Connects Claude to CourtListener, the Free Law Project's legal research platform, with access to millions of U.S. court opinions, PACER dockets, judge profiles, oral arguments, and citation data. Search case law across federal and state courts, retrieve full case metadata, extract and verify legal citations against a canonical database, and set up alerts for new opinions or docket updates. Built and operated by Free Law Project, a 501(c)(3) nonprofit dedicated to making the law broadly accessible.
You can use CourtListener to:
Search & Summarize Case Law:
"Summarize the majority and dissenting opinions in Dobbs v. Jackson Women's Health Organization."
Verify Citations & Catch Hallucinations:
"Check every case citation in this brief and flag any that don't exist in CourtListener."
Research Judges & Build Profiles:
"Build a profile of Justice Sonia Sotomayor: judicial career, ABA ratings, education, and political affiliations."
Monitor High-Profile Dockets:
"Subscribe me to the United States v. Google LLC antitrust docket (1:20-cv-03010, D.D.C.) and alert me on new filings."
Access RECAP (free PACER archive):
"Show me the RECAP filings from the Sam Bankman-Fried criminal case."
Trace Citation Impact:
"How many opinions have cited Miranda v. Arizona, and what are the most recent?"

