CourtListener

Name: CourtListener
Author: Vaquill-AI

MCP serverMCP

MCP for CourtListener: US federal and state opinions, dockets, judges, plus eCFR regulations.

by Vaquill-AIrepository ↗v0.1.0

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30-day availability4/4 checks ok

30 days agotoday

Tools observed via MCP handshake

status — Check the status of the CourtListener MCP server. Returns: A dictionary containing server status, system metrics, and service information.
search_opinions — Search case law opinion clusters with nested Opinion documents in CourtListener.
search_dockets — Search federal cases (dockets) from PACER in CourtListener.
search_dockets_with_documents — Search federal cases (dockets) with up to three nested documents. If there are more than three matching documents, the more_docs field will be true.
search_recap_documents — Search federal filing documents from PACER in the RECAP archive.
search_audio — Search oral argument audio recordings in CourtListener.
search_people — Search judges and legal professionals in the CourtListener database.
get_opinion — Get a specific court opinion by ID from CourtListener.
get_docket — Get a specific court docket by ID from CourtListener.
get_audio — Get oral argument audio information by ID from CourtListener.
get_cluster — Get an opinion cluster by ID from CourtListener.
get_person — Get judge or legal professional information by ID from CourtListener.
get_court — Get court information by ID from CourtListener.
citation_lookup_citation — Look up a legal citation to find the opinion it references in CourtListener. This tool accepts various citation formats including: - U.S. Reporter citations (e
citation_batch_lookup_citations — Look up multiple legal citations in a single request. This is more efficient than making individual requests for each citation. Accepts up to 100 citations at
citation_verify_citation_format — Verify if a citation string is in a valid format using citeurl's advanced parsing. This tool performs validation using citeurl's comprehensive citation templat
citation_parse_citation_with_citeurl — Parse a legal citation using citeurl's advanced citation recognition. This tool uses the citeurl library to parse legal citations and extract structured inform
citation_extract_citations_from_text — Extract all legal citations from a block of text using citeurl. This tool finds and parses all legal citations within a given text, including both long-form an
citation_enhanced_citation_lookup — Enhanced citation lookup combining citeurl parsing with CourtListener data. This tool first uses citeurl to parse and validate the citation format, then option
ecfr_list_titles — List all 50 CFR titles with their latest amended/issue dates and status.
ecfr_get_title_versions — List the available content versions (issue dates) for one CFR title.
ecfr_get_title_structure — Get the full hierarchical structure (title -> section) of a CFR title on a date.
ecfr_get_ancestry — Get the ancestry chain (title -> ... -> node) for a CFR node on a date.
ecfr_get_source_xml — Fetch the source regulation TEXT (XML) for a CFR node on a snapshot date. Pass a part or section to scope the request. Fetching an entire large title at once c
ecfr_list_agencies — List all agencies that appear in the CFR, with their title/chapter references.
ecfr_list_all_corrections — List CFR corrections, optionally filtered by title and/or effective date.
ecfr_list_corrections_by_title — List all corrections for a single CFR title.
ecfr_search_regulations — Full-text search over federal regulations, returning matching sections with hierarchy.
ecfr_get_search_count — Get the total number of CFR sections matching a search query.
ecfr_get_search_summary — Get summary details (counts + metadata) for a CFR search query.
ecfr_get_title_search_counts — Get search result counts broken down by CFR title.
ecfr_get_daily_search_counts — Get search result counts broken down by date (daily histogram).
ecfr_get_hierarchy_search_counts — Get search result counts distributed across the CFR hierarchy.
ecfr_get_search_suggestions — Get search-term suggestions for a partial CFR query.

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Official MCP Registryio.github.Vaquill-AI/courtlistener-mcp

first seen 2 d ago · fetched 2 d agoopen ↗

Field history (6 recent events)

2 d ago · declared · summary → "MCP for CourtListener: US federal and state opinions, dockets, judges, plus eCFR regulations."
2 d ago · declared · description → "MCP for CourtListener: US federal and state opinions, dockets, judges, plus eCFR regulations."
2 d ago · declared · publisherName → "Vaquill-AI"
2 d ago · declared · repoUrl → "https://github.com/Vaquill-AI/courtlistener-mcp"
2 d ago · declared · version → "0.1.0"
2 d ago · declared · protocols → ["mcp"]

when	check	result	http	latency	detail
7 h ago	mcp initialize	ok	200	445 ms	server CourtListener MCP Server 3.4.3 · protocol 2025-06-18 · 34 tools
14 h ago	mcp initialize	ok	200	339 ms	server CourtListener MCP Server 3.4.3 · protocol 2025-06-18 · 34 tools
22 h ago	mcp initialize	ok	200	235 ms	server CourtListener MCP Server 3.4.3 · protocol 2025-06-18 · 34 tools
29 h ago	mcp initialize	ok	200	443 ms	server CourtListener MCP Server 3.4.3 · protocol 2025-06-18 · 34 tools
2 d ago	mcp initialize	ok	200	630 ms	server CourtListener MCP Server 3.4.3 · protocol 2025-06-18 · 34 tools
2 d ago	mcp initialize	ok	200	281 ms	server CourtListener MCP Server 3.4.3 · protocol 2025-06-18 · 34 tools

CourtListener

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