PayStand · Authentication Profile

Paystand Authentication

Authentication

PayStand secures its APIs with oauth2, apiKey, and http across 4 declared security schemes, as derived from its OpenAPI definitions. OAuth 2.0 is offered via the clientCredentials, authorizationCode, and password flow(s).

CompanyPaymentsB2B PaymentsAccounts ReceivableAccounts PayableFintechBlockchainACHBillingCheckout
Methods: oauth2, apiKey, http Schemes: 4 OAuth flows: clientCredentials, authorizationCode, password API key in: header

Security Schemes

oauth2 oauth2
· flows: clientCredentials, authorizationCode
Authorization http
scheme: bearer
X-CUSTOMER-ID apiKey
· in: header (X-CUSTOMER-ID)
X-PUBLISHABLE-KEY apiKey
· in: header (X-PUBLISHABLE-KEY)

Source

Authentication Profile

paystand-authentication.yml Raw ↑ 
generated: '2026-07-20'
method: searched
source: https://api.paystand.com/.well-known/openid-configuration
docs: https://developers.paystand.com/reference/getting-api-access
summary:
  types: [oauth2, apiKey, http]
  api_key_in: [header]
  oauth2_flows: [clientCredentials, authorizationCode, password]
notes: >-
  Authenticated Paystand API calls use an OAuth2 access token in the
  Authorization header ("Bearer <token>") plus an X-CUSTOMER-ID header. Access
  tokens are minted at the token endpoint with grant_type=client_credentials
  using the application clientId/clientSecret (scope "auth"). Non-authenticated
  (public checkout) calls use the X-PUBLISHABLE-KEY header carrying the
  customer's publishable key.
schemes:
- name: oauth2
  type: oauth2
  flows:
  - flow: clientCredentials
    tokenUrl: https://api.paystand.com/v3/api/v3/oauth/token
    scopes: [auth]
  - flow: authorizationCode
    authorizationUrl: https://api.paystand.com/v3/api/v3/oauth/authorize
    tokenUrl: https://api.paystand.com/v3/api/v3/oauth/token
    scopes: [auth]
  token_endpoint_auth_methods: [client_secret_basic, client_secret_post]
  source: https://api.paystand.com/.well-known/openid-configuration
- name: Authorization
  type: http
  scheme: bearer
  description: "Bearer <access_token> for authenticated calls."
  source: https://developers.paystand.com/reference/headers
- name: X-CUSTOMER-ID
  type: apiKey
  in: header
  parameter: X-CUSTOMER-ID
  description: Customer id, required for authenticated calls.
  source: https://developers.paystand.com/reference/headers
- name: X-PUBLISHABLE-KEY
  type: apiKey
  in: header
  parameter: X-PUBLISHABLE-KEY
  description: Customer's publishable API key, required for non-authenticated (public) calls.
  source: https://developers.paystand.com/reference/headers