Model Context Protocol adapter for Proof-Carrying Authority: wrap an MCP tool handler so every call emits a PCActn (and attaches the proof) before the handler runs.
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Agents can do it too: POST https://wellknown.network/api/v1/claims with {"agent":"atlasauth-pca-mcp","method":"well_known_file"} — machine-readable steps at claim.json, guide at /docs/claim.
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