Total System Services · Authentication Profile

Total System Services Authentication

Authentication

Total System Services secures its APIs with apiKey and http across 2 declared security schemes, as derived from its OpenAPI definitions.

PaymentsPayment ProcessingCard IssuingMerchant ServicesFintechFinancial ServicesFortune 1000
Methods: apiKey, http Schemes: 2 OAuth flows: API key in: header

Security Schemes

bearerAuth http
scheme: bearer
apiKeyAuth apiKey
· in: header (X-TSYS-API-Key)

Source

Authentication Profile

Raw ↑ 
generated: '2026-07-11'
method: derived
source: openapi/tsys-issuing-openapi.yml, openapi/tsys-payment-gateway-openapi.yml
summary:
  types:
  - apiKey
  - http
  api_key_in:
  - header
schemes:
- name: bearerAuth
  type: http
  scheme: bearer
  bearerFormat: JWT
  sources:
  - openapi/tsys-issuing-openapi.yml
- name: apiKeyAuth
  type: apiKey
  in: header
  parameter: X-TSYS-API-Key
  sources:
  - openapi/tsys-payment-gateway-openapi.yml