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OpenAPI Specification

openapi: 3.2.0
info:
  title: Answer Checkup Scan Details API
  version: 0.1.0
  description: 'AI visibility scan and reports. AI-generated answers, measured via each engine''s API (OpenAI API with web search and Perplexity API). Paid endpoints use x402 v2 (HTTP 402, PAYMENT-REQUIRED / PAYMENT-SIGNATURE headers). Scan details (the checks and fixes for one free scan) cost $2.99, one time, paid by card through Stripe Checkout: POST /v1/checkout with product_tier "scan_unlock". Agent prices over x402 (USDC): Lite report 29 USDC, Full report 49 USDC, scan details 2.99 USDC.'
  contact:
    name: Answer Checkup
    email: hello@answercheckup.com
    url: https://answercheckup.com/
  license:
    name: Proprietary
servers:
- url: https://answercheckup.com
security: []
tags:
- name: Scan Details
paths:
  /v1/scan-details:
    post:
      operationId: createScanDetails
      summary: Paid scan details (x402, USDC). 2.99 USDC
      description: Runs the AI readiness scan for one website and returns every check, the score breakdown and the prioritized fixes. Call without payment to receive HTTP 402 with a base64 JSON PAYMENT-REQUIRED header (x402 v2, scheme exact). Payment is settled only if the scan completes.
      x-payment-info:
        protocol: x402
        scheme: exact
        prices:
          scan_details: 2.99 USDC
        asset: USDC
        status: coming-soon
      parameters:
      - name: PAYMENT-SIGNATURE
        in: header
        required: false
        description: x402 v2 payment payload (base64 JSON). Omit on the first call to receive the 402 challenge.
        schema:
          type: string
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required:
              - url
              properties:
                url:
                  type: string
                  description: Website URL of the business
                  example: https://example.com
      responses:
        '200':
          description: Scan details returned and payment settled
        '400':
          description: Invalid input (checked before any payment)
        '402':
          description: Payment required. The PAYMENT-REQUIRED header holds the x402 v2 requirements (base64 JSON).
          headers:
            PAYMENT-REQUIRED:
              schema:
                type: string
              description: 'base64 JSON: x402Version 2, accepts[] with scheme exact, network, amount (USDC, 6 decimals), asset, payTo'
        '409':
          description: This payment has already been used
        '502':
          description: The scan failed. Payment was not settled.
      tags:
      - Scan Details