# Shopify Price & Stock Monitor: Change Alerts Any Store (`scrapemint/shopify-price-monitor`) Actor Watch any Shopify store and get one row per change: price up or down with percent, back in stock, sold out, new and removed products, variant level. Pay only for changes; scanning an unchanged catalog costs nothing. No login, no API key, no proxy. - **URL**: https://apify.com/scrapemint/shopify-price-monitor.md - **Developed by:** [Ken M](https://apify.com/scrapemint) (community) - **Categories:** E-commerce, Automation - **Stats:** 2 total users, 1 monthly users, 100.0% runs succeeded, 0 bookmarks - **User rating**: No ratings yet ## Pricing Pay per usage This Actor is paid per platform usage. The Actor is free to use, and you only pay for the Apify platform usage, which gets cheaper the higher subscription plan you have. Learn more: https://docs.apify.com/platform/actors/running/actors-in-store#pay-per-usage ## What's an Apify Actor? Actors are a software tools running on the Apify platform, for all kinds of web data extraction and automation use cases. In Batch mode, an Actor accepts a well-defined JSON input, performs an action which can take anything from a few seconds to a few hours, and optionally produces a well-defined JSON output, datasets with results, or files in key-value store. In Standby mode, an Actor provides a web server which can be used as a website, API, or an MCP server. Actors are written with capital "A". ## How to integrate an Actor? If asked about integration, you help developers integrate Actors into their projects. You adapt to their stack and deliver integrations that are safe, well-documented, and production-ready. The best way to integrate Actors is as follows. In JavaScript/TypeScript projects, use official [JavaScript/TypeScript client](https://docs.apify.com/api/client/js.md): ```bash npm install apify-client ``` In Python projects, use official [Python client library](https://docs.apify.com/api/client/python.md): ```bash pip install apify-client ``` In shell scripts, use [Apify CLI](https://docs.apify.com/cli/docs.md): ````bash # MacOS / Linux curl -fsSL https://apify.com/install-cli.sh | bash # Windows irm https://apify.com/install-cli.ps1 | iex ```bash In AI frameworks, you might use the [Apify MCP server](https://docs.apify.com/platform/integrations/mcp.md). If your project is in a different language, use the [REST API](https://docs.apify.com/api/v2.md). For usage examples, see the [API](#api) section below. For more details, see Apify documentation as [Markdown index](https://docs.apify.com/llms.txt) and [Markdown full-text](https://docs.apify.com/llms-full.txt). # README ## Shopify Price & Stock Monitor: Change Alerts for Any Store Competitor repricing, restocks, sellouts, and quiet catalog additions all happen in public — every Shopify store publishes its full catalog with variant prices and availability. This actor watches any list of Shopify stores and emits **one row per change**: price up or down (with exact percent), back in stock, out of stock, new product, removed product. No login, no API key, and **no proxy** — the data comes straight from each store's public catalog endpoint. You pay per change, not per scan. A 5,000 product catalog where nothing moved costs you nothing. Competitive pricing tools charge $99+ a month to do this. ### What you get One row per detected change: | Field | Description | |---|---| | `changeType` | `price_increase`, `price_decrease`, `back_in_stock`, `out_of_stock`, `new_product`, `product_removed`, or a one-time free `baseline` | | `store` | Which monitored store | | `productTitle`, `productUrl`, `productId` | The product | | `variantId`, `variantTitle`, `sku` | The exact variant (size, color, ...) | | `oldPrice`, `newPrice`, `priceChangePercent` | For price moves | | `oldAvailable`, `newAvailable` | For stock flips | | `checkedAt` | Timestamp | Prices are in each store's own currency, as published in its catalog. ### How it works The first run per store saves a catalog snapshot and emits a single **free** baseline row. Every following run pages through the catalog (up to your product cap), diffs variant-level price and availability against the stored snapshot, and pushes only the differences. Snapshots live in a named key-value store and survive between runs. ### Input - **Store URLs**: any Shopify storefronts (competitors, suppliers, brands you resell). - **Change toggles**: prices, stock, new products, removed products — pick what you care about. - **Minimum price change %**: ignore penny jitter, e.g. only report moves of 5% or more. - **Max products per store / max rows per run**: scan depth and cost cap. ### Pricing Pay per result: **$0.01 per change row**. Baselines are free, the first 2 change rows of every run are free, and unchanged catalogs cost nothing. Watching 3 competitor stores daily typically costs a few cents a day. Even a heavy repricing day (100 changes) is $1. ### Typical uses - **E-commerce brands**: know the morning a competitor drops prices, and by exactly how much, per variant. - **Resellers and dropshippers**: