ChatGPT SearchSep 27, 2026
CourtListener is particularly useful as a case-law source: it exposes legal research APIs, citation lookup, and citation relationships, and currently covers millions of opinions across many jurisdictions.
Data as of Oct 14, 2026Based on 10,624 AI responses
Reviewed by Dimitry Apollonsky
AI summary
CourtListener is a free legal research website that hosts millions of federal and state court opinions and provides tools for researching case law and monitoring legal developments.
Products
<1%
of 10,624 answers across CourtListener’s markets · since Jul 5
The market map
Legal Research & AI Contract AnalysisShare of answers in Legal Research & AI Contract Analysis each week · 318 answers since Jul 5
Each engine’s share of its own answers across CourtListener’s markets · since Jul 5
Mentioned in
Where CourtListener ranks in AI
Question: What are the best online legal research tools for a solo practitioner?
Google AI ModeAug 22, 2026
CourtListener (Free Law Project): A fantastic, community-driven database
Question: I need a RAG (Retrieval Augmented Generation) framework optimized for legal citations.
ChatGPT SearchSep 19, 2026
CourtListener is particularly useful for U.S. case law because its API exposes case-law data, a citation graph, and citation-lookup/verification functionality.
courtlistener.com 18%Other sites 82%
Excerpts where CourtListener appeared in the AI's answer
CourtListener — particularly useful for opinions and federal court materials.
CourtListener (Free Law Project): A fantastic, community-driven database
Excerpts where CourtListener appeared in the AI's answer
CourtListener is particularly useful as a case-law source: it exposes legal research APIs, citation lookup, and citation relationships, and currently covers millions of opinions across many jurisdictions.
CourtListener is particularly useful for U.S. case law because its API exposes case-law data, a citation graph, and citation-lookup/verification functionality.