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UTA Trust API – Batch Agent Trust Verification
x402
UTA Trust API – Batch Agent Trust Verification is a paid API for AI agents from uta-trust-api.eddyflores100.workers.dev, paid per call via x402, $0.08/call, status unknown (last checked 2026-10-20).
Verifies the trustworthiness of 1–10 Agent Trust Cards (ATC/1.0) in a single batch call, returning risk scores and Ed25519-backed verification results for each agent DID.
Price / call$0.08
Success—
StatusUnknown
How this service works
Agent trust verification (ATC/1.0) as a paid x402 resource on Base Mainnet and Base Sepolia. Real Ed25519 verification at the edge; settlement via production facilitators (mainnet: PayAI; testnet: x402.org) with EIP-3009.
Output
Returns a JSON object with a count of processed cards, the payer's on-chain address, and an array of per-agent results each containing the DID, a risk level (e.g. 'low' or 'high'), a boolean verified flag, and an optional reason string explaining any failure or anomaly. Also includes the protocol version (ATC/1.0).
Example use cases
Gate-keeping a multi-agent pipeline
“Before these three external agents join my data processing pipeline, run their ATC/1.0 trust cards through the UTA batch verifier and flag any that come back high-risk or unverified.”
Screening agents at onboarding
“I'm onboarding five new AI agents to my platform — can you submit all five of their trust cards to the batch verifier and show me the risk level and whether each DID was verified?”
Periodic trust audit of agent fleet
“Run a trust check on all eight agents currently active in my fleet using their latest ATC/1.0 cards and let me know if any have changed to a high-risk or unverified status since last time.”
Technical details
Endpoint
POSThttps://uta-trust-api.eddyflores100.workers.dev/v1/trust/batch?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need to verify the trust and risk posture of AI agents using the ATC/1.0 standard before admitting them to a workflow, marketplace, or multi-agent system. It is especially valuable when you need to process multiple agent trust cards in one round-trip (up to 10), reducing latency and cost compared to single-agent checks. Prefer it when you need Ed25519-backed cryptographic verification with on-chain settlement guarantees via Base Mainnet or Base Sepolia.
Side effects
- Payment not settled — 402 returned if x402 payment is missing or rejected by the facilitator
- Invalid trust card format — card missing required ATC/1.0 fields returns verified:false with reason 'card missing'
- Batch size exceeded — submitting more than 10 cards returns a validation error
- Ed25519 signature mismatch — card with invalid signature returns verified:false
- Network/facilitator outage — Base Mainnet or Sepolia facilitator unreachable causes settlement failure
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| cards | array | 1..10 Agent Trust Cards ATC/1.0 |
Output
Schema · Response
{
"type": "json",
"example": {
"count": 2,
"payer": "0x…",
"results": [
{
"did": "did:web:a.example",
"risk": "low",
"reason": null,
"verified": true
},
{
"did": null,
"risk": "high",
"reason": "card missing",
"verified": false
}
],
"protocol": "ATC/1.0"
}
}Tags
x402
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