Cat Facts API Fact API

openapi: 3.1.0
info:
  title: Cat Facts Breeds Fact API
  description: Free REST API providing random cat facts, breed information, and cat-related trivia for developers building fun applications and learning APIs. No authentication required; CORS enabled for frontend use. Endpoints return paginated JSON data with configurable limits and max-length filters.
  version: 1.0.0
  contact:
    url: https://catfact.ninja/
  license:
    name: MIT
    url: https://github.com/alexwohlbruck/cat-facts/blob/master/LICENSE
servers:
- url: https://catfact.ninja
  description: Production server
tags:
- name: Fact
paths:
  /fact:
    get:
      operationId: getRandomFact
      summary: Get a random cat fact
      description: Returns a single random cat fact.
      parameters:
      - name: max_length
        in: query
        required: false
        description: Maximum length of returned fact in characters.
        schema:
          type: integer
          minimum: 1
      responses:
        '200':
          description: A single cat fact
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Fact'
              example:
                fact: In multi-cat households, cats of the opposite sex usually get along better.
                length: 75
        '404':
          description: No fact found matching criteria
      tags:
      - Fact
components:
  schemas:
    Fact:
      type: object
      description: A single cat fact with its character length.
      required:
      - fact
      - length
      properties:
        fact:
          type: string
          description: The cat fact text.
          example: In multi-cat households, cats of the opposite sex usually get along better.
        length:
          type: integer
          description: Character length of the fact.
          example: 75