CourtListener MCP Server

Example Use Cases

• 1

  Perform natural language legal case searches using semantic embeddings.

• 2

  Verify legal citations to ensure accuracy and prevent hallucinations.

• 3

  Comprehensive access to case metadata, judge information, oral arguments, and court details.

Description

This MCP server enables natural language legal research using CourtListener's semantic search API, combining vector embeddings with traditional keyword search for precise results. It offers 12 tools covering millions of cases, judges, courts, and oral arguments, supporting citation verification to prevent AI hallucinations. Designed for local use with OpenCode and Claude Code clients, it is production-ready with error handling, rate limiting, and async operations.