openapi: 3.1.0 info: title: Friendly Captcha Siteverify API version: v2 description: 'Best-effort OpenAPI 3.1 description of the Friendly Captcha v2 siteverify endpoint, which validates a Friendly Captcha solution token submitted with a protected form or API request. ' contact: name: Friendly Captcha Developer Docs url: https://developer.friendlycaptcha.com/docs/v2/getting-started/verify servers: - url: https://global.frcapi.com description: Global endpoint - url: https://eu.frcapi.com description: EU-hosted endpoint security: - apiKey: [] tags: - name: Siteverify paths: /api/v2/captcha/siteverify: post: tags: - Siteverify operationId: siteverify summary: Verify a Friendly Captcha response token requestBody: required: true content: application/json: schema: $ref: '#/components/schemas/SiteverifyRequest' application/x-www-form-urlencoded: schema: $ref: '#/components/schemas/SiteverifyRequest' responses: '200': description: Verification performed (check the success field) content: application/json: schema: $ref: '#/components/schemas/SiteverifyResponse' '401': description: Missing or invalid API key content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' components: schemas: ErrorResponse: type: object properties: success: type: boolean enum: - false error: $ref: '#/components/schemas/ErrorBody' ErrorBody: type: object properties: error_code: type: string description: Machine-readable error code (e.g. auth_required, auth_invalid, response_invalid, response_timeout, response_duplicate) detail: type: string SiteverifyResponse: type: object required: - success properties: success: type: boolean description: Whether the captcha solution was valid data: type: object properties: event_id: type: string challenge: type: object properties: timestamp: type: string format: date-time origin: type: string risk_intelligence: type: object nullable: true additionalProperties: true error: $ref: '#/components/schemas/ErrorBody' SiteverifyRequest: type: object required: - response properties: response: type: string description: The response value submitted in the frc-captcha-response field sitekey: type: string description: Optional sitekey to verify the puzzle was issued for securitySchemes: apiKey: type: apiKey in: header name: X-API-Key description: API key created in the Friendly Captcha dashboard