🦊 Foxbook
Verifiable agent identity primitive for A2A and MCP.
StableAn RFC 9162-shaped public transparency log. verifyAgentCard(card) returns one of four outcomes — verified, unverified, handle-mismatch, stale-proof — backed by signed Merkle inclusion proofs. Apache 2.0. Run your own log; anyone following the spec can verify against any deployment.
curl -s https://transparency.foxbook.dev/root | jqProject
- GitHub repo — code, ADRs, runbook, RFC
- @foxbook/sdk-claim on npm — TypeScript SDK
- Verify in 60 seconds — three curls, no install
Substrate & integrations
- Harness aggregator entry — claim_type_layer: identity
- Active compositions — known integrators & status
- Active composition spec — typed-reference schema with Concordia + Sanctuary
- Compose with Foxbook — guide for new integrators
- AgentGraph litepaper §1.8 — substrate-and-primitive layering, publishing 2026-05-12
Contact
- hello@foxbook.dev — substantive engagement, integration spec sessions, security disclosures
- GitHub Discussions — public spec threads