CourtListener
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. Suited for attorneys, legal researchers, journalists, academics, and pro se litigants who need fast, reliable access to primary legal sources.
View in the Claude registry- Integration type
- Connector
- Verification status
Verified connector- Platform
- Claude
- Primary Subcategory
- Legal Research Engines
- Brand
- CourtListener
- Access
- Account required
- First tracked
- 2026-05-11
- Tool count
- 14
- Geography
- US
The Primary Subcategory used for this profile’s headline score.
Claude Discoverability Score
Live · refreshed daily. Last refreshedCourtListener in Legal Research Engines
What we measure
One core score. Three important factors to discoverability.
- Sets the score
Picked
· 100/100 - Diagnostic
Found
· 45.1/100 - Diagnostic
Positioned
· 42.4/100
Competing in Claude Legal Research Engines
View CategoryWhat does 100/100 mean?
100 is CourtListener's rounded picker appearance rate. It appeared in the connector picker, or Claude invoked it directly, in 100% of contested conversations. All three measures are important to discoverability: Picked determines the headline score, Found shows how often Claude found CourtListener in connector search, and Positioned shows where it appeared in the picker.
CourtListener is in the top band. The job now is keeping it there.
FoundDiagnostic
Whether Claude found your Connector in connector search. It must be Found before it can reach the picker, but the score counts picker appearances—not search results.
PickedMain score
How often your Connector appeared in the picker, or Claude invoked it directly, across contested conversations. This percentage is the Discoverability Score; the headline number is rounded.
PositionedDiagnostic
What position your Connector appeared in when it was shown in the picker. This shows prominence, but it does not affect the score.
14 tools agents can invoke
How do I improve a Verified connector's discoverability?
The levers are the listing surface agents actually read: names, descriptions, keywords, tool metadata, and registry health. Which lever matters depends on where discovery breaks, which is what continuous measurement shows.
What are CourtListener alternatives on Claude?
As of 2026-08-14, CourtListener competes with CoCounsel Legal, Midpage Legal Research, Descrybe Legal Engine, Trellis, Legal Data Hunter, Courtroom5, Jus AI by Jus Mundi (Light Mode), Alizé, BIA Edge, Citare IA, CiteLaw, Courrt, DingDuff, DirectCase Legal Search, DocketBird, FedMCP, GovQuery, JUDY, Juridata, Jusratio, JusticeNow Library, Laki.ai, Lawstronaut, LegalInk AI — Inka, LibreJustice, Policy Doctor, Simpliciter, TaxGraph, Trifolia, TrustFoundry Legal Search and Reasoning, USLege, Vasara in Claude Legal Research Engines, ranked by public Discoverability Score.
Where does CourtListener rank in Legal Research Engines on Claude?
As of 2026-08-14, CourtListener ranks #2 of 33 in Claude Legal Research Engines with a Discoverability Score of 100/100 (Winning).
Where is this profile measured?
This profile uses the geography attached to the latest public registry snapshot: US. Locale tags are intentionally omitted.