What is a patent MCP connector?

A patent MCP connector is a server built on the Model Context Protocol (MCP), the open standard that lets AI assistants such as Claude, ChatGPT, Cursor and Windsurf call external tools, and it gives the assistant permissioned access to a patent system. There are two kinds. Patent search connectors give an assistant read access to public patent databases such as the EPO and USPTO registers, so it can look up documents instead of guessing. Patent workflow connectors, such as Lightbringer MCP, give an assistant read and write access to your own invention disclosures, attorney reviews and comments, scoped to one organisation, so it can create a disclosure, run a patent-grade review, submit it to attorneys and carry the attorney conversation back into the chat.

Search tells you what exists; a workflow connector helps you file. Two questions to ask any provider before connecting an unfiled invention: who operates the server, and what do they log. Third-party MCP servers see every tool call, a point IPKat raised in August 2026. Lightbringer operates its own endpoint at mcp.lightbringer.com, is SOC 2 Type 2 certified, limits access to the organisation you select at sign-in, and confirms every create, update, submit or comment action with you before it runs. Anything that changes data waits for your approval; reads run freely. Details: Lightbringer MCP.