Courtlistener Mcp Server

CourtListener sits on 9 million US court opinions and this server exposes the full dataset through 12 tools. You can full-text search opinions with field-level filters, pull complete case text with all opinion variants (majority, concurrence, dissent), and traverse citation networks in both directions to map precedent chains. It also covers RECAP federal dockets with party and attorney search, judge biographical records including appointment history and financial disclosures, and oral argument audio with transcripts. The free tier gives you 125 requests per day, which is enough for targeted research but tight for deep citation traversal. Runs over stdio or as a hosted HTTP endpoint at courtlistener.caseyjhand.com/mcp.