Court Opinion & Docket Search — CourtListener avatar

Court Opinion & Docket Search — CourtListener

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Court Opinion & Docket Search — CourtListener

Court Opinion & Docket Search — CourtListener

Search US federal court opinions and RECAP dockets by keyword, court, and filing date, via the official CourtListener API (Free Law Project).

Pricing

Pay per usage

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Developer

Timothy Kelvin

Timothy Kelvin

Maintained by Community

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2

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1

Monthly active users

19 hours ago

Last modified

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Search US federal court opinions or RECAP dockets by keyword, court, and filing date. Built on the official CourtListener API from the Free Law Project, the same non-profit source that powers most legal-tech case law search.

Built for legal researchers, litigation-support and collections teams, journalists covering court cases, and anyone doing due diligence that needs to check if a person or company has been party to federal litigation.

Input

{
"query": "antitrust",
"resultType": "opinions",
"court": "scotus",
"filedAfter": "2020-01-01",
"maxResults": 20
}
FieldTypeDescription
querystringKeyword search (case name, party, or legal topic).
resultTypestring"opinions" (case opinions) or "recap_dockets" (federal case filings).
courtstringOptional CourtListener court ID, e.g. "scotus", "ca9".
filedAfter / filedBeforestringOptional date range filter (YYYY-MM-DD).
maxResultsintegerMax results to return (default 20).
apiTokenstringOptional. Your own free CourtListener API token, for a higher rate limit than anonymous access.

Output

{
"resultType": "opinion",
"caseName": "Trump v. Slaughter",
"court": "Supreme Court of the United States",
"courtId": "scotus",
"docketNumber": "25-332",
"dateFiled": "2026-06-29",
"citation": [],
"citeCount": 0,
"judge": "John G. Roberts",
"snippet": "...",
"downloadUrl": "https://www.supremecourt.gov/opinions/25pdf/25-332_qn12.pdf",
"absoluteUrl": "https://www.courtlistener.com/opinion/10881681/trump-v-slaughter/"
}

How it works

Direct calls to CourtListener's official public REST API (courtlistener.com/api/rest/v4/search/). Works anonymously for casual use; CourtListener's own rate limits apply, higher volume needs your own free API token. No proxy, no scraping.

Pricing note

Billed per search, not per result returned — a broad search that returns 200 results costs the same as one that returns 2.