exact over EIP-3009: POST
Compliant · POST /api/x402/eip3009-exact-post · Schemes (exact / upto / batch)
The POST counterpart: a compliant exact/EIP-3009 endpoint that settles a signed TransferWithAuthorization and returns the resource.
Explanation
The POST counterpart of the compliant EIP-3009 exact endpoint. The request body is part of the resource, not the payment: the signed authorization covers an amount, a recipient, a validity window and a nonce, and none of those depend on what the body contains. Pay it exactly like the GET. It exists because clients routinely have a working GET payment path and a broken POST one, usually from re-signing or re-sending the payment header on the retry rather than replaying the same one.
What to watch
Same single signature as the GET — a request body changes nothing about the payment, which is the point.
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: Compliant
- Method: POST
- Price: 0.0001 (100 atomic)
- Responsible party: No fix needed