_cap, screen, reward_policy }.
400VALIDATION_ERRORA field is missing or out of bounds.
400UNKNOWN_GARDENNo garden by that id.
400NOTHING_JUDGEDNo result judged and no better result named.
403ACCOUNT_REQUIREDA key was sent and it belongs to no account. File without a key instead.
409DUPLICATEThis account already filed this judgement and it is open or accepted.
429DAILY_LIMITThis account has filed 100 reports today, or this address 20 without a key.
Request
curl -sS -X POST "$BASE/feedback/search" -H "Authorization: Bearer $ANTECEDINT_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"garden":"ip.prior-art","tool":"search_prior_art","shown":[{"id":"16412088","rank":1,"judgement":"not_relevant"}],"better":[{"npl":{"title":"Phase change materials for battery thermal management","doi":"10.1016/j.jpowsour.2015.01.030"},"judgement":"highly_relevant","rank_wanted":1,"why":"Discloses the PCM layer in contact with the cells and a conductive lattice."}],"note":"The top result is about electrolyte additives; the paper discloses both limitations of the claim."}'
Load your key above to run this.

List data error reports

Free MCP tool list_data_feedback
This endpoint is beta. Its shape can change without a version bump.

The reports this account has filed, newest first, each with its status, the reward tier and credits granted when accepted, and the reviewer's note; with how many were filed today against the daily cap and the credits earned in all. With id, one report.

Query parameters

NameTypeDescription
status string, one of submitted, accepted, rejected, duplicateOnly reports with this status.
id string, ^fb_[A-Za-z0-9_-]{20}$One report.

Responses

200{ feedback[], submitted_today, daily_cap, credits_earned, reward_policy }, or one report with id.
403ACCOUNT_REQUIREDThe key belongs to no account.
404NOT_FOUNDNo report by that id for this account.
Request
curl -sS "$BASE/feedback?status=accepted" -H "Authorization: Bearer $ANTECEDINT_API_KEY"
Load your key above to run this.

§112 claim validation

Antecedent basis and claim-term support, for drafts and for filed applications.

Check a draft claim set for antecedent-basis defects

Check a claim set for §112(b) antecedent-basis defects. Finds definite recitations ("the widget", "said widget") with no earlier indefinite recitation in the same claim or in a claim it depends from, plus double inclusions, plural and singular mismatches, and improper dependencies.

Implicit antecedent basis under MPEP 2173.05(e) is suppressed, so "the outer surface of the housing" is not flagged when the housing was properly introduced. Pass includeSuppressed to see what the suppression rules removed and which rule removed each one, which is how you audit the checker rather than trust it.

Findings are graded. high means no plausible antecedent exists anywhere in the set; low means one probably exists under different wording and a human should look.

Deterministic, no LLM, no network, and sub-millisecond per claim, so a draft editor can call it on every keystroke.

Body

NameTypeDescription
claims reqobject[], max 300The claim set, in order. Each entry is { number?, text }; a bare string is accepted in place of an object, and a missing number is filled from the array position.
claims[].text reqstring, 10+ charsClaim text without the leading number.
claims[].number integer, 1 and upClaim number.
minSeverity string, one of high, medium, lowLowest severity to report. Defaults to low.
includeSuppressed booleanAlso return the candidates the implicit-basis rules suppressed, each with the rule that killed it. Defaults to false.

Responses

200{ available: true, source: "request", issues[], claims[], dependencies[], stats }. issues[] is the flat list of every defect found; each entry of claims[] also carries its own issues[]. stats holds issueCount, bySeverity and byType. An empty issues[] means the claim set is clean, and is the only thing that means that.
400No claim in claims[] carried usable text, or minSeverity was not one of high, medium, low. The body is { error } with no code field. An unrecognised minSeverity is refused rather than defaulted, because silently returning the unfiltered list looks like a filtered one.
500The check itself failed.
Request
curl -sS "$BASE/claim-validation/antecedent-basis" \
  -H "Authorization: Bearer $ANTECEDINT_API_KEY" \
  -H 'Content-Type: application/json' \
  -d '{"claims":[{"number":1,"text":"A device comprising a housing."},
  {"number":2,"text":"The device of claim 1, wherein the lid is hinged."}]}'
Load your key above to run this.
Response (abridged)
{
  "available": true,
  "source": "request",
  "claims": [
    {
      "number": 2,
      "isIndependent": false,
      "dependsOn": [1],
      "introducedTerms": [],
      "issues": [
        {
          "claimNumber": 2,
          "term": "lid",
          "display": "the lid",
          "type": "no-antecedent-basis",
          "severity": "high",
          "start": 34,
          "end": 41,
          "snippet": "The device of claim 1, wherein the lid is hinged."
        }
      ]
    }
  ],
  "stats": {
    "claimCount": 2,
    "independentCount": 1,
    "issueCount": 1,
    "claimsWithIssues": 1,
    "bySeverity": { "high": 1, "medium": 0, "low": 0 },
    "byType": { "no-antecedent-basis": 1 }
  }
}

Check the filed claims of an application

MeteredCached MCP tool check_antecedent_basis

The same check as POST /antecedent-basis, run over the claims already on file for an application rather than over claims you supply.

An application whose claims are not in the warehouse answers 200 with { available: false, reason: "no-claims" }, not 404. The distinction is deliberate: the application exists and the request was well formed, we just have nothing to check. Branch on available before reading issues.

Path parameters

NameTypeDescription
appNum reqstring, ^\d{7,8}$US application number, digits only.

Query parameters

NameTypeDescription
minSeverity string, one of high, medium, lowLowest severity to report. Defaults to low.
includeSuppressed booleanSend 1 to include suppressed candidates with the rule that removed each.

Responses

200{ appNum, available: true, source: "warehouse", issues[], claims[], dependencies[], stats }, shaped exactly as the POST above, or { appNum, available: false, reason: "no-claims" } when nothing is on file.
400appNum is not a 7-8 digit US application number, or minSeverity was not one of high, medium, low.
502The claim pull from the warehouse failed.
Request
curl -sS "$BASE/claim-validation/antecedent-basis/16123456?minSeverity=high" \
  -H "Authorization: Bearer $ANTECEDINT_API_KEY"
Load your key above to run this.

Map claim terms to their specification support

Metered MCP tool map_claim_support

Map every claim term to the specification passages that give it meaning, with exact locations: section, paragraph number, and character offsets.

Each term is graded by how the spec supports it, not merely whether the word appears. A term can be formally defined, defined by the claim itself, scoped by enumeration, mapped to an embodiment, characterized functionally, merely described, or UNDESCRIBED. That last grade is the §112(a) written-description signal worth acting on.

claims[] is always required on this endpoint. Use GET /support/:appNum when you want the filed claims analyzed instead of your own.

