courtlistener-mcp-server
io.github.cyanheads/courtlistener-mcp-serverSearch US court opinions, federal dockets, judges, citations, and oral arguments via CourtListener.
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Tools · 14
Full-text search across 9M+ written US court opinions with field-level filtering. Returns opinion cluster summaries with case metadata, citations, matched text snippets, and the individual opinion var…
Fetch text and metadata for an opinion cluster by cluster ID. Returns majority, concurrence and dissent variants with raw HTML and readable plain text, variants_completion for source coverage, and doc…
Retrieve the citation network for an opinion cluster. Supports two directions: "cited_by" (opinions that cite this one — measures precedential influence) and "citing" (opinions this one cites — reveal…
Resolve legal citations (e.g., "410 U.S. 113", "93 S. Ct. 705") to opinion cluster IDs and case metadata. Enables workflows that start from a known citation rather than a search query. CourtListener e…
Search RECAP federal court dockets. Query terms match case name, docket number, party, and attorney names; filters narrow by party name, court, and filing date. RECAP is a crowd-sourced mirror of PACE…
Fetch full docket metadata and entry list for a single federal case by docket ID. Returns all available docket entries with document availability status. Documents with is_available=true have a RECAP-…
Fetch a page of parties and their attorneys of record for a RECAP federal docket by docket ID. Returns each party's name, role (Plaintiff, Defendant, Petitioner, Respondent, etc.), and their attorneys…
Search judge/person records by name, appointing president, court, political affiliation, or demographic. Returns biographical data, current position, and appointment summary. Use courtlistener_get_jud…
Fetch full biographical profile for a single judge: positions on record — judicial appointments across all courts plus non-judicial roles — education, political affiliations, and ABA ratings. The posi…
List courts with optional filtering by jurisdiction type, active/inactive status, and scraper coverage. Primarily used to discover court IDs for use in search and filter parameters across all other co…
Search appellate oral argument audio recordings — the largest public collection of oral argument audio. Returns recording metadata with two direct MP3 links per result (download_url at the originating…
Fetch an oral argument recording by audio_id from courtlistener_search_oral_arguments. Returns case metadata, panel IDs, duration, MP3 URL, docket and available transcript. Oversized text or metadata …
Search federal judicial financial disclosure filings — the annual reports judges file on investments, gifts, debts, outside positions, and income. Filter by judge (person ID from courtlistener_search_…
Fetch a judicial financial disclosure by disclosure_id from courtlistener_search_financial_disclosures. Returns metadata, counts and typed line items with coded values decoded to dollar ranges. Select…
Resources · 1
Static reference guide for CourtListener court IDs, jurisdiction type codes, search type codes, and rate limit information. Read this before building queries to find the correct court ID and jurisdict…
courtlistener://reference/courts
Prompts · 1
Generate a structured legal research plan for a given legal topic or question. Produces a step-by-step workflow using CourtListener tools to find relevant case law, trace precedent chains, and surface…
How to use
Add to your Claude Desktop / Cursor / Cline MCP config:
{
"mcpServers": {
"courtlistener-mcp-server": {
"url": "https://courtlistener.caseyjhand.com/mcp",
"transport": "http"
}
}
}