WHMCS · Authentication Profile

Whmcs Authentication

Authentication

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

Web HostingBilling AutomationClient ManagementDomain ManagementSupport TicketsProvisioning
Methods: apiKey Schemes: 1 OAuth flows: API key in: query

Security Schemes

ApiCredentials apiKey
· in: query (identifier)

Source

Authentication Profile

Raw ↑ 
generated: '2026-07-11'
method: derived
source: openapi/whmcs-openapi.yml
summary:
  types:
  - apiKey
  api_key_in:
  - query
schemes:
- name: ApiCredentials
  type: apiKey
  in: query
  parameter: identifier
  description: WHMCS API credentials. Provide identifier and secret parameters in the POST request
    body, along with the action parameter.
  sources:
  - openapi/whmcs-openapi.yml