Supply sections and the analysis runs against your own specification text and touches no network, which is what makes this usable on an unfiled draft. Supply appNum without sections and the filed specification is pulled for you. Supplying appNum with includeParents walks the continuity chain and checks each parent specification too, so a term supported here but in no ancestor is surfaced as new matter that cannot claim the parent's filing date. The walk needs appNum; it cannot run on text alone.

Body

NameTypeDescription
claims reqobject[], max 300Claim set to analyze, each { number?, text }. Always required here; GET /support/:appNum uses the filed claims instead.
sections object[], max 60Specification sections to ground against, each { type?, name?, text }. Either this or appNum is required.
appNum string, ^\d{7,8}$US application number. Required for the continuity walk, and used to pull the spec when sections is omitted.
includeParents booleanWalk the continuity chain and check each parent specification. Ignored without appNum. Defaults to false.
maxAncestors integer, 0–12Cap on ancestors to check. Defaults to 6.
ocr booleanAllow OCR for image-only filings. Most provisionals are image-only, so the walk usually needs this to read them. Defaults to false.

Responses

200Per-term support grades with locations, plus the ancestor results when the continuity walk ran.
400claims[] was empty, or neither sections[] nor appNum was supplied.
500The analysis failed.
Request
curl -sS "$BASE/claim-validation/support" \
  -H "Authorization: Bearer $ANTECEDINT_API_KEY" \
  -H 'Content-Type: application/json' \
  -d '{"appNum":"16123456","includeParents":true,"ocr":true,
  "claims":[{"number":1,"text":"A battery pack comprising a phase-change layer."}]}'

This one spends real model inference on each call. Run it in the sandbox →

Support map for a filed application and its parents

MeteredCached MCP tool map_claim_support

The support map for an application already on file, using its filed claims and its filed specification. No claim text is supplied by the caller.

The continuity walk runs by default here, which is the opposite of POST /support. Send parents=0 to analyze the application's own specification alone. The walk is what makes this call slow and what makes it worth making: it is where new matter shows up.

OCR is opt-in with ocr=1 and is usually needed for the walk to be meaningful, because most provisionals are image-only scans with no extractable text layer. Without it an unreadable ancestor contributes nothing, and a term it actually supports can be reported as new matter. The flag is also killable server-side: when SPEC_OCR_DISABLED is set, ocr=1 is ignored rather than refused.

Path parameters

NameTypeDescription
appNum reqstring, ^\d{7,8}$US application number, digits only.

Query parameters

NameTypeDescription
parents booleanSend 0 to skip the continuity walk. Defaults to 1.
maxAncestors integer, 0–12Cap on ancestors to check. Defaults to 6.
ocr booleanSend 1 to allow OCR on image-only filings.

Responses

200Per-term support grades with locations, plus per-ancestor results and any new-matter findings when the continuity walk ran.
400appNum is not a 7-8 digit US application number.
502The specification pull or the analysis failed.
Request
curl -sS "$BASE/claim-validation/support/16123456?ocr=1&maxAncestors=4" \
  -H "Authorization: Bearer $ANTECEDINT_API_KEY"
Load your key above to run this.

Warm-up

Start the inference hub before a search needs it, so the cold start is paid off the critical path.

Start the inference hub ahead of a search

FreeCached

Start the inference hub before you need it.

The hub scales to zero, so the first search after an idle period pays ~75s of model loading. Call this a minute or two ahead and that cost is paid off the critical path; the search that follows runs at its warm latency of a few seconds.

Scaling to zero is a tier decision, not an accident: a held instance is provisioned for contracted tiers and not for the evaluation tier. warm_policy in the response says which the caller is on, whether an instance is held for it right now, and what to do.

The call returns immediately whether or not the hub is ready — it never blocks for the cold start. Poll GET /warmup to watch it become ready, or simply proceed and accept whatever state the hub is in.

Query parameters

NameTypeDescription
rerank booleanAlso load the reranker, which search_prior_art needs when useReranking is set. Adds ~25s to the warm-up and is unnecessary for retrieval alone. Defaults to false.
wait integerSeconds to wait for the models to finish loading before answering, up to 120. The default of 0 returns straight away and leaves the caller to poll. Set this and the call blocks until ready is true or the wait runs out, which is one round trip instead of a polling loop. Defaults to 0.

Responses

200{ ready, warming, models, estimatedReadySeconds, warmWindowSeconds, warm_policy, questions_needing_encoder }. ready true means a warm instance exists now; it is not a reservation. warm_policy carries tier, held_warm (whether an instance is held for that tier on this deployment) and why, the sentence to act on. encoder says which encoder serves the next search: hub, gpu (the index v2 encoder, which scales to zero), or vm when the always-on query encoder takes it, which is ready at once.
502UPSTREAM_ERRORThe inference hub could not be reached at all.
Request
curl -sS -X POST "$BASE/warmup?rerank=true" \
  -H "Authorization: Bearer $ANTECEDINT_API_KEY"
Load your key above to run this.
Response (abridged)
{
  "ready": false,
  "warming": true,
  "models": { "encoder": false, "reranker": false },
  "estimatedReadySeconds": 100,
  "warmWindowSeconds": 900,
  "note": "Cloud Run routes each request independently, so a warm instance makes a fast search likely rather than guaranteed."
}

Whether the inference hub is warm

FreeCached

Whether the inference hub is warm right now.

Read-only: it reports state and starts nothing. Use it to poll after POST /warmup, or to decide whether a search is about to be fast before committing to it.

Responses

200{ ready, models, warmWindowSeconds, warm_policy, questions_needing_encoder }. ready reflects the encoder only; check models.reranker if the next call sets useReranking.
502UPSTREAM_ERRORThe inference hub could not be reached at all.
Request
curl -sS "$BASE/warmup" -H "Authorization: Bearer $ANTECEDINT_API_KEY"
Load your key above to run this.
Response (abridged)
{
  "ready": true,
  "models": { "encoder": true, "reranker": false },
  "warmWindowSeconds": 900
}

Usage

What the calling key has spent and has left this month and today, and when each limit resets. Free, and never counted.

What this key has spent and has left, and when each limit resets

FreeCached

The calling key's plan, what it has spent this month and today, and what is left.

Every figure is the holder's: for a key in an organisation, the organisation's shared pool (pooled is true and org names it), which is what the quota is enforced against. Otherwise the key's own.

credits.monthly is the allowance: used, remaining and resetAt. credits.purchased is bought credits, spent after the allowance and never expiring. credits.spendable is the two together, which is what the next call can spend before anything past the allowance is touched. credits.overage is what was served this month past both; it is forgiven when the month resets. A paid plan carries softCeiling: it keeps serving to twice its allowance, and remaining is what is left of that headroom. The evaluation tier carries dailyFloor instead: once the month is spent it still serves credits a day. While it is not in force (active: false) it says only when it applies; once active it adds usedToday, remainingToday and resetAt. A plan with neither stops at the allowance.

requests.day and requests.month are the request ceilings, which count every call except warm-up, this one and MCP protocol messages. key.expiresAt is when the key stops working if nobody signs in: an account key renews on every sign-in at antecedint.com and whenever an application reconnects. All times are ISO 8601 in UTC.

