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MCP live v0.1.0 MCP 2025-11-25 streamable-http

CourtListener

io.github.Vaquill-AI/courtlistener-mcp

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

Uptime
100.0%
1 direct probes · 30d
Response
808ms
last probe
Tools
34
callable
Resources
0
readable
Prompts
0
available
Primary URL
https://courtlistener-mcp.vaquill.ai/mcp/

Tools · 34

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.g., "410 U.S. 113") - Federal Reporter …

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 once.

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 templates to check if a citation appears to be …

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 information including tokens, normalized forma…

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 and short-form citations (like 'id.' refer…

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 optionally queries the CourtListener API for a…

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 can time out on the eCFR side, so narrowi…

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.

How to use

Add to your Claude Desktop / Cursor / Cline MCP config:

{
  "mcpServers": {
    "courtlistener": {
      "url": "https://courtlistener-mcp.vaquill.ai/mcp/",
      "transport": "streamable-http"
    }
  }
}