Syfert Legal Research

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npx agentmarket install connector/syfert-com-legal-research

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What this server can do and what it asks for, from its tool list and install config. Checked Oct 25, 2026.

Tools

18 read · 1 write · 0 delete

Secrets

1 (API keys, tokens or passwords)

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Hosted (remote endpoint)

Tools (19)

As the server listed them on Oct 25, 2026. Descriptions are the server’s own words; hidden characters are shown as [U+…].

• check_briefAudit every citation in a briefread-only

  Audit ALL citations in a draft brief, motion, or memo at once (wraps syfert.com Brief Check). Extracts every reporter citation, verifies each exists, checks the case name the document claims against the real case (hallucination detection), checks each quoted passage word for word against the cited opinion's own text (misquote = not in that opinion; unquoted_by_courts = the text could not be compared and no court has quoted those words from the case: check it with verify_quote), traces an unmatched quote to the case the language actually ORIGINATES in (quote_origin: attribute with "(quoting …)"…

• check_citationCheck a citationread-only

  Verify a legal citation actually exists before using it. CASES: returns the real case at that citation, its treatment flag, and whether the name matches: expected_case_name, or else a case name written in the citation itself ("Roe v. Wade, 410 U.S. 113"). This catches hallucinated or miscopied citations. A reporter cite that is not indexed comes back with a verdict, and the verdict is what to act on (MCP13_20260925): exists_unindexed = the case is REAL (a court in the corpus prints this exact citation, see cited_by_corpus, or the case is found by name and year, see name_candidates) and only ou…

• context_detectorLay the cited opinion next to the brief's sentenceread-only

  Does the cited case actually say what the brief says it says? Call it after check_brief for every cite you rely on whose support_check says available, or for any sentence you want to test against the case it cites. Give the citation (reporter cite with its first page, or cluster_id), the sentence as written, and the pin page: it returns the case (bluebook, cluster_id, url), pinned_window = about 2,500 characters of the opinion around the pinned page's best word match, best_window = the same around the opinion's best match when that is another page, lexical overlap scores, and an instruction fo…

• export_documentSave a readable copy of a case or statuteread-only

  Optional. If your client can save files locally and you want a readable copy of a case or statute, this returns the complete document to save; otherwise use get_case / get_statute as before. The document is the syfert.com page as the website renders it (caption, headings, footnotes, star-page markers such as [*551], links to the cited cases): Markdown with YAML front matter (default) or one self-contained HTML file. Returns filename, format, bytes, document and note; the MCP cannot write to disk, so saving document under filename is up to you. A case: cluster_id, or citation (+ case_name). A s…

• find_authorityFind the case to cite for a propositionread-only

  Find the case to cite for a proposition. Paste the proposition or the language you need authority for VERBATIM; do not convert it to keywords. The result names the source case to cite (source_case), the verbatim passage, and how many courts have adopted it (quoted_by_cases); match_kind says how it matched: exact_phrase (the passage contains your words), relaxed (it shares your distinctive words), proposition (a rule later courts cite that case for). A miss means no court has quoted or been cited for that wording; try find_issues for the doctrine, or search_cases with 3-4 distinctive words. Rou…

• find_caseFind one case by citation or captionread-only

  Fast direct lookup: give a citation or a case caption and get THE case (or 'not decisive' with up to 5 candidates) without a full-text search. Use search_cases for topics and words. A citation ("384 U.S. 436", "Miranda v. Arizona, 384 U.S. 436, 444 (1966)", "449 F. App'x 901", "2019-Ohio-10") resolves through the reporter index; when a case name is given (in the query or as expected_case_name) and the case at that citation carries a different name, the answer is NOT decisive (problem name_mismatch) and names the case that is really there. A caption ("Miranda v. Arizona", or one distinctive nam…

• find_courtFind a court idread-only

  Resolve a court name to court_id values usable in the search_cases court filter. Also resolves whole GROUPS of courts (tribal courts, veterans, bankruptcy, all U.S. district courts) to the single aggregate token that filters on all of them: see court_groups in the result.