Pass credits to ask about a planned spend: projected then says whether calls totalling that would be served and how they would be drawn.

Query parameters

NameTypeDescription
credits integer, 1–1000000A planned spend. Adds projected: whether it would be served, and how much would come from the allowance, the purchased balance and overage.

Responses

200{ tier, plan, pooled, org, credits, requests, key, upgrade, account, timestamp }, plus projected when credits is passed.
400VALIDATION_ERRORcredits is not a positive integer.
503USAGE_UNAVAILABLEThe deployment's key store keeps no usage counters.
Request
curl -sS "$BASE/usage" \
  -H "Authorization: Bearer $ANTECEDINT_API_KEY"
Load your key above to run this.
Response (abridged)
{
  "tier": "free",
  "plan": "Evaluate",
  "pooled": false,
  "org": null,
  "credits": {
    "monthly": { "allowance": 500, "used": 20, "remaining": 480, "resetAt": "2026-10-01T00:00:00.000Z" },
    "purchased": { "balance": 0 },
    "spendable": 480,
    "overage": { "used": 0, "active": false },
    "softCeiling": null,
    "dailyFloor": { "credits": 20, "active": false, "appliesWhen": "the monthly allowance and purchased credits are both spent" }
  },
  "requests": {
    "day": { "used": 2, "limit": 100, "remaining": 98, "resetAt": "2026-09-28T00:00:00.000Z" },
    "month": { "used": 2, "limit": 2000, "remaining": 1998, "resetAt": "2026-10-01T00:00:00.000Z" }
  },
  "key": { "keyId": "ak_live_1a2b3c4d", "status": "active", "expiresAt": "2026-12-26T09:14:00.000Z", "renewsOnSignIn": true },
  "upgrade": "https://antecedint.com/pricing",
  "account": "https://antecedint.com/account"
}

Background jobs

The status and result of a tool call made with async true. Free, and never counted.

Read a background job's status and result

FreeCached MCP tool get_job

One job's status, and the tool's result once it has finished.

status is queued, running, succeeded or failed. A finished job carries result, the payload the tool returned (the same JSON a direct call returns), and is_error, which is true when the tool itself reported an error. A job whose result could not be kept carries error_code instead (RESULT_TOO_LARGE: call the tool without async).

Pass wait_seconds (up to 25) to hold the request until the job finishes or the wait runs out: one call instead of a polling loop. Jobs are kept for a day after they are created. A handle that belongs to another key reads as no job at all.

Body

NameTypeDescription
job_id reqstring, 20–80 charsThe handle an async tool call returned, job_<id>.<key>.
wait_seconds integer, 0–25Wait up to this long for the job to finish. Defaults to 0.
page integer, 1–1000Which page of a long result to return. Defaults to 1.

Responses

200{ job_id, tool, status, created, started?, finished?, run_ms?, is_error?, result?, pagination?, context?, error_code?, next? }. A result longer than one page (about 24,000 characters of JSON) is split on its longest list; pagination gives { page, pages, field, items, next }.
400VALIDATION_ERRORjob_id is missing or wait_seconds is out of range.
400INVALID_JOB_IDjob_id is not a whole job handle.
404NOT_FOUNDNo such job for this key, or it has expired.
Request
curl -sS -X POST "$BASE/jobs/read" \
  -H "Authorization: Bearer $ANTECEDINT_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"job_id":"job_Q2F0cy1hbmQtZG9ncw.<key>","wait_seconds":20}'
Load your key above to run this.
Response (abridged)
{
  "job_id": "job_Q2F0cy1hbmQtZG9ncw.<key>",
  "tool": "search_prior_art",
  "status": "succeeded",
  "created": "2026-09-27T18:40:02.114Z",
  "started": "2026-09-27T18:40:02.310Z",
  "finished": "2026-09-27T18:40:19.842Z",
  "run_ms": 17532,
  "is_error": false,
  "result": { "success": true, "data": { "specifications": [] } }
}

List this key's recent background jobs

FreeCached

The calling key's recent jobs, newest first: tool, status and times only. A result is read with the full handle the async call returned, which is not stored, so this cannot return results or handles.

Query parameters

NameTypeDescription
limit integer, 1–100How many to return. Defaults to 20.

Responses

200{ count, jobs: [{ id, tool, status, created, finished? }], note }
400VALIDATION_ERRORlimit is out of range.
Request
curl -sS "$BASE/jobs?limit=5" \
  -H "Authorization: Bearer $ANTECEDINT_API_KEY"
Load your key above to run this.
Response (abridged)
{
  "count": 1,
  "jobs": [{ "id": "job_Q2F0cy1hbmQtZG9ncw", "tool": "test_claim_support", "status": "running", "created": "2026-09-27T18:41:00.000Z" }],
  "note": "Results are read with the full job_id the async call returned; it is not stored and cannot be listed."
}

The map

The areas of law this server covers and the ones planned, as data: what the MCP front door lists first.

List the areas of law

FreeCached MCP tool list_areas

The areas of law this server covers and the ones planned, each live area with its corpora and how many gardens, paths and capabilities it holds on this deployment.

Query parameters

NameTypeDescription
area string, 1–40 charsOne area id, such as ip, to list only that area.

Responses

200{ areas: [{ id, title, status, corpora, gardens, paths, capabilities }], planned, timestamp }
Request
curl -sS "$BASE/areas" -H "Authorization: Bearer $ANTECEDINT_API_KEY"
Load your key above to run this.
Response (abridged)
{
  "areas": [{ "id": "ip", "title": "Patents and IP", "status": "live", "corpora": ["patents", "prosecution", "guidance"], "gardens": 11, "paths": 1, "capabilities": 44 }],
  "planned": [{ "key": "caselaw", "label": "Case law", "phase": "Phase 2" }],
  "timestamp": "2026-09-28T12:00:00.000Z"
}

List the capabilities in an area, garden or path

FreeCached MCP tool list_tools

The capabilities inside an area, a garden or a path, one line each: id, what it does, price, whether it writes, and its arguments in short form. run_with names the front-door tool that runs it: run_tool for one that reads, update_workspace for one that saves or changes something.

Query parameters

NameTypeDescription
area string, 1–40 charsAn area id, such as ip.
garden string, 1–60 charsA garden id, such as ip.records.
path string, 1–60 charsA path id, such as ip.provisional.
query string, 1–200 charsWords to match in ids, titles and descriptions.

