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Legal Research API Free

Case.law Access Project API

Free API providing access to millions of US court cases for building custom citation prediction models.

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Overview

The Case.law Access Project API offers free, bulk access to over 6.5 million US court cases. It’s ideal for developers and researchers who want to build custom citation prediction tools. The API returns JSON with case metadata, full text, and citations. Rate limits apply but are generous for non-commercial use.