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POST
Pay
Send the immutable payment request from a thread. The returned hosted url lets the account holder review the exact amount and payee, choose an eligible method, and confirm before any charge. Read the thread for the provider-confirmed outcome; a checkout URL is not proof of payment. A standalone payment-method setup endpoint is not public yet.

Authorizations

Authorization
string
header
required

Bearer authentication header of the form Bearer <token>, where <token> is your auth token.

Body

application/json
request
string
required

The immutable payment request returned in the thread.

Required string length: 1 - 200
Pattern: ^[A-Za-z0-9][A-Za-z0-9_.:-]*$
Example:

"payment-request-id"

idempotencyKey
string

A stable key for this payment request. Reuse it with the same request after a timeout.

Required string length: 1 - 200
Pattern: ^[A-Za-z0-9][A-Za-z0-9_.:-]*$

Response

Authorized state. Pending auth or checkout is not completion.

request
string
required
Required string length: 1 - 200
Pattern: ^[A-Za-z0-9][A-Za-z0-9_.:-]*$
status
string
required
Allowed value: "selection_required"
expiresAt
string<date-time>
required
Pattern: ^(?:(?:\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))$
url
string<uri>
required
Maximum string length: 2048
idempotencyKey
string
required
Required string length: 1 - 200
Pattern: ^[A-Za-z0-9][A-Za-z0-9_.:-]*$
Last modified on October 5, 2026