CoCounsel
The industry-leading AI for legal professionals — research, analysis, and drafting in one platform
Enterprise·All audiences·Powered by Thomson Reuters·API available
Key strengths
Grounded in authoritative Westlaw & Practical Law contentIntegrated research, drafting, and analysis in one workflowAgentic AI for complex multi-step legal tasksTrusted by law firms, corporations, and government agenciesCitation-backed, verifiable AI outputs
Enterprise pricing
San Francisco, USA
Founded 2013
No ratings yet
Technical Integration & API Usage
CoCounsel and the broader Thomson Reuters AI platform provide developer access through the Thomson Reuters Developer Portal, enabling firms and enterprises to embed AI capabilities into custom workflows.
Key Integration Points
- REST APIs: Query Westlaw content, retrieve case law, statutes, and secondary sources programmatically.
- Agentic AI SDK: Trigger multi-step legal research or document analysis tasks via API calls and receive structured, citation-backed responses.
- HighQ Integration: CoCounsel connects with HighQ for secure document collaboration, workflow automation, and client portals.
- Legal Tracker: API-level integration with Legal Tracker enables matter management data to flow into AI-assisted spend analysis and reporting.
Example API Call (Conceptual)
POST /v1/cocounsel/research
Authorization: Bearer {API_KEY}
Content-Type: application/json
{
"query": "What is the standard for preliminary injunctions in the Ninth Circuit?",
"jurisdiction": "9th-circuit",
"sources": ["westlaw", "practical-law"]
}
Key Parameters
query– Natural language legal questionjurisdiction– Target jurisdiction for research scopingsources– Array of content sources to ground the responsedocument– (Optional) Upload a document for analysis or drafting context
Responses include structured citations, confidence indicators, and source links back to Westlaw or Practical Law for attorney verification.