Legacy v1 headers (X-PAYMENT)
Quirk · GET /api/x402/legacy-v1-headers · 402 / Challenge Construction
Emits the legacy v1 X-PAYMENT header instead of the v2 PAYMENT-REQUIRED challenge.
Explanation
The server emits legacy v1 X-PAYMENT headers instead of the v2 PAYMENT-REQUIRED challenge. v2-only clients ignore them and see no payment prompt. The merchant needs to upgrade its challenge format.
What to watch
v2-only clients ignore it and see no payment prompt.
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