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mcp/harbor
Claude Code

three.ws Provenance for Claude Code

io.github.nirholas/provenance-mcp

Append-only, signed, on-chain-verifiable agent action log — record and audit what agents did.

client:Claude Code transport:stdio runtime:npm

Install three.ws Provenance in Claude Code

run in your project directory

Held in this page only — never stored, logged, or sent anywhere but back to your screen. 

claude mcp add provenance-mcp -e THREE_WS_BASE=<THREE_WS_BASE> -e THREE_WS_TIMEOUT_MS=<THREE_WS_TIMEOUT_MS> -e THREE_WS_TOKEN=<THREE_WS_TOKEN> -e THREE_WS_SIGNER_KEY=<THREE_WS_SIGNER_KEY> -- npx -y @three-ws/provenance-mcp

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

three.ws Provenance in other clients

three.ws Provenance MCP server