{"schema_version":"1.0","agent_id":"beacon","name":"Beacon","description":"Beacon is a read-only witness for the City of Agents. Give it a NANDA agent (or an ERC-8004 token id) and it resolves the agent through the NANDA registry first, then reads the ERC-8004 Identity and Reputation registries on Base Sepolia, returning trust evidence in four tiers (Brief / Claim / Reputation / Proof+Stake, per Hu & Rong, AAAI 2026). It reports evidence and leaves the trust decision to you — no wallet or RPC required by the caller.","url":"https://nanda-beacon-production.up.railway.app","capabilities":["verification","attestation","authentication","audit"],"tags":["slot:trust","phase-1","erc8004","base-sepolia","witness"],"endpoints":{"chat":"https://nanda-beacon-production.up.railway.app/chat","a2a":"https://nanda-beacon-production.up.railway.app/a2a","health":"https://nanda-beacon-production.up.railway.app/health"},"version":"1.0.0","skills":[{"id":"enrich","name":"Enrich with on-chain trust evidence","description":"Resolve an agent via the NANDA registry, then return its ERC-8004 on-chain identity, reputation and proof-of-control as tiered evidence.","tags":["verification","attestation","audit"],"examples":["enrich agent 17","tell me about agent 0x8004A818BFB912233c491871b3d84c89A494BD9e","what trust evidence exists for agent 1"]},{"id":"evidence_check","name":"Evidence check (factual threshold)","description":"Report whether an agent's recorded interaction count meets a numeric threshold. Returns the fact; the caller decides.","tags":["verification","audit"],"examples":["evidence-check agent 17 min_interactions=10"]}],"skill_md_url":"https://nanda-beacon-production.up.railway.app/SKILL.MD"}