Global content and technology company Thomson Reuters has announced an expanded partnership with AI firm Anthropic, integrating Claude directly into its legal AI system CoCounsel Legal through a new Model Context Protocol (MCP) integration. This connection allows lawyers to seamlessly invoke CoCounsel Legal's authoritative legal content and professional workflows within the Claude environment, enabling a smooth transition from exploration to execution while upholding the professional standards required in legal work.
At the heart of this integration is the introduction of Trust Grade AI Standards—Thomson Reuters' benchmark for accuracy, accountability, and trustworthiness in the legal AI space. With the MCP integration gaining traction in the legal market, Thomson Reuters has redefined these standards: lawyers can now access full CoCounsel Legal workflows—including trusted content from Westlaw and Practical Law—directly within Claude. Meanwhile, the next-generation CoCounsel Legal is being rebuilt on Anthropic's Claude Agent SDK, enabling the system to autonomously plan, select tools, retrieve authoritative content, and adjust in real time within workflows—truly delivering on the vision of “empowering legal work with trust-grade systems.”
