Canal selection API

openapi: 3.0.3
info:
  title: Rokt Catalog csv selection API
  version: 1.0.1
  description: Integrate with Rokt Catalog
servers:
- url: https://api.shopcanal.com/platform
  description: Rokt Catalog Storefront Public API
tags:
- name: selection
paths:
  /selection/ai-select/:
    post:
      operationId: selection_ai_select_create
      description: "AI-powered product selection endpoint.\n\nAccepts arbitrary JSON for items and context, uses parallel per-item GPT calls,\nand returns the zero-based index of the best item with reasoning and confidence.\n\nRequest format:\n{\n  \"items\": [arbitrary JSON objects, at least one],\n  \"context\": {arbitrary JSON object, non-empty},\n  \"session_id\": \"optional string\",\n  \"timeout_ms\": optional int or null,\n  \"metadata\": {\n    \"temperature\": 0.5,\n    \"llmModel\": \"gpt-4o\",\n    \"embeddingModel\": \"text-embedding-3-small\",\n    \"prompt\": \"default\",\n    \"verbosity\": \"low\",  // GPT-5 only: \"low\", \"medium\", or \"high\"\n    \"reasoningEffort\": \"low\"  // reasoning models: \"low\" or \"medium\";\n                              // newer GPT-5 models may also use \"none\"\n  }\n}\n\nResponse format:\n{\n  \"chosenIndex\": 0,\n  \"reasoning\": \"I would buy the Nike shoe cleaner...\",\n  \"confidence\": 0.82,\n  \"processingTimeMs\": 1245\n}"
      tags:
      - selection
      security:
      - basicAuth: []
      - platformAppId: []
        platformAppToken: []
      responses:
        '200':
          description: No response body
components:
  securitySchemes:
    basicAuth:
      type: http
      scheme: basic
    platformAppId:
      type: apiKey
      in: header
      name: X-CANAL-APP-ID
    platformAppToken:
      type: apiKey
      in: header
      name: X-CANAL-APP-TOKEN