restock alerts on supplier stores; `back_in_stock` rows straight to Slack via a webhook. - **Agencies**: pricing intel feeds for retail clients without a Prisync seat per client. - **Deal hunters and arbitrage**: `price_decrease` rows across a watchlist of stores. - **Category research**: `new_product` rows show where a competitor is expanding. ### Scheduling Run it daily (or hourly for fast-moving stores) on an Apify schedule. Wire rows to Slack, email, or Google Sheets with Apify integrations, or poll the dataset via API. Pair with the [Shopify Store Products Scraper](https://apify.com/scrapemint/shopify-store-products-scraper) when you need the full catalog rather than the changes. ### Data notes Works on any store built on Shopify (the catalog endpoint is part of the platform). A small number of stores disable their public catalog; those are skipped with a warning and cost nothing. Catalog data reflects what the store publishes; flash-sale apps that bypass the catalog may not be visible. # Actor input Schema ## `storeUrls` (type: `array`): Storefront URLs to monitor, e.g. https://www.allbirds.com. Any store built on Shopify works. ## `trackPrices` (type: `boolean`): Emit a row when a variant's price moves, with old price, new price and percent change. ## `trackAvailability` (type: `boolean`): Emit a row when a variant goes out of stock or comes back in stock. ## `trackNewProducts` (type: `boolean`): Emit a row when a product appears in the catalog. ## `trackRemovedProducts` (type: `boolean`): Emit a row when a product disappears from the catalog. ## `minPriceChangePercent` (type: `integer`): Ignore price moves smaller than this percentage. 0 = report every change. ## `maxProductsPerStore` (type: `integer`): Catalog scan depth per store. ## `maxRows` (type: `integer`): Cap on change rows returned. Controls total cost. ## Actor input object example ```json { "storeUrls": [ "https://www.allbirds.com" ], "trackPrices": true, "trackAvailability": true, "trackNewProducts": true, "trackRemovedProducts": true, "minPriceChangePercent": 0, "maxProductsPerStore": 1000, "maxRows": 200 } ```` # API You can run this Actor programmatically using our API. Below are code examples in JavaScript, Python, and CLI, as well as the OpenAPI specification and MCP server setup. ## JavaScript example ```javascript import { ApifyClient } from 'apify-client'; // Initialize the ApifyClient with your Apify API token // Replace the '' with your token const client = new ApifyClient({ token: '', }); // Prepare Actor input const input = { "storeUrls": [ "https://www.allbirds.com" ] }; // Run the Actor and wait for it to finish const run = await client.actor("scrapemint/shopify-price-monitor").call(input); // Fetch and print Actor results from the run's dataset (if any) console.log('Results from dataset'); console.log(`💾 Check your data here: https://console.apify.com/storage/datasets/${run.defaultDatasetId}`); const { items } = await client.dataset(run.defaultDatasetId).listItems(); items.forEach((item) => { console.dir(item); }); // 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/js/docs ``` ## Python example ```python from apify_client import ApifyClient # Initialize the ApifyClient with your Apify API token # Replace '' with your token. client = ApifyClient("") # Prepare the Actor input run_input = { "storeUrls": ["https://www.allbirds.com"] } # Run the Actor and wait for it to finish run = client.actor("scrapemint/shopify-price-monitor").call(run_input=run_input) # Fetch and print Actor results from the run's dataset (if there are any) print("💾 Check your data here: https://console.apify.com/storage/datasets/" + run["defaultDatasetId"]) for item in client.dataset(run["defaultDatasetId"]).iterate_items(): print(item) # 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/python/docs/quick-start ``` ## CLI example ```bash echo '{ "storeUrls": [ "https://www.allbirds.com" ] }' | apify call scrapemint/shopify-price-monitor --silent --output-dataset ``` ## MCP server setup ```json { "mcpServers": { "apify": { "command": "npx", "args": [ "mcp-remote", "https://mcp.apify.com/?tools=scrapemint/shopify-price-monitor", "--header", "Authorization: Bearer " ] } } } ``` ## OpenAPI specification ```json { "openapi": "3.0.1", "info": { "title": "Shopify Price & Stock Monitor: Change Alerts Any Store", "description": "Watch any Shopify store and get one row per change: price up or down with percent, back in stock, sold out, new and removed products, variant level. Pay only for changes; scanning an unchanged catalog costs nothing. No login, no API key, no proxy.", "version": "0.1", "x-build-id": "eJ8BdoreTeYqIY7RQ" }, "servers": [ { "url": "https://api.apify.com/v2" } ], "paths": { "/acts/scrapemint~shopify-price-monitor/run-sync-get-dataset-items": { "post": { "operationId": "run-sync-get-dataset-items-scrapemint-shopify-price-monitor", "x-openai-isConsequential": false, "summary": "Executes an Actor, waits for its completion, and returns Actor's dataset items in response.", "tags": [ "Run