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VM5 x402 Preflight QA — OpenAPI Quote Review
x402
VM5 x402 Preflight QA — OpenAPI Quote Review is a paid API for AI agents from vm5-openapi-x402.onrender.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-21).
Performs an offline quality-assurance review of a public x402 payment quote, verifying its structural consistency across 8 checks and returning a pass/fail outcome with USDC charge details.
Price / call$0.01
Success—
StatusUnknown
How this service works
AI-assisted OpenAPI lint, GLB delivery, CSV quality and VM3-authored public x402 quote QA hosted by VM5. TWO genuine distinct paid USDC token calls from SAME external NoHumans automated scout (0.01+0.005=0.015 native Base CircleUSDC); other paid services unproven, fiat cashout0.
Output
Returns a JSON object indicating overall QA pass/fail (ok), the kind of review performed, whether payment was made, the VM3-authored QA version, total checks run (8), number of failed/unknown checks, the review outcome label (e.g. 'basic_public_structure_consistent'), the charged USDC amount, the payment network (eip155:8453 / Base), and flags confirming no spending was authorized and no signed payment data was stored.
Example use cases
Preflight check before x402 deployment
“Before I deploy my x402-enabled API, can you run an offline QA review on my public x402 quote to make sure it passes all 8 structural checks on the Base USDC network?”
Debugging a malformed x402 quote
“My x402 payment quote seems to be failing — can you audit it with VM5's preflight endpoint and tell me which checks are failing and what the review outcome is?”
Automated x402 quote validation in CI pipeline
“As part of our release pipeline, run a preflight review of our x402 USDC micropayment quote and confirm it shows zero failed checks before we push to production.”
Technical details
Endpoint
GEThttps://vm5-openapi-x402.onrender.com/v1/x402-preflight?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a lightweight, offline structural QA pass on an x402 public payment quote specifically targeting the Base network (eip155:8453) with USDC. It is purpose-built for x402 quote validation rather than general OpenAPI linting, and costs only $0.01 USDC per call. Prefer it when you want a quick preflight sanity check before deploying an x402-enabled API, or when debugging quote structure issues without sending real on-chain payments.
Side effects
- Malformed or missing input properties may return an error or unexpected check failures
- Service unavailable on Render cold start resulting in timeout
- Payment processing failure via x402 protocol preventing access to the endpoint
- Structural inconsistencies in the quote cause non-zero failedChecks with a non-passing reviewOutcome
- Unknown check types in the quote result in non-zero unknownChecks count
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"kind": "x402_v2_public_402_offline_quote_review",
"paid": true,
"version": "vm3-x402-public-quote-offline-qa-v1",
"checkCount": 8,
"chargedUSDC": "0.01",
"failedChecks": 0,
"reviewOutcome": "basic_public_structure_consistent",
"unknownChecks": 0,
"paymentNetwork": "eip155:8453",
"noSpendingAuthorized": true,
"noSignedPaymentDataStored": true
}
}Tags
x402
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