• find_issuesResearch an issueread-only

  ENTRY BY ISSUE. Use this FIRST when the question arrives as facts or an issue rather than a case name ("can the appellate court affirm on a ground the trial court never reached", "impact rule emotional distress", "Fabre defendant"). Returns (1) the doctrine as courts in that STATE actually name it, with the cases on EACH side (followed_by / questioned_by, from how each citing opinion treated the case), example sentences judges wrote, the statutes those opinions construe, and every state where the phrase is alive with its year span (a doctrine retained in one state and abandoned elsewhere shows…

• find_related_casesRelated cases in the same doctrinal lineread-only

  Expand research from one good case: returns the doctrinal family it belongs to: the line of frequently co-cited cases around an anchor authority (curated set of ~1,500 major doctrinal lines; landmark cases only). Use when you have one on-point case and need the rest of the line. A case in no family gets its own most co-cited cases instead (related_source "co_citation"; MCP22_20260927).

• get_caseRead a caseread-only

  Fetch one case: metadata, parallel citations, treatment flag, and full opinion text (paginated via offset/max_chars). cited_by is CourtListener's citation count; for a decision filed as several twin clusters it is summed over them (cited_by_note says so), and a duplicate or stub twin id is answered with its survivor (note says so). Citations inside the returned text are checked against the reporter index (embedded_citations); citation_warnings names any the court itself got wrong. Identify the case by cluster_id (from search_cases results) or by reporter citation. find_text returns passages: u…

• get_citing_casesCases citing this caseread-only

  Full citator list: every ranked case citing this one, with judge-written parentheticals (usable verbatim in a brief), verbatim quotes, pin cites, and the citing court's own Bluebook signal. Filter by flag color. Best for FINDING SUPPORTING AUTHORITY and parentheticals; for comprehensive negative-treatment checking use get_treatment (this list covers only each case's top-ranked ~50 citers).

• get_propositionsWhat is this case cited for?read-only

  What is this case actually cited FOR? Returns the distinct legal propositions courts cite the case for (headnote-grade), each with its OWN treatment flag and counts. A case can be good law on one proposition and overruled on another. Use before citing a case for a specific point, and to find the strongest proposition to cite it for. passage is the opinion's own wording of the proposition with its star_page; passage null means citing courts paraphrase it. Pass proposition (your use of the case) to get proposition_match, the one proposition it matches, and proposition_note (MCP14_20260925). Quot…

• get_statuteRead a statute or ruleread-only

  Fetch the full text of a statute, rule, or code section: the current codification in the edition this corpus holds. Every answer carries currency (edition, current_through, current_through_basis, last_verified, text_last_changed = when our copy last changed, last_amended_year, effective_date, history_note, status, successor, versions_available) and temporal_note. OPERATIVE DATE: statute text is the edition this corpus holds, not the law on every date. For a crime, a contract, a limitations period or a procedural step, establish the operative date first (offense, contract, accrual or filing dat…

• get_treatmentIs this case still good law?read-only

  Is this case still good law? Returns the Syfertize treatment flag (red = overruled/superseded, yellow = questioned/distinguished, green = followed, procedural = cert/rehearing denied) plus the citing cases behind each signal with quoted context. A case can be green overall and red on the proposition you need it for (MCP14_20260925): propositions_summary lists the propositions courts cite it for (most-cited first), each with its OWN flag; pass proposition (your use of the case) and proposition_match returns the one that matches, with its negative_citers, and treatment.proposition_note states th…

• search_casesSearch case lawread-only

  Full-text search over 10.7M U.S. court opinions (all states + federal, via syfert.com). Call this to find case law on a topic, locate a case by name, or find cases citing a statute. Routing: a proposition or quoted language -> find_authority (pasted verbatim); a doctrine name or fact pattern -> find_issues; a party name, statute number or keywords -> search_cases. Each hit carries bluebook and url (snippet up to 240 chars); a hit whose snippet quotes an earlier case carries passage_origin, the case to cite for that language. A q that is one citation or an "X v. Y" caption naming one case decis…

Signals

Last release

Oct 11, 2026 (17 days ago)

Details

Registry name

com.syfert/legal-research

Version

1.6.0

Auth

Bearer token

License

License unknown

Website

syfert.com/mcp/

First seen

Oct 24, 2026

Last checked

Oct 24, 2026

Source

Official MCP Registry