Affirm · Authentication Profile

Affirm Authentication

Authentication

Affirm secures its APIs with http across 1 declared security scheme, as derived from its OpenAPI definitions.

FintechBNPLLendingPaymentsConsumer
Methods: http Schemes: 1 OAuth flows: API key in:

Security Schemes

basicAuth http
scheme: basic

Source

Authentication Profile

Raw ↑ 
generated: '2026-07-11'
method: derived
source: openapi/affirm-checkout-openapi.yml, openapi/affirm-direct-api-openapi.yml, openapi/affirm-disputes-openapi.yml,
  openapi/affirm-transactions-openapi.yml
summary:
  types:
  - http
schemes:
- name: basicAuth
  type: http
  scheme: basic
  description: HTTP Basic Authentication using the merchant's public API key as the username
    and private API key as the password, Base64-encoded as per RFC 7617.
  sources:
  - openapi/affirm-checkout-openapi.yml
  - openapi/affirm-direct-api-openapi.yml
  - openapi/affirm-disputes-openapi.yml
  - openapi/affirm-transactions-openapi.yml