Responses

200{ count, tools: [{ id, title, summary, area, garden, path, writes, run_with, credits, args }], timestamp }
400VALIDATION_ERRORA filter is empty or too long.
Request
curl -sS "$BASE/capabilities?garden=ip.prior-art" \
  -H "Authorization: Bearer $ANTECEDINT_API_KEY"
Load your key above to run this.
Response (abridged)
{
  "count": 1,
  "tools": [{ "id": "search_prior_art", "title": "Prior Art Search", "summary": "Semantic prior-art search over 10.5M+ US patents for a claim and/or abstract.", "area": "ip", "garden": "ip.prior-art", "path": null, "writes": false, "run_with": "run_tool", "credits": 10, "args": { "claims": "string", "abstract": "string" } }],
  "timestamp": "2026-09-28T12:00:00.000Z"
}

Describe one capability

FreeCached MCP tool describe_tool

One capability in full: its description, complete argument schema, an example that runs, the fields its answer carries, the limits it states, its price, whether it can run in the background, and which front-door tool runs it.

Path parameters

NameTypeDescription
id reqstring, ^[a-z][a-z0-9_]{1,63}$The capability id, such as search_prior_art.

Responses

200{ id, title, summary, description, area, garden, path, writes, run_with, credits, args, inputSchema, example, returns, context, async, preconditions, timestamp }. preconditions lists the calls to make first on this key's tier, as { tier, when, call, args, why }; empty when none apply.
400VALIDATION_ERRORThe id is not a capability id.
404NOT_FOUNDNo capability with that id on this deployment.
Request
curl -sS "$BASE/capabilities/search_prior_art" \
  -H "Authorization: Bearer $ANTECEDINT_API_KEY"
Load your key above to run this.
Response (abridged)
{
  "id": "search_prior_art",
  "title": "Prior Art Search",
  "run_with": "run_tool",
  "credits": 10,
  "inputSchema": { "type": "object", "properties": { "claims": { "type": "string" } } },
  "example": { "claims": "A method comprising …" },
  "async": true,
  "timestamp": "2026-09-28T12:00:00.000Z"
}

The map

The capabilities inside each area, garden and path, as data: what the MCP front door lists and describes.

List the areas of law

FreeCached MCP tool list_areas

The areas of law this server covers and the ones planned, each live area with its corpora and how many gardens, paths and capabilities it holds on this deployment.

Query parameters

NameTypeDescription
area string, 1–40 charsOne area id, such as ip, to list only that area.

Responses

200{ areas: [{ id, title, status, corpora, gardens, paths, capabilities }], planned, timestamp }
Request
curl -sS "$BASE/areas" -H "Authorization: Bearer $ANTECEDINT_API_KEY"
Load your key above to run this.
Response (abridged)
{
  "areas": [{ "id": "ip", "title": "Patents and IP", "status": "live", "corpora": ["patents", "prosecution", "guidance"], "gardens": 11, "paths": 1, "capabilities": 44 }],
  "planned": [{ "key": "caselaw", "label": "Case law", "phase": "Phase 2" }],
  "timestamp": "2026-09-28T12:00:00.000Z"
}

List the capabilities in an area, garden or path

FreeCached MCP tool list_tools

The capabilities inside an area, a garden or a path, one line each: id, what it does, price, whether it writes, and its arguments in short form. run_with names the front-door tool that runs it: run_tool for one that reads, update_workspace for one that saves or changes something.

Query parameters

NameTypeDescription
area string, 1–40 charsAn area id, such as ip.
garden string, 1–60 charsA garden id, such as ip.records.
path string, 1–60 charsA path id, such as ip.provisional.
query string, 1–200 charsWords to match in ids, titles and descriptions.

Responses

200{ count, tools: [{ id, title, summary, area, garden, path, writes, run_with, credits, args }], timestamp }
400VALIDATION_ERRORA filter is empty or too long.
Request
curl -sS "$BASE/capabilities?garden=ip.prior-art" \
  -H "Authorization: Bearer $ANTECEDINT_API_KEY"
Load your key above to run this.
Response (abridged)
{
  "count": 1,
  "tools": [{ "id": "search_prior_art", "title": "Prior Art Search", "summary": "Semantic prior-art search over 10.5M+ US patents for a claim and/or abstract.", "area": "ip", "garden": "ip.prior-art", "path": null, "writes": false, "run_with": "run_tool", "credits": 10, "args": { "claims": "string", "abstract": "string" } }],
  "timestamp": "2026-09-28T12:00:00.000Z"
}

Describe one capability

FreeCached MCP tool describe_tool

One capability in full: its description, complete argument schema, an example that runs, the fields its answer carries, the limits it states, its price, whether it can run in the background, and which front-door tool runs it.

Path parameters

NameTypeDescription
id reqstring, ^[a-z][a-z0-9_]{1,63}$The capability id, such as search_prior_art.

Responses

200{ id, title, summary, description, area, garden, path, writes, run_with, credits, args, inputSchema, example, returns, context, async, preconditions, timestamp }. preconditions lists the calls to make first on this key's tier, as { tier, when, call, args, why }; empty when none apply.
400VALIDATION_ERRORThe id is not a capability id.
404NOT_FOUNDNo capability with that id on this deployment.
Request
curl -sS "$BASE/capabilities/search_prior_art" \
  -H "Authorization: Bearer $ANTECEDINT_API_KEY"
Load your key above to run this.
Response (abridged)
{
  "id": "search_prior_art",
  "title": "Prior Art Search",
  "run_with": "run_tool",
  "credits": 10,
  "inputSchema": { "type": "object", "properties": { "claims": { "type": "string" } } },
  "example": { "claims": "A method comprising …" },
  "async": true,
  "timestamp": "2026-09-28T12:00:00.000Z"
}

Status

This key's usage and the search models' warmth in one answer, with an optional warm-up. Free, and never counted.

Usage and model warmth for this key

FreeCached MCP tool get_status

What this key has spent and has left, and whether the search models are warm. Starts nothing.

usage is the body GET /usage returns (plan, credits, requests, key, and projected when credits is passed). models is the body GET /warmup returns.

Query parameters

NameTypeDescription
credits integer, 1–1000000A planned spend; adds usage.projected.

Responses

200{ usage, models, timestamp }
400VALIDATION_ERRORcredits is not a positive integer.
502UPSTREAM_ERRORThe inference hub could not be reached at all.
Request
curl -sS "$BASE/status" -H "Authorization: Bearer $ANTECEDINT_API_KEY"
Load your key above to run this.
Response (abridged)
{
  "usage": { "tier": "free", "credits": { "monthly": { "allowance": 500, "used": 20, "remaining": 480 } } },
  "models": { "ready": false, "models": { "encoder": false, "reranker": false }, "warmWindowSeconds": 900 },
  "timestamp": "2026-09-28T12:00:00.000Z"
}

Start the search models, then report usage and warmth

FreeCached MCP tool get_status

The same answer, after starting the search models if they are cold. Returns at once unless wait is set, which blocks up to that many seconds until the models are ready.

