Create a purchase quote
Records a durable five-minute, non-executable observation of safe catalog economics. Equal idempotency replays return the same quote permanently.
Authorizations
Per-request RFC 9449 DPoP proof signed with ES256. Protected requests use Authorization: DPoP your_access_token_here. Create a new proof for the exact method and normalized target URI, and include the server nonce when challenged.
OAuth 2.0 with RFC 9700 security practices. Discover exact environment endpoints from /.well-known/openid-configuration and /.well-known/oauth-authorization-server, and discover the resource from /.well-known/oauth-protected-resource. Authorization-code clients use PKCE S256, the exact environment resource, nonce with openid, and DPoP binding. Confidential clients also require PAR and private_key_jwt. Access and refresh tokens are sender-constrained with DPoP. purchases:execute is unavailable and omitted from this scope registry.
Headers
Optional caller request identifier. Unsafe values are replaced with a generated UUID.
^[A-Za-z0-9._~-]{8,128}$A new 256-bit random value encoded as 43 unpadded base64url characters. Reuse it only for the same request intent.
^[A-Za-z0-9_-]{43}$Body
A request to observe current economics for one catalog service.
Stable public marketplace service identifier.
1 - 255^[A-Za-z0-9][A-Za-z0-9._-]*$Response
The durable non-executable purchase quote.
A five-minute non-executable catalog observation without provider references.
Gateway-owned durable quote identifier.
^([0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$Stable public marketplace service identifier.
1 - 255^[A-Za-z0-9][A-Za-z0-9._-]*$Stable public service capability.
1 - 255^[A-Za-z0-9][A-Za-z0-9._:-]*$Observed catalog price.
Whether the catalog service was currently routable.
Safe unavailability reason, or null when available.
^[a-z][a-z0-9_]{0,99}$Always false while exact purchase execution is blocked.
Local time at which the catalog economics were observed.
^(?:(?:\d\d[2468][048]|\d\d[13579][26]|\d\d0[48]|[02468][048]00|[13579][26]00)-02-29|\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\d|30)|(?:02)-(?:0[1-9]|1\d|2[0-8])))T(?:(?:[01]\d|2[0-3]):[0-5]\d(?::[0-5]\d(?:\.\d+)?)?(?:Z|([+-](?:[01]\d|2[0-3]):[0-5]\d)))$Local quote expiry exactly five minutes after observation.
^(?:(?:\d\d[2468][048]|\d\d[13579][26]|\d\d0[48]|[02468][048]00|[13579][26]00)-02-29|\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\d|30)|(?:02)-(?:0[1-9]|1\d|2[0-8])))T(?:(?:[01]\d|2[0-3]):[0-5]\d(?::[0-5]\d(?:\.\d+)?)?(?:Z|([+-](?:[01]\d|2[0-3]):[0-5]\d)))$