About CourtListener (US case law)
Search opinions and dockets across federal and state courts, look up and resolve citations, and read opinion text. The largest free US case-law corpus.
Questions you can ask CourtListener
Type them into Kahubi’s chat once CourtListener is connected.
“Find US federal appellate opinions on facial recognition and the Fourth Amendment.”
What comes back: Opinions with case name, court, date and citation, and the opinion text you choose to read.
“Resolve the citation 410 U.S. 113 and summarise the holding.”
What comes back: The matched opinion with full citation and a summary drawn from its text.
CourtListener MCP tools
The 14 tools the CourtListener server offers to Kahubi. The assistant picks the right one for each question.
courtlistener_search_opinionsFull-text search across 9M+ written US court opinions with field-level filtering.
courtlistener_get_opinionFetch text and metadata for an opinion cluster by cluster ID.
courtlistener_get_citationsRetrieve the citation network for an opinion cluster.
courtlistener_lookup_citationResolve legal citations (e.g., "410 U.S.
courtlistener_search_docketsSearch RECAP federal court dockets.
courtlistener_get_docketFetch docket metadata and one entries page by docket ID.
courtlistener_get_partiesFetch a page of parties and their attorneys of record for a RECAP federal docket by docket ID.
courtlistener_search_judgesSearch judge/person records by name, appointing president, court, political affiliation, or demographic.
Show 6 more
courtlistener_get_judgeFetch full biographical profile for a single judge: positions on record - judicial appointments across all courts plus non-judicial roles - education, political affiliations, an...
courtlistener_lookup_courtsList courts with optional filtering by jurisdiction type, active/inactive status, and scraper coverage.
courtlistener_search_oral_argumentsSearch appellate oral argument audio recordings - the largest public collection of oral argument audio.
courtlistener_get_oral_argumentFetch an oral argument recording by audio_id from courtlistener_search_oral_arguments.
courtlistener_search_financial_disclosuresSearch federal judicial financial disclosure filings - the annual reports judges file on investments, gifts, debts, outside positions, and income.
courtlistener_get_financial_disclosureFetch a judicial financial disclosure by disclosure_id from courtlistener_search_financial_disclosures.
Using CourtListener in Kahubi
- Community server. An open-source server maintained by the MCP community. Kahubi tests it with live queries before listing it and health-checks it regularly.
- Cited, checkable answers. Results are treated as retrieved material and cited with the source’s own identifiers, so you can open every record the answer relied on.
- Your files stay private. Only the search the assistant writes for your question is sent to CourtListener.
More law & politics sources
- EUR-Lex (EU law and case law)EU legislation, treaties, preparatory acts and Court of Justice case law with their amendment graph.
- Riksdagen (Swedish parliament open data)Bills, committee reports, motions, protocols, SOU reports and SFS statutes with full text.
- US Federal RegisterFederal rules, proposed rules, notices and presidential documents since 1994.
- Congress.govUS bills, laws, members, committees, votes, nominations and CRS reports.
- SEC EDGARUS company filings: 10-K, 10-Q, 8-K, insider transactions and institutional holdings.
- CORDIS (EU research projects)EU-funded projects and results from FP7, Horizon 2020 and Horizon Europe.