Query parameters

NameTypeDescription
warm booleanStart the models (the get_status tool sends it with warm). Defaults to true.
rerank booleanAlso load the reranker (about 25 seconds more). Defaults to false.
wait integer, 0–120Seconds to wait for the models to be ready. Defaults to 0.
credits integer, 1–1000000A planned spend; adds usage.projected.

Responses

200{ usage, models, timestamp }, models as POST /warmup returns it. Where case law is served, the call also starts the case-law search and the citation web, and models.caselaw_search says whether the search is loaded (ready) or starting from zero instances (starting, with estimatedReadySeconds).
400VALIDATION_ERRORA parameter is out of range.
502UPSTREAM_ERRORThe inference hub could not be reached at all.
Request
curl -sS -X POST "$BASE/status?wait=60" -H "Authorization: Bearer $ANTECEDINT_API_KEY"
Load your key above to run this.
Response (abridged)
{
  "usage": { "tier": "free" },
  "models": { "ready": true, "warming": false, "models": { "encoder": true, "reranker": false } },
  "timestamp": "2026-09-28T12:00:00.000Z"
}

Reference

Dated reference material: fee schedules, filing steps, drafting rules and the registry. The same set MCP resources serve.

List the dated reference material

FreeCached MCP tool read_reference

The references this deployment serves, optionally narrowed to those whose title, description or uri contains every word of query.

Query parameters

NameTypeDescription
query string, 1–200 charsWords to match against each reference's title, description and uri.

Responses

200{ count, references: [{ uri, name, title, description, area }], timestamp }
400VALIDATION_ERRORquery is empty or too long.
Request
curl -sS "$BASE/references?query=fee" \
  -H "Authorization: Bearer $ANTECEDINT_API_KEY"
Load your key above to run this.
Response (abridged)
{
  "count": 1,
  "references": [{ "uri": "antecedint://ip/uspto/fee-schedule", "name": "uspto-fee-schedule", "title": "USPTO provisional fees", "description": "The provisional filing fee …", "area": "ip" }],
  "timestamp": "2026-09-27T19:00:00.000Z"
}

Read one reference by uri

FreeCached MCP tool read_reference

One reference's content, by uri. JSON references are returned parsed under content; others as text.

Query parameters

NameTypeDescription
uri reqstring, 12–200 charsThe reference's uri, antecedint://<area>/<topic>/<name>.

Responses

200{ uri, mimeType, content | text, timestamp }
400VALIDATION_ERRORuri is missing.
404REFERENCE_NOT_FOUNDNo reference at that uri on this deployment.
Request
curl -sS "$BASE/references/read?uri=antecedint://service/jobs" \
  -H "Authorization: Bearer $ANTECEDINT_API_KEY"
Load your key above to run this.
Response (abridged)
{
  "uri": "antecedint://service/jobs",
  "mimeType": "text/markdown",
  "text": "# Background jobs\n\nPass `async: true` to any tool that lists it. …",
  "timestamp": "2026-09-27T19:00:00.000Z"
}

Prosecution intelligence

CPC scheme and empirical routing, art-unit behaviour, and examiner statistics.

CPC symbol with its art-unit distribution and children

MeteredCached MCP tool lookup_cpc_code

One CPC symbol, resolved three ways at once: what the scheme says it means, which art units actually examine it, and what sits under it.

The art-unit distribution is empirical rather than declared — it is where applications carrying this symbol were really routed, with the modal unit, the per-unit probabilities and the Shannon entropy of the spread. A low entropy means the symbol predicts the art unit; a high one means it does not, which is the more useful answer when deciding whether to argue classification.

children is capped by childLimit, because a subclass can carry thousands of subgroups and a caller asking about C11D wants to know that it has children, not to receive all of them. child_count always reports the true total. The art-unit distribution is capped the same way by distributionLimit: it is sorted by count, unique_art_units is the true total, and a symbol examined by 222 units does not need all 222 listed to show that one of them takes 37%.

Path parameters

NameTypeDescription
code reqstring, ^[A-HY][0-9A-Z/]{0,18}$CPC symbol, e.g. C11D or C11D7/261.

Query parameters

NameTypeDescription
childLimit integer, 0–500How many child symbols to return. Defaults to 50.
distributionLimit integer, 0–500How many art units to list in art_units.distribution, largest first. Defaults to 20.

Responses

200{ code, scheme, art_units, children[], child_count }. scheme is null for a symbol with routing data but no scheme entry; art_units is null for a symbol nothing has been routed under.
400VALIDATION_ERRORcode is not a CPC symbol, or a limit is outside 0-500.
404NOT_FOUNDNeither the scheme nor the routing data knows this symbol.
503CORPUS_UNAVAILABLEThe corpus database is not configured or not reachable.
Request
curl -sS "$BASE/patent-intel/cpc/C11D?childLimit=5" \
  -H "Authorization: Bearer $ANTECEDINT_API_KEY"
Load your key above to run this.
Response (abridged)
{
  "code": "C11D",
  "scheme": {
    "code": "C11D",
    "title": "DETERGENT COMPOSITIONS",
    "level": "subclass",
    "parent": "C11"
  },
  "art_units": {
    "level": "subclass",
    "total_count": 14476,
    "unique_art_units": 222,
    "top_art_unit": "1761",
    "top_art_unit_probability": 0.3689,
    "entropy": 4.3798,
    "distribution": [
      { "au": "1761", "count": 5227, "probability": 0.36893 }
    ]
  },
  "children": [
    { "code": "C11D1/00", "title": "Detergent compositions", "level": "group" }
  ],
  "child_count": 132
}

CPC classification for a publication or application number

MeteredCached MCP tool get_patent_classification

The CPC assignment on one published application or granted patent, as the USPTO Master Classification File records it.

The number is tried as a publication number first and an application number second, so a caller holding either can ask without saying which it has. The main symbol is resolved against the scheme, so the answer carries a title and not only a code.

inventive_cpcs are the symbols covering what is claimed; additional_cpcs cover subject matter disclosed but not claimed. Callers building a search from this usually want the inventive set alone.

Path parameters

NameTypeDescription
number reqstring, ^\d{7,12}$Publication or US application number, digits only.

Responses

200{ publication_number, application_number, main_cpc, main_cpc_title, inventive_cpcs[], additional_cpcs[], ... }.
400VALIDATION_ERRORnumber is not 7-12 digits.
404NOT_FOUNDNo classification record for this number.
503CORPUS_UNAVAILABLEThe corpus database is not configured or not reachable.
Request
curl -sS "$BASE/patent-intel/classification/20010000001" \
  -H "Authorization: Bearer $ANTECEDINT_API_KEY"
Load your key above to run this.
Response (abridged)
{
  "publication_number": "20010000001",
  "application_number": "09725796",
  "kind_code": "A1",
  "main_cpc": "C11D7/261",
  "main_cpc_title": "Organic compounds containing oxygen",
  "inventive_cpcs": ["C11D7/261", "C11D7/24"],
  "additional_cpcs": ["C11D7/267", "C11D7/28"]
}

Art-unit profile, statistics and examiner roster

MeteredCached MCP tool get_art_unit_profile

One art unit: what it examines and how it behaves.

