timzinin-com Shopify Price Change Monitor API

openapi: 3.2.0
info:
  title: Zinin M2M Hub Shopify Price Change Monitor API
  description: Pay-per-call data & tool APIs
  version: 1.0.0
  x-guidance: 'Zinin M2M Hub — pay-per-call data & tool APIs for AI agents. Each POST /api/{slug} operation below is a distinct paid tool: call GET /api/{slug}/schema first for the exact input shape, then POST with a signed PAYMENT-SIGNATURE header (x402 v2, USDC — see x-payment-info per operation) or omit it to receive a 402 with full payment requirements in the PAYMENT-REQUIRED header. The same catalog is also available as MCP JSON-RPC tool bundles at POST /mcp/{bundle} — see GET /.well-known/x402 for the list of bundles.'
tags:
- name: Shopify Price Change Monitor
paths:
  /api/shopify-price-change-monitor:
    post:
      summary: Shopify Price Change Monitor
      description: Watches a Shopify store's catalogue and returns only the products whose price or availability changed since the previous check. The first run creates the baseline and says so.
      operationId: call_shopify_price_change_monitor
      x-payment-info:
        price:
          mode: fixed
          currency: USD
          amount: '0.050000'
        protocols:
        - x402: {}
        network: eip155:8453
        payTo: '0x409D32aD39C02BC9B23a8b2d447532ed801b12dE'
        asset: '0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913'
      requestBody:
        required: true
        content:
          application/json:
            schema:
              title: Shopify Price Change Monitor input
              type: object
              schemaVersion: 1
              properties:
                websites:
                  title: Websites
                  type: array
                  description: 'Shopify (or possibly-Shopify) store URLs to watch, e.g. "allbirds.com". Every scheduled run re-checks these same sites and reports ONLY what changed since a previous run of this watch: a store newly added to the watch, or an already-tracked store''s price range / catalog size / estimated revenue band shifting.'
                  editor: stringList
                  prefill:
                  - allbirds.com
                  maxItems: 10
                baseline_key:
                  title: Watch name
                  type: string
                  description: A name for THIS watch, so you can run several independent store watches from one Actor (e.g. "dtc-competitors", "my-portfolio") without one overwriting another's memory of what's already been seen. Each name is scoped to YOUR OWN Apify account. The prefilled value is only there so this Actor's own daily test run has a stable, obviously-a-test name; replace it with your own watch name.
                  editor: textfield
                  prefill: apify-daily-test
                max_items:
                  title: Max change rows per run
                  type: integer
                  description: Caps how many new-store / changed-store rows a single run will deliver and charge for, even if more were found.
                  default: 20
                  minimum: 1
                  maximum: 200
              required:
              - websites
      responses:
        '200':
          description: Actor run succeeded and payment settled
          content:
            application/json:
              schema:
                type: object
                properties:
                  results:
                    type: array
                    items:
                      type: object
                    description: Actor output items — shape is actor-specific (varies per tool); see this operation's own requestBody schema/description for what the underlying actor produces.
                  meta:
                    type: object
                    properties:
                      run_ms:
                        type: integer
                        description: Actor run duration in milliseconds
                      item_count:
                        type: integer
                        description: len(results)
                      settled:
                        type: boolean
                        description: Whether the x402 payment was confirmed settled by the facilitator
                      transaction:
                        type:
                        - string
                        - 'null'
                        description: On-chain settlement transaction hash, null if unsettled
                    required:
                    - run_ms
                    - item_count
                    - settled
                    - transaction
                required:
                - results
                - meta
        '400':
          description: Malformed PAYMENT-SIGNATURE header or request body
        '402':
          description: Payment required or invalid — see PAYMENT-REQUIRED header
        '409':
          description: Payment payload already used
        '502':
          description: Actor run failed
        '504':
          description: Actor run timed out
      tags:
      - Shopify Price Change Monitor