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mcp/harbor
Verified official

concordance MCP

v2.0.0

com.narrowhighway/concordance

Deterministic claim verification with receipts across ~60 domains. No model in the loop.

transport:streamable-http
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Target client

run in your project directory 

claude mcp add --transport http concordance https://narrowhighway.com/mcp

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

This listing does not declare its tools. Connect the server and your client will discover them on the handshake.