Assembled from the four collections that describe a unit — the statistics, the descriptive record, the generated enrichment and the examiner roster — so a caller makes one request rather than four.

statistics carries allowance and rejection behaviour, timing, interview receptiveness, RCE tolerance and estimated cost, averaged across the unit's examiners. Read statistics.data_quality before relying on any of it: it reports how many applications and office actions the averages rest on, and the volume, recency and completeness scores behind them. Units with thin data carry the same field names and much weaker numbers.

The roster's application numbers are not returned. One unit carries tens of thousands of them, which is most of a 209 KB document and no use in a profile. The model-written description is not returned whole either: on 1725 it was 9,887 characters, 56% of the response, and it filed "bibs for hairdressers' rooms" under a materials unit. generated_context says the same in a paragraph, so description is served as its opening and its length.

examiner_count is the length of the roster served. Where the stored statistics counted a different roster (1725 lists 28 examiners against a stored 27), the stored figure appears as examiner_count_in_statistics so the disagreement is visible rather than resolved silently.

Path parameters

NameTypeDescription
artUnit reqstring, ^\d{3,4}$USPTO art unit, e.g. 2872.

Responses

200{ art_unit, technology_center, title, generated_context, description, keywords[], cpc_codes, examiners[], examiner_count, statistics }. cpc_codes summarises rather than lists: a total, counts by CPC section, and the 25 commonest subclasses. The raw list runs to 24,135 symbols for a single unit and two unrelated units share 57% of it, so it described the corpus more than the unit and made this response 383 KB. statistics is null for a unit that has a descriptive record but no computed statistics; inside it, claims_analysis.independentClaimsStats.avgIndependentClaims is null with a note where the stored value tracked the total claim count.
400VALIDATION_ERRORartUnit is not 3-4 digits.
404NOT_FOUNDNo collection holds this art unit.
503CORPUS_UNAVAILABLEThe corpus database is not configured or not reachable.
Request
curl -sS "$BASE/patent-intel/art-unit/2872" \
  -H "Authorization: Bearer $ANTECEDINT_API_KEY"
Load your key above to run this.
Response (abridged)
{
  "art_unit": "2872",
  "technology_center": "2800",
  "title": "Optics: Measuring and Testing",
  "examiner_count": 63,
  "cpc_codes": ["G01B", "G02B"],
  "examiners": ["GREY CHRISTOPHER P", "YOUNG HUGH P"],
  "statistics": {
    "portfolio": { "total_ctnf_issued_avg": 902.86 },
    "interview_metrics": { "interview_success_rate": 65.89 },
    "data_quality": {
      "total_applications_analyzed": 53392,
      "office_actions_analyzed": 132188,
      "completeness_score": 5.54
    }
  }
}

Search examiners by name or art unit

MeteredCached MCP tool find_examiner

Find examiners by surname or art unit.

Matching is anchored: an exact surname, or a prefix of the full name in the USPTO's surname-first form. An unanchored substring search would be a regex over 10,308 documents averaging a megabyte each, which is a collection scan reading 11 GB to answer a lookup. Callers wanting a specific examiner should pass the surname and filter the result.

Query parameters

NameTypeDescription
name string, 2–80 charsSurname, or a prefix of the surname-first full name.
artUnit string, ^\d{3,4}$Restrict to one art unit.
limit integer, 1–100Maximum matches to return. Defaults to 20.

Responses

200{ count, examiners[] }, each { examiner_id, full_name, art_unit, technology_center }. Empty when neither name nor artUnit is given.
400VALIDATION_ERRORA parameter failed validation.
503CORPUS_UNAVAILABLEThe corpus database is not configured or not reachable.
Request
curl -sS "$BASE/patent-intel/examiners?name=SMITH&artUnit=1609" \
  -H "Authorization: Bearer $ANTECEDINT_API_KEY"
Load your key above to run this.
Response (abridged)
{
  "count": 1,
  "examiners": [
    {
      "examiner_id": "68a73eaad7496de7109778b7",
      "full_name": "SMITH ADAM M",
      "art_unit": "1609",
      "technology_center": "Technology Center 1600"
    }
  ]
}

Examiner statistics and behavioural profile

MeteredCached MCP tool get_examiner_profile

One examiner's statistics, by examiner id or by USPTO surname-first name.

Both forms are accepted because a caller reading an office action has the name and a caller following an art-unit roster has the id.

The response carries rejection analytics, portfolio counts, interview and RCE behaviour, timing, cost analysis and percentile rankings against the unit and the corps, plus claim_interpretation where a model-written read of how this examiner construes claims exists — it does for 11 examiners, and is null for the rest rather than absent.

Six sections are withheld by default and named in sections_available. Two are cold: behavioral_patterns and rejection_analysis hold per-application detail and are together 10.6 GB of the 11.1 GB collection, the largest single document being 14.2 MB. Four are hot but wide: applications_with_interviews and applications_with_rcex are per-application lists (hundreds of rows each), by_sequence_length and document_code_breakdown are histograms with hundreds of keys. Together they were 83% of a default response. Each is replaced by its count and the include name that brings it back; document_code_breakdown keeps its ten largest codes.

data_quality reports what the numbers rest on, and says what was withheld or relabelled. populations names the five denominators that appear in one response (all applications, analysed, with documents, with office actions, with a filing date). volume.tier replaces an upstream score that was 5 for every examiner. withheld[] lists fields removed because their values were wrong and not recoverable, with what was observed; notes[] lists sections served as null because they were never computed (percentile_rankings, claims_analysis on every examiner sampled), and pairs of fields that disagree.

Path parameters

NameTypeDescription
examiner reqstring, 2–120 charsExaminer id, or USPTO surname-first full name.

Query parameters

NameTypeDescription
include stringComma-separated sections to add: behavioral_patterns, rejection_analysis (cold; megabytes), applications_with_interviews, applications_with_rcex, by_sequence_length, document_code_breakdown (hot; thousands of tokens). Unknown names are ignored.

