The Cat API · Authentication Profile

The Cat Api Authentication

Authentication

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

AnimalsCatsImagesMedia
Methods: apiKey Schemes: 1 OAuth flows: API key in: header

Security Schemes

ApiKeyHeader apiKey
· in: header (x-api-key)

Source

Authentication Profile

Raw ↑ 
generated: '2026-07-11'
method: derived
source: openapi/the-cat-api-openapi.yml
summary:
  types:
  - apiKey
  api_key_in:
  - header
schemes:
- name: ApiKeyHeader
  type: apiKey
  in: header
  parameter: x-api-key
  description: API key obtained by registering at https://thecatapi.com/signup
  sources:
  - openapi/the-cat-api-openapi.yml