# Casetext

> RETIRED BRAND — NOT A LIVE API PROVIDER. Casetext was a legal-technology company founded in
> 2013 (Jake Heller, Joanna Huey, Laurence Pfeffer, San Francisco) that built an early neural
> search engine for U.S. case law (Parallel Search), the SmartCite citator, the AllSearch
> private-document search tool, the Compose brief-drafting product, and CoCounsel — a
> generative-AI legal assistant released in March 2023 on OpenAI's GPT-4. Thomson Reuters
> acquired Casetext for $650 million in cash, closing 2023-08-17, and retired the standalone
> platform on 2025-04-01. As of 2026-08-10 every path on casetext.com returns HTTP 410 Gone
> and the apex redirects to thomsonreuters.com/en/cocounsel.

This file is GENERATED by API Evangelist from the catalog profile. Casetext never served an
llms.txt of its own — `https://casetext.com/llms.txt` returns 410.

## Status

- State: retired / absorbed into Thomson Reuters
- Acquisition closed: 2023-08-17 ($650M cash)
- casetext.com began redirecting to the Thomson Reuters CoCounsel page: 2025-02-01
- CoCounsel 1.0 access on the Casetext platform ended: 2025-03-31
- Standalone platform shut down: 2025-04-01
- Successor product: Thomson Reuters CoCounsel / CoCounsel Legal, inside the Westlaw ecosystem

## API surface

There is none, and there never was a public one.

- No OpenAPI, Swagger, GraphQL SDL, AsyncAPI, or Postman collection was ever published.
- No developer portal, API reference, API keys, or webhooks.
- No client SDKs. The 15 npm packages Casetext published under github.com/casetext are
  general-purpose JavaScript utilities (Firebase wrappers, a Quill delta renderer, an FNV
  hash, a PEG.js importer, a local Lambda runner, a cron scheduler), not API clients. The
  most recent release is `ultracron@0.0.7`, published 2018-06-08. Every backing repository
  is archived.
- api.casetext.com, developer.casetext.com, docs.casetext.com, app.casetext.com and
  cocounsel.casetext.com do not resolve (NXDOMAIN).
- Every `/.well-known/` path returns 410, including agent-card.json and agent.json.

If you are looking for a machine-readable legal-research contract, this is a dead end. Look
at the Thomson Reuters profile instead — the capability moved there.

## Catalog

- APIs.json profile: https://raw.githubusercontent.com/api-evangelist/casetext/refs/heads/main/apis.yml
- Website (redirects): https://casetext.com
- Successor: https://www.thomsonreuters.com/en/cocounsel
- GitHub organization (all repositories archived): https://github.com/casetext
- Wikipedia: https://en.wikipedia.org/wiki/Casetext
- Crunchbase: https://www.crunchbase.com/organization/casetext

## Artifacts in this profile

- lifecycle/casetext-lifecycle.yml — the retirement timeline and the 410 evidence
- packages/casetext-packages.yml — 15 first-party npm packages, 0 API clients, all stale
- well-known/casetext-well-known.yml — recorded absence across every /.well-known/ path
- security/casetext-domain-security.yml — TLS/HSTS/DNSSEC/SPF/DMARC on the surviving domain
- plans/casetext-plans-pricing.yml — plan_count: 0, pricing page is 410
- rate-limits/casetext-rate-limits.yml — limit_count: 0, no API to limit
- _fabricated/graphql/ — a conceptual GraphQL schema authored by API Evangelist, quarantined
  2026-08-10 because it was wired as if Casetext published it. It did not.

## Corrections

Thomson Reuters or a former Casetext maintainer can correct anything here by opening an issue
at https://github.com/api-evangelist/casetext.