Responses

200{ examiner_id, full_name, art_unit, technology_center, portfolio, rejection_analytics, interview_metrics, rcex_metrics, timeline_metrics, strategic_insights, data_quality, claim_interpretation, sections_available[], sections_included[], ... }. percentile_rankings and claims_analysis are null where never computed.
400VALIDATION_ERRORexaminer is shorter than 2 characters or longer than 120.
404NOT_FOUNDNo examiner with this id or name.
503CORPUS_UNAVAILABLEThe corpus database is not configured or not reachable.
Request
curl -sS "$BASE/patent-intel/examiner/SMITH%20ADAM%20M" \
  -H "Authorization: Bearer $ANTECEDINT_API_KEY"
Load your key above to run this.
Response (abridged)
{
  "examiner_id": "68a883c3d8cb3a33568ff86d",
  "full_name": "HASAN MOHAMMED A",
  "art_unit": "2872",
  "technology_center": "2800",
  "portfolio": { "total_office_actions_issued": 6280 },
  "percentile_rankings": null,
  "data_quality": {
    "total_applications_analyzed": 2711,
    "office_actions_analyzed": 6280,
    "populations": { "total_applications": 2711, "analysed": 2711, "with_documents": 2707, "with_office_actions": 2605, "with_filing_date": 2490, "three_year_cohort": 187 },
    "volume": { "applications_analyzed": 2711, "tier": "large" },
    "notes": ["percentile_rankings: not computed for this examiner (all three ranking tables were empty upstream)."]
  },
  "claim_interpretation": null,
  "sections_available": ["behavioral_patterns", "rejection_analysis", "applications_with_interviews", "applications_with_rcex", "by_sequence_length", "document_code_breakdown"],
  "sections_included": []
}

Examination guidance

The MPEP and the EPO Guidelines, the graph of how their sections cite each other, and the form paragraphs the USPTO pastes into office actions.

One MPEP section with its rules and required examiner actions

MeteredCached MCP tool get_mpep_section

One MPEP section, as an examiner is required to apply it.

Beyond the section text, each record carries keyRules and examinerActions: what the section obliges, separated from the prose that obliges it. That is usually what a caller holding a rejection actually wants, since the argument is about whether the examiner did what the section required.

Section ids carry dots and parentheses and the punctuation is part of the key, so 601.01(c) is passed through exactly as written.

Path parameters

NameTypeDescription
sectionId reqstring, ^[0-9A-Za-z.()\-]{1,40}$MPEP section id, e.g. 2106 or 601.01(c). Dots and parentheses are part of the id.

Responses

200The section, with content, keyRules, examinerActions, legalReferences, technologyDomains and enrichedSummary.
400VALIDATION_ERRORsectionId is not a well-formed MPEP section id.
404NOT_FOUNDNo MPEP section carries that id.
503CORPUS_UNAVAILABLEThe guidance dataset is not configured or not reachable.
Request
curl -sS "$BASE/guidance/mpep/2106" \
  -H "Authorization: Bearer $ANTECEDINT_API_KEY"
Load your key above to run this.
Response (abridged)
{
  "sectionId": "2106",
  "title": "Patent Subject Matter Eligibility",
  "chapter": "2100",
  "topicCategory": "patentability",
  "keyRules": ["elided"],
  "examinerActions": ["elided"],
  "legalReferences": ["35 U.S.C. 101"]
}

One EPO Guidelines section with its rules and citations

MeteredCached MCP tool get_epo_guideline

One section of the EPO Guidelines for Examination.

Deliberately the same shape as the MPEP route, because the flow that reaches it is the same flow one step later: an applicant with a US rejection usually has a European family member, and an agent that learned one lookup should not have to learn a second.

These records were merged from two source collections that each held half of each section, so a complete document carries both the generated half (keyRules, examinerActions) and the source half (citations, sourceUrl, parentSection, childSections).

Path parameters

NameTypeDescription
sectionId reqstring, ^[0-9A-Za-z.,_ \-]{1,40}$EPO Guidelines section id in any of its written forms: g-ii-3.3, G-II, 3.3, or the graph's epo-g-ii-3-3. All resolve to the same section.

Responses

200The section, with content, keyRules, examinerActions, citations, parentSection, childSections and sourceUrl.
400VALIDATION_ERRORsectionId is not a well-formed EPO section id.
404NOT_FOUNDNo EPO section carries that id.
503CORPUS_UNAVAILABLEThe guidance dataset is not configured or not reachable.
Request
curl -sS "$BASE/guidance/epo/g-ii-3.3" \
  -H "Authorization: Bearer $ANTECEDINT_API_KEY"
Load your key above to run this.
Response (abridged)
{
  "sectionId": "epo-g-ii-3-3",
  "title": "Mathematical methods",
  "part": "G",
  "chapter": "II",
  "keyRules": ["elided"],
  "citations": ["elided"],
  "sourceUrl": "https://www.epo.org/en/legal/guidelines-epc"
}

One office-action form paragraph, with its statute and MPEP section

MeteredCached MCP tool get_form_paragraph

The literal paragraph an examiner pasted into an office action.

This is the sharpest thing in the dataset. A caller holding a rejection has a paragraph number and nothing else, and this turns it into the statute behind it, the MPEP section it rests on, the rejection type it belongs to, and the notes the examiner was given about when to use it. brackets lists the placeholders the examiner had to fill, which is often where the substance of a rejection actually sits.

isAIA and preAIAEquivalent matter for anything filed near the changeover: citing the wrong one is citing law that does not apply to the application.

The paragraph symbol is stripped, so a code copied straight out of a PDF as ¶ 6.11 resolves rather than returning a 404 that reads as "no such paragraph".

Path parameters

NameTypeDescription
code reqstring, ^[¶\s0-9A-Za-z.\-]{1,24}$Form paragraph code, e.g. 6.11 or 7.37.01. A leading is accepted and ignored.

Responses

200The paragraph: title (its heading), template (the text as pasted, placeholders as [1], [2]), brackets, statute, statuteShort, rejectionType, category, isAIA, preAIAEquivalent, mpepSection, examinerNotes, mustFollow (paragraphs that have to appear before this one) and relatedParagraphs. truncated_at_source: true means the stored text ends before the paragraph does; quote it as partial. statute and rejectionType are each null on a majority of rows, and on different rows.
400VALIDATION_ERRORcode is not a well-formed form paragraph code.
404NOT_FOUNDNo form paragraph carries that code.
503CORPUS_UNAVAILABLEThe guidance dataset is not configured or not reachable.
Request
curl -sS "$BASE/guidance/form-paragraph/7.34.10" \
  -H "Authorization: Bearer $ANTECEDINT_API_KEY"
Load your key above to run this.
Response (abridged)
{
  "code": "7.34.10",
  "title": "Indefinite Claim Language: “Such As”",
  "template": "Regarding claim [1], the phrase “such as” renders the claim indefinite because it is unclear whether the limitations following the phrase are part of the claimed invention. See MPEP § 2173.05(d).",
  "statute": null,
  "rejectionType": "indefiniteness",
  "mpepSection": "2175",
  "examinerNotes": "Examiner Note: This form paragraph must be preceded by form paragraph 7.34.01.",
  "mustFollow": ["7.34.01"]
}

Form paragraphs filtered by rejection type or MPEP section

MeteredCached MCP tool find_form_paragraphs

Every form paragraph an examiner could have reached for.

