Independent evidence authority

Trust Authority AI

Know Your Agent. Issue, verify, and export portable trust evidence for autonomous agents: W3C verifiable credentials, runtime attestation, disclosure receipts, federated trust scores, and signed evidence packages.

API and MCP first Evidence, not verdict did:web:trustauthority.ai

Verifiable credential Verified

KYA L2

Subjectdid:web:trustauthority.ai:agent:9f2c4a7b Issuerdid:web:trustauthority.ai Issued2026-04-12T14:02:11Z Signature3a7bd5...e9f1c20a4b8d2f6c

Trust score breakdown 87 / 100

Identity attestation

96

Runtime behavior

84

Disclosure receipts

78

Federation reputation

72

What we issue

Evidence, not opinions.

Trust Authority AI signs reproducible verification records that verifiers, auditors, insurers, and federation peers can inspect. It does not absorb liability or tell a downstream party what conclusion to draw.

W3C verifiable credentials

DID-bound, revocable, exportable as signed JSON-LD.

Runtime attestation

Session-scoped evidence for managed agent runtimes.

Disclosure receipts

Signed records of what an AI system disclosed at interaction time.

Protocol evidence bridge

Evidence bundles for MCP, A2A, AP2/ACP, TAP, and x402 contexts.

Evidence packages

Portable manifests for compliance, underwriting, and dispute review.

TrustBadge verification

Public lookup by DID, no login required.

API and MCP first

One call returns the evidence record.

Verify, attest, and federate from any runtime. The MCP server exposes the same evidence surface for agents that need to evaluate peers during autonomous workflows.

verify.ts

const res = await fetch("https://api.trustauthority.ai/v1/verify", {
  method: "POST",
  headers: { Authorization: `Bearer ${key}` },
  body: JSON.stringify({
    did: "did:web:trustauthority.ai:agent:9f2c4a7b"
  })
});

const evidence = await res.json();
console.log(evidence.kyaLevel);   // "L2"
console.log(evidence.trustScore); // 87

KYA Levels