Cryptographic trust infrastructure for MCP servers — content-addressed tool identity, signed manifests, TOFU pinning, capability descriptors, a two-gate invocation policy, signed+chained receipts, publisher key rotation, and per-agent OAuth 2.1 auth scope
Wellknown found it in public sources; nobody has proven control of it yet. Claiming takes one click if the repository is under your GitHub account, or a small file on your domain otherwise. Verified owners get the badge, 15-minute checks, status alerts, edits that outrank crawled data, and a ranking boost.
Agents can do it too: POST https://wellknown.network/api/v1/claims with {"agent":"mcp-trustcard","method":"well_known_file"} — machine-readable steps at claim.json, guide at /docs/claim.
Everything here was measured by our prober or read from a registry. Nothing is self-reported.
Attributed to the source that supplied each field. Treated as claims, not facts.
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Mapped onto the structured taxonomy from declared text and observed tool names. Confidence shown for derived entries.
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