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OpenAPI Specification

openapi: 3.2.0
info:
  title: Found17 Compare Products API
  version: 1.0.0-production
  description: 'FOUND17 production: Base mainnet x402 for agents and Stripe live carry-forward invoicing for human/business usage.'
servers:
- url: https://found17.com
security:
- x402Payment: []
- stripeSandboxAccount: []
tags:
- name: Compare Products
paths:
  /v1/compare-products:
    post:
      operationId: compare_products
      summary: Compare source-backed product records from multiple public product pages in one…
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $schema: https://json-schema.org/draft/2020-12/schema
              type: object
              properties:
                urls:
                  minItems: 2
                  maxItems: 6
                  type: array
                  items:
                    type: string
                    maxLength: 2048
                    format: uri
                select:
                  maxItems: 9
                  type: array
                  items:
                    type: string
                    enum:
                    - name
                    - brand
                    - description
                    - price
                    - currency
                    - sku
                    - availability
                    - images
                    - attributes
                response_mode:
                  type: string
                  enum:
                  - minimal
                  - standard
                  - evidence
                max_age_ms:
                  type: integer
                  minimum: 0
                  maximum: 300000
              required:
              - urls
              additionalProperties: false
      responses:
        '200':
          description: Successful execution envelope
          content:
            application/json:
              schema:
                type: object
        '400':
          description: Invalid request
        '402':
          description: Payment authorization required. Production uses x402 v2 exact USDC on Base mainnet or Stripe live carry-forward invoicing; the response includes a standard PAYMENT-REQUIRED challenge.
          headers:
            PAYMENT-REQUIRED:
              schema:
                type: string
              description: Base64-encoded x402 v2 PaymentRequired object
            WWW-Authenticate:
              schema:
                type: string
              description: Compatibility x402 challenge
            X-Payment-Required:
              schema:
                type: string
                enum:
                - 'true'
        '429':
          description: Rate or execution limit exceeded
        '502':
          description: Upstream source failure
      tags:
      - Compare Products
components:
  securitySchemes:
    x402Payment:
      type: apiKey
      in: header
      name: PAYMENT-SIGNATURE
      description: Base64-encoded x402 v2 exact USDC authorization on Base mainnet.
    stripeSandboxAccount:
      type: apiKey
      in: header
      name: X-Found17-Account-Id
      description: 'Human/business billing account identifier; pair with X-Found17-Billing-Mode: stripe.'