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QR Code Validate API
x402
QR Code Validate API is a paid API for AI agents from x402-qr-api.vercel.app, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-10).
Validates a QR code or associated data via an x402-paywall-protected GET endpoint
Price / call$0.002
Success—
StatusUnknown
How this service works
Validate an email address: format check plus a live MX record lookup on its domain
Output
Returns a validation result indicating whether the submitted QR code or payload is valid, including a validity status and any relevant verification details.
Example use cases
Verify scanned QR code at entry
“I just scanned a QR code at the venue entrance — can you validate it and tell me if it's authentic?”
Check QR code before redemption
“Before I redeem this QR code voucher, can you verify it's valid and hasn't been tampered with?”
Authenticate QR code token in workflow
“As part of my checkout flow, validate this QR code token and confirm whether it passes or fails verification.”
Technical details
Endpoint
GEThttps://x402-qr-api.vercel.app/api/validate?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a lightweight, pay-per-use QR code validation check without managing a subscription or standing up your own validation infrastructure. Particularly useful for agents operating in x402-enabled micropayment environments where per-call billing is preferred.
Side effects
- Missing or malformed QR code input returns a 400 error
- Payment not provided or invalid x402 payment header returns a 402 Payment Required
- QR code data that cannot be parsed returns a validation failure
- Service downtime or Vercel deployment errors return 500
- Expired or already-used QR codes may return invalid status
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| input | object |
Tags
x402
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