Harvey and Everlaw Connect Legal Reasoning to Governed Evidence

On September 3, 2026, Harvey announced a Model Context Protocol integration with Everlaw that is expected to become available to joint customers in fall 2026. The companies say users will be able to query evidence held in Everlaw from Harvey, including matters with millions of documents, and generate analysis linked back to source material. For law firms and legal departments, the design reflects a broader move from isolated assistants toward AI operating over governed systems of record. Buyers should test permission inheritance, citation fidelity, matter separation and retrieval auditability before treating a connected workflow as equivalent to defensible evidence handling.