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mcp/harbor
Verified official

Open Trademarks MCP

v1.0.0

org.opentrademarks/trademarks

Free trademark search across the US, EU and Israeli registers. A register search, not legal advice.

transport:streamable-http tools:2
View source Website

Target client

run in your project directory 

claude mcp add --transport http trademarks https://mcp.opentrademarks.org/mcp

setup guides: Claude Code Claude Desktop Cursor VS Code Zed Windsurf Cline Gemini CLI Grok ChatGPT Claude.ai LangChain

Adds it for this project only. Append --scope user to make it available everywhere. Claude Code docs

check_trademark Read-only

check trademark

search_trademarks Read-only

search trademarks

All 2 tools, one page each

Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. Check the server's own documentation before granting access.