`invalid_exact_evm_missing_eip712_domain`

The seller's quote has no token name or version in extra.


Reported by	the facilitator, during verify
Usually fixed by	the seller

Cause

For the exact scheme on EVM, the payment requirements must carry extra.name and extra.version, the token's EIP-712 domain. The facilitator rejects the payment when either is missing.

Fix

Seller: add extra: { name, version } to each EVM payment option. The official server packages fill this in for known tokens.
Check your endpoint with the endpoint checker; it warns when these fields are missing.

About this reference

Causes are taken from the source of @x402/evm 2.31. Other facilitators and later versions may use the same code for slightly different checks. See all x402 errors.