The CaseDiver API

Programmatic access to the same verified caselaw database that powers this site: search cases, retrieve full opinions, and check citations from your own applications and workflows.

Try free caselaw search

$29 / month

Includes $29 of API usage each month

$29 of API usage included every month
Case search — 3¢ per search
Case retrieval — 3¢ per retrieval
Cite check — 3¢ per check
The same per-call rates apply to the OpenAI and Claude MCP connectors
Usage beyond the included $29 is billed monthly in arrears

Every call is a flat 3¢ — case search, case retrieval, and cite check alike. Your $29 subscription covers the first $29 of usage (about 966 calls); after that you are billed for what you use, with full line-item transparency.

Endpoints

Case search

Semantic, keyword, boolean, and metadata search across federal and state opinions, with jurisdiction and court filters. 3¢ per search.

Case retrieval

Fetch the full opinion text and structured metadata — holdings, citations, court, and dates — for a specific case. 3¢ per retrieval.

Cite check

Verify whether a citation exists and is still good law, including treatment, subsequent history, and reversal flags. 3¢ per check.

Same rates via MCP

The OpenAI MCP and Claude MCP connectors are billed at the identical 3¢-per-call rates against your subscription.

Ready to integrate?

The full developer reference covers authentication, every endpoint and field, error codes, idempotency, and runnable examples in TypeScript and Python.

Read the API documentation