Actor" ], "requestBody": { "required": true, "content": { "application/json": { "schema": { "$ref": "#/components/schemas/inputSchema" } } } }, "parameters": [ { "name": "token", "in": "query", "required": true, "schema": { "type": "string" }, "description": "Enter your Apify token here" } ], "responses": { "200": { "description": "OK" } } } }, "/acts/scrapemint~shopify-price-monitor/runs": { "post": { "operationId": "runs-sync-scrapemint-shopify-price-monitor", "x-openai-isConsequential": false, "summary": "Executes an Actor and returns information about the initiated run in response.", "tags": [ "Run Actor" ], "requestBody": { "required": true, "content": { "application/json": { "schema": { "$ref": "#/components/schemas/inputSchema" } } } }, "parameters": [ { "name": "token", "in": "query", "required": true, "schema": { "type": "string" }, "description": "Enter your Apify token here" } ], "responses": { "200": { "description": "OK", "content": { "application/json": { "schema": { "$ref": "#/components/schemas/runsResponseSchema" } } } } } } }, "/acts/scrapemint~shopify-price-monitor/run-sync": { "post": { "operationId": "run-sync-scrapemint-shopify-price-monitor", "x-openai-isConsequential": false, "summary": "Executes an Actor, waits for completion, and returns the OUTPUT from Key-value store in response.", "tags": [ "Run Actor" ], "requestBody": { "required": true, "content": { "application/json": { "schema": { "$ref": "#/components/schemas/inputSchema" } } } }, "parameters": [ { "name": "token", "in": "query", "required": true, "schema": { "type": "string" }, "description": "Enter your Apify token here" } ], "responses": { "200": { "description": "OK" } } } } }, "components": { "schemas": { "inputSchema": { "type": "object", "required": [ "storeUrls" ], "properties": { "storeUrls": { "title": "Shopify store URLs", "type": "array", "description": "Storefront URLs to monitor, e.g. https://www.allbirds.com. Any store built on Shopify works.", "default": [], "items": { "type": "string" } }, "trackPrices": { "title": "Track price changes", "type": "boolean", "description": "Emit a row when a variant's price moves, with old price, new price and percent change.", "default": true }, "trackAvailability": { "title": "Track stock changes", "type": "boolean", "description": "Emit a row when a variant goes out of stock or comes back in stock.", "default": true }, "trackNewProducts": { "title": "Track new products", "type": "boolean", "description": "Emit a row when a product appears in the catalog.", "default": true }, "trackRemovedProducts": { "title": "Track removed products", "type": "boolean", "description": "Emit a row when a product disappears from the catalog.", "default": true }, "minPriceChangePercent": { "title": "Minimum price change (%)", "minimum": 0, "maximum": 90, "type": "integer", "description": "Ignore price moves smaller than this percentage. 0 = report every change.", "default": 0 }, "maxProductsPerStore": { "title": "Max products per store", "minimum": 1, "maximum": 5000, "type": "integer", "description": "Catalog scan depth per store.", "default": 1000 }, "maxRows": { "title": "Max change rows per run", "minimum": 1, "maximum": 2000, "type": "integer", "description": "Cap on change rows returned. Controls total cost.", "default": 200 } } }, "runsResponseSchema": { "type": "object", "properties": { "data": { "type": "object", "properties": { "id": { "type": "string" }, "actId": { "type": "string" }, "userId": { "type": "string" }, "startedAt": { "type": "string", "format": "date-time", "example": "2025-01-08T00:00:00.000Z" }, "finishedAt": { "type": "string", "format": "date-time", "example": "2025-01-08T00:00:00.000Z" }, "status": { "type": "string", "example": "READY" }, "meta": { "type": "object", "properties": { "origin": { "type": "string", "example": "API" }, "userAgent": { "type": "string" } } }, "stats": { "type": "object", "properties": { "inputBodyLen": { "type": "integer", "example": 2000 }, "rebootCount": { "type": "integer", "example": 0 }, "restartCount": { "type": "integer", "example": 0 }, "resurrectCount": { "type": "integer", "example": 0 }, "computeUnits": { "type": "integer", "example": 0 } } }, "options": { "type": "object", "properties": { "build": { "type": "string", "example": "latest" }, "timeoutSecs": { "type": "integer", "example": 300 }, "memoryMbytes": { "type": "integer", "example": 1024 }, "diskMbytes": { "type": "integer", "example": 2048 } } }, "buildId": { "type": "string" }, "defaultKeyValueStoreId": { "type": "string" }, "defaultDatasetId": { "type": "string" }, "defaultRequestQueueId": { "type": "string" }, "buildNumber": { "type": "string", "example": "1.0.0" }, "containerUrl": { "type": "string" }, "usage": { "type": "object", "properties": { "ACTOR_COMPUTE_UNITS": { "type": "integer", "example": 0 }, "DATASET_READS": { "type": "integer", "example": 0 }, "DATASET_WRITES": { "type": "integer", "example": 0 }, "KEY_VALUE_STORE_READS": { "type": "integer", "example": 0 }, "KEY_VALUE_STORE_WRITES": { "type": "integer", "example": 1 }, "KEY_VALUE_STORE_LISTS": { "type": "integer", "example": 0 }, "REQUEST_QUEUE_READS": { "