Given a rejection type, this is the set the examiner chose from, which is what an agent needs to tell "they picked the narrow one" from "this was the only option". Filtering by mpepSection answers the reverse: which paragraphs rest on a section you are already arguing about.

At least one filter is required. An unfiltered call would page through everything to no purpose, so the caller has to say which axis they are on rather than receive the whole table by default.

rejectionType takes either of the two vocabularies the corpus holds. The stored label is a word (obviousness, indefiniteness, means_plus_function) and the stored statute is a citation (35 U.S.C. 103(a), 37 CFR 1.52); each is null on a majority of rows, and on different rows. A query on either is expanded to both, so 112(b) reaches the paragraphs labelled indefiniteness as well as the ones citing the statute, and indefiniteness reaches the same set. filter.matched shows the expansion.

Query parameters

NameTypeDescription
rejectionType string, ^[0-9A-Za-z.()_ \-]{1,40}$A statute (102, 103, 112(b), 101, 121, or a CFR rule such as 1.52) or a label (obviousness, anticipation, indefiniteness, enablement, written_description, means_plus_function, abstract_idea, double_patenting, restriction, allowance, drawing_objection). Required unless mpepSection is given.
mpepSection string, ^[0-9A-Za-z.()\-]{1,40}$MPEP section the paragraph rests on, e.g. 706, 707, 2175. Required unless rejectionType is given.
limit integer, 1–100How many paragraphs to return. Defaults to 25.

Responses

200{ results[], count, filter }. filter echoes what was applied and filter.matched what rejectionType expanded to; an unrecognised value returns zero with filter.note listing the vocabulary.
400VALIDATION_ERRORNeither filter was supplied, or one was malformed.
503CORPUS_UNAVAILABLEThe guidance dataset is not configured or not reachable.
Request
curl -sS "$BASE/guidance/form-paragraphs?rejectionType=112(b)&limit=5" \
  -H "Authorization: Bearer $ANTECEDINT_API_KEY"
Load your key above to run this.
Response (abridged)
{
  "results": ["one form paragraph per entry; elided here"],
  "count": 5,
  "filter": {
    "rejectionType": "112(b)",
    "matched": { "rejectionType": ["indefiniteness"], "statute": "35 U.S.C. 112(b)" }
  }
}

One-hop cross-references into and out of a guidance section

MeteredCached MCP tool get_guidance_graph

What a guidance section points at, and what points at it.

One hop, both directions, because they answer different questions. Forward is what else this rule depends on. Backward is what breaks if you misread it, and it is the direction that is hard to get any other way.

Which graph is read off the node id rather than passed separately: ids are mpep-601.01(c) and epo-c-ix-3, so the prefix routes the query. An id with neither prefix is a 404 rather than a guess, because answering an EPO question with US law is worse than answering nothing.

A hub section is cited by hundreds of others, so the fan-out is capped and truncated says which direction hit the cap. A caller seeing exactly limit edges cannot otherwise tell a hub from a coincidence.

Path parameters

NameTypeDescription
nodeId reqstring, ^(mpep|epo)-[0-9A-Za-z.()\-]{1,40}$Graph node id. The prefix selects the corpus: mpep-2106, epo-c-ix-3.

Query parameters

NameTypeDescription
limit integer, 1–200Maximum edges per direction. Defaults to 50.

Responses

200{ node, corpus, outgoing[], incoming[], truncated, limit }. Each edge is { source, target, weight, type, bidirectional }.
400VALIDATION_ERRORnodeId carries no recognised prefix, or limit is outside 1-200.
404NOT_FOUNDNo graph node carries that id.
503CORPUS_UNAVAILABLEThe guidance dataset is not configured or not reachable.
Request
curl -sS "$BASE/guidance/graph/mpep-2106?limit=10" \
  -H "Authorization: Bearer $ANTECEDINT_API_KEY"
Load your key above to run this.
Response (abridged)
{
  "node": { "nodeId": "mpep-2106", "inDegree": 214, "outDegree": 63, "isHub": true },
  "corpus": "mpep",
  "outgoing": [{ "source": "mpep-2106", "target": "mpep-2106.04", "weight": 8, "type": "cites" }],
  "incoming": [{ "source": "mpep-2103", "target": "mpep-2106", "weight": 5, "type": "cites" }],
  "truncated": { "outgoing": false, "incoming": true },
  "limit": 10
}

One USPTO design search code

MeteredCached MCP tool get_design_code

One USPTO design search code.

A classification scheme rather than guidance. It sits in this namespace because it travelled with the same passover, not because it belongs beside the MPEP, and it is documented that way rather than filed somewhere tidier that would imply a relationship these records do not have.

Path parameters

NameTypeDescription
code reqstring, ^[0-9]{2}(\.[0-9]{2}){0,3}$Design search code, e.g. 03.19.17.

Responses

200The code, with descriptions[] (every phrasing the USPTO files it under), major and sub.
400VALIDATION_ERRORcode is not a design search code.
404NOT_FOUNDNo design code carries that value.
503CORPUS_UNAVAILABLEThe guidance dataset is not configured or not reachable.
Request
curl -sS "$BASE/guidance/design-code/03.19.17" \
  -H "Authorization: Bearer $ANTECEDINT_API_KEY"
Load your key above to run this.
Response (abridged)
{
  "code": "03.19.17",
  "descriptions": ["Fish symbol used for religious significance", "Ichthys"],
  "major": "03",
  "sub": "03.19"
}

Errors and quotas

Authentication and quota failures happen before a route runs, so they look the same whichever endpoint you called.

StatusCodeCause
401MISSING_API_KEYNo Authorization header.
401INVALID_AUTH_FORMATThe header is not of the form "Bearer <key>".
401KEY_NOT_FOUNDThe key does not exist, is suspended, or is revoked.
401API_KEY_EXPIREDThe key is past its expiry date.
403IP_NOT_WHITELISTEDThe key has an IP allowlist and the request came from outside it.
429USAGE_LIMIT_EXCEEDEDOver the daily or monthly quota. The body reports the limit it enforced and when it resets.
500AUTH_SYSTEM_ERRORKey validation itself failed. Retry.
503The instance is draining for a deploy. Retry.

Quotas default to 1,000 requests a day and 30,000 a month, set per key when it is issued, and counted per key rather than per IP. Two services sharing a key share its budget.

One inconsistency worth knowing

Two envelopes are in use. Prior-art search answers { success, data } and its errors carry no code field. Patent-space and claim-validation routes answer the payload directly; patent-space errors carry a code, claim-validation errors do not.

Branch on the HTTP status rather than on the presence of a field, and treat code as absent unless the table for that endpoint lists one. We would rather say this than pretend the surface is more uniform than it is.

Something behaving differently from this page is a bug we want to hear about: accelerate@antecedint.com. A wrong or missing record in the data is for your assistant to report with submit_data_feedback; a person reviews it, and an accepted report earns credits. Availability is on the status page.

Try it in the sandbox →