proof402
x402
machine-commerce
trust

Commerce Verify

Verify that an x402 v2 payment payload, settlement evidence, original request, accepted offer, spending policy, and delivered response are mutually bound; SALT19 operations can additionally be checked against authoritative D1 commercial state. Current x402 price: $0.01. A stable Idempotency-Key is required across challenge and paid retry.

post/v1/commerce-verify

Request

  • Base URL: https://api.salt19.com
  • URL: https://api.salt19.com/v1/commerce-verify
  • Auth: none declared

Headers

Idempotency-Keystring

Recommended for the strongest semantic at-most-once retry contract. Standard x402 clients may omit it; SALT19 derives a compatibility operation identity from the payment proof and canonical purchase on paid retry.

Request body

payment_payloadobject required
settlementobject required
deliveryunknown required
target_salt19_operation_idstring

Response

Proof402 result

Changes

No recorded changes to this operation across all 1 revision of this API.