CourtListener

official

CourtListener is Free Law Project's legal research platform for U.S. court opinions, PACER dockets, judge profiles, oral arguments, and citation data. Its connector grounds assistants in primary legal records while supporting citation checks and docket-aware research.

GitHub
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What can you do with CourtListener MCP?

  • Search court opinions — Ask for U.S. court opinions by citation, case name, or topic.
  • Retrieve docket details — Get PACER docket information for a specific case, including parties and filings,.
  • Look up judge profiles — Find biographical and judicial data for federal judges.
  • Access oral argument audio — Locate and retrieve oral argument recordings for appellate cases.
  • Verify citations — Check whether a cited case exists and confirm its legal citation.

Hosted MCP Server

npx add-mcp 'https://mcp.courtlistener.com/'

Installs into Claude Code, Codex, Cursor and more

Documentation

CourtListener is Free Law Project's legal research platform for U.S. court opinions, PACER dockets, judge profiles, oral arguments, and citation data. Its connector grounds assistants in primary legal records while supporting citation checks and docket-aware research.

An eligible provider account or plan may be required for authenticated features. Consult the official setup documentation for access requirements and client compatibility.

Setup documentation