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Saylor Innovations Law Library — Case Law Search
x402
Saylor Innovations Law Library — Case Law Search is a paid API for AI agents from saylorinnovations.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-30).
Search U.S. federal and state court case law by keyword query and retrieve matching case records
Price / call$0.003
Success—
StatusUnknown
How this service works
Case Law Search (U.S. federal + state courts). U.S. case law search across millions of federal and state court opinions (CourtListener): filter by court (scotus, ca9, ...), date range; sort by relevance, newest or most cited. Each case: name, court, date, docket, all reporter citations, times cited, summary, text snippet, opinion and PDF links.
Output
Returns a JSON object containing the echoed search query, an array of matching case law records (each representing a court case), and a total_matches count (which may be null). Each case item in the array contains details about the court decision found.
Example use cases
Finding precedent for a legal brief
“Search case law for federal and state court decisions about 'wrongful termination AND at-will employment' — I'm looking for precedents I can cite in a legal argument.”
Researching Fourth Amendment rulings
“Can you search U.S. court cases for rulings on 'Fourth Amendment AND warrantless search'? I need to understand how courts have decided these cases.”
Investigating IP infringement case law
“Look up court cases involving 'copyright infringement AND fair use' across U.S. federal and state courts — I want to see how judges have ruled on that balance.”
Technical details
Endpoint
GEThttps://saylorinnovations.com/api/law/cases/search?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need to search across U.S. federal and state court case law by keyword, including support for boolean operators and quoted phrases. It is well-suited for legal research tasks where an agent needs to surface relevant court opinions, precedents, or judicial decisions on a given topic. Prefer this over general web search when structured, legal-domain-specific results are needed.
Side effects
- Empty results array if no cases match the query
- total_matches returned as null when count is unavailable
- Malformed boolean query syntax may return unexpected or no results
- Missing required 'q' parameter may result in an error or empty response
- Rate limiting or payment failure at $0.003 per call via x402 protocol
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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