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AEML x402 Trust Precheck
x402
AEML x402 Trust Precheck is a paid API for AI agents from aeml-x402.zeabur.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-13).
Returns a pre-payment trust snapshot for an x402 service, including score_total, liveness_state, streak, lifecycle metadata, and record_hash from a July 2026 census snapshot.
Price / call$0.01
Success—
StatusUnknown
How this service works
[SIGNAL+PROOF] Demand record for one x402 service (?service=): demand_class (REAL/SOLO/PROBE/WASH), calls_30d, unique_payers_30d, score_total, liveness_state, lifecycle, record_hash. Model demand-v1, refreshed daily from the public CDP catalogue; score_total is an ordering key, not a rating. DEGRADED DELIVERY, see unavailable_fields - tier, verified, action_hint and the five-axis sub-scores are empty. Descriptive only, never a forecast or advice. No data -> 422 no_charge, not billed.
Output
Returns a JSON object with service_id, score_total (overall trust score), liveness_state (e.g. active/inactive), liveness_streak (consecutive liveness count), lifecycle object, record_hash, observed_at timestamp, capture_date, data_age_hours, baseline_delta, and an unavailable_fields array listing fields that could not be populated due to the original collector being offline (tier, verified, action_hint, five-axis subscores, onchain_* fields). Also includes source_note and unavailable_reason explaining degraded delivery.
Example use cases
Pre-payment due diligence on x402 API
“I'm about to pay 0.01 USDC to call the x402 service with ID 'svc-weather-delta' — can you run the trust precheck first and tell me if it's live, what its score is, and whether there are any unavailable fields I should know about?”
Monitoring liveness streak of a service
“Check the liveness streak and current liveness state for x402 service ID 'svc-shipping-oracle' — I want to know if it's been consistently up or has dropped recently.”
Verifying service identity via record hash
“Can you fetch the trust precheck record for x402 service 'svc-stablecoin-risk' and give me the record hash and lifecycle info so I can confirm it matches what I have on file?”
Technical details
Endpoint
GEThttps://aeml-x402.zeabur.app/trust/precheckWhen to prefer
Use this endpoint when you need a quick, low-cost ($0.01 USDC) pre-payment trust check on an x402 service before committing to a call. It is specifically designed for the x402 micropayment ecosystem and surfaces liveness, scoring, and lifecycle metadata. Accept that some fields will be unavailable due to degraded delivery mode — the endpoint is honest about this via unavailable_fields. Do not use if you need real-time verified scoring, tier data, or on-chain verification, as those fields are permanently unavailable from this source.
Side effects
- Missing or invalid service ID returns error or empty result
- Data is from a 2026-07-08 census snapshot and may be stale (data_age_hours will be large)
- Many fields (tier, verified, action_hint, onchain_*) are consistently unavailable due to collector shutdown — returned as unavailable_fields
- score_total may be null if scoring data was not captured
- Network or upstream service unavailability on zeabur.app
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| input | object | |
| output | object |
Output
Schema · Response
{
"type": "json"
}Tags
x402
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