Missing x402Version
Quirk · GET /api/x402/missing-x402-version · 402 / Challenge Construction
The PAYMENT-REQUIRED body omits the x402Version field.
Explanation
The PAYMENT-REQUIRED body omits x402Version, so a client cannot confirm which protocol version it is negotiating. The merchant must include the version field in the challenge.
What to watch
The client cannot confirm which protocol version it is negotiating.
Facilitator
Settled against the live Radius testnet facilitator (https://facilitator.testnet.radiustech.xyz). A valid payment runs a real /verify and /settle on-chain.
Metadata
- Status: Quirk
- Method: GET
- Price: 0.0001 (100 atomic)
- Responsible party: Merchant