aid: casetext
name: Casetext
description: Casetext is a legal technology company founded in 2013 by Jake Heller,
  Joanna Huey, and Laurence Pfeffer and headquartered in San Francisco, California.
  The company built one of the earliest neural-search engines for U.S. case law (Parallel
  Search) and a broader research platform covering federal and state cases, statutes,
  regulations, and secondary sources, with citator signals delivered through its SmartCite
  feature. Casetext is best known for CoCounsel, a generative-AI legal assistant released
  in March 2023 and originally built on top of OpenAI's GPT-4, that automates document
  review, deposition preparation, contract analysis, legal research memos, and database
  queries for law firms and in-house legal teams. Companion products include AllSearch,
  a private document search tool that lets firms run Parallel Search across their
  own document collections, and Compose, an automated brief-drafting product. Thomson
  Reuters acquired Casetext in June 2023 for $650 million in an all-cash deal that
  closed in August 2023, and CoCounsel has since been integrated across Thomson Reuters'
  Westlaw, Practical Law, and HighQ product lines as the company's flagship legal-AI
  assistant. The Casetext platform is sold as a SaaS subscription to law firms, corporate
  legal departments, and government agencies; there is no public developer API, SDK,
  or open-source release, and the casetext GitHub organization contains only archived
  research forks (transformers, ELECTRA, pgvector, FiD) plus a handful of internal
  infrastructure repos that were archived after the Thomson Reuters acquisition.
type: Index
position: Provider
access: 3rd-Party
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
tags:
- Legal
- Legal Tech
- Legal Research
- Case Law
- Legal AI
- Generative AI
- CoCounsel
- Parallel Search
- AllSearch
- Compose
- SmartCite
- Document Review
- Contract Analysis
- Deposition Preparation
- Thomson Reuters
url: https://raw.githubusercontent.com/api-evangelist/casetext/refs/heads/main/apis.yml
created: '2026-05-25'
modified: '2026-05-25'
specificationVersion: '0.20'
apis: []
common:
- type: DomainSecurity
  url: security/casetext-domain-security.yml
- type: Website
  url: https://casetext.com
- type: CoCounsel
  url: https://casetext.com/cocounsel/
- type: ParallelSearch
  url: https://casetext.com/parallel-search/
- type: AllSearch
  url: https://casetext.com/allsearch/
- type: Compose
  url: https://compose.law/
- type: SmartCite
  url: https://casetext.com/smartcite/
- type: Pricing
  url: https://casetext.com/pricing/
- type: Customers
  url: https://casetext.com/customers/
- type: About
  url: https://casetext.com/about/
- type: Careers
  url: https://casetext.com/careers/
- type: Blog
  url: https://casetext.com/blog/
- type: Contact
  url: https://casetext.com/contact/
- type: Login
  url: https://casetext.com/signin/
- type: ParentCompany
  url: https://www.thomsonreuters.com
- type: Acquisition
  url: https://www.thomsonreuters.com/en/press-releases/2023/june/thomson-reuters-to-acquire-casetext-an-ai-leader-for-legal-professionals.html
- type: GitHub
  url: https://github.com/casetext
- type: Twitter
  url: https://twitter.com/casetext
- type: LinkedIn
  url: https://www.linkedin.com/company/casetext
- type: Crunchbase
  url: https://www.crunchbase.com/organization/casetext
- type: Wikipedia
  url: https://en.wikipedia.org/wiki/Casetext
- url: graphql/casetext-graphql.md
  type: GraphQL
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com