USPTO Patent and Trademark MCP

Open-source connector that lets Claude search US patents and trademarks, pull prosecution history and office actions, and check PTAB and trademark status. Free USPTO keys for some tools. Not legal advice.

Editor's rating 3.9/5 The deepest free USPTO connector we found, covering prosecution history, office actions, and trademark clearance searches, from a small community project.

Credit: riemannzeta, patent_mcp_server

GitHub: riemannzeta/patent_mcp_server · 85 stars as of Oct 23, 2026

A drafting and review aid for lawyers and compliance teams. It does not give legal advice, and a qualified lawyer should check anything it produces before it is relied on or sent.

License: MIT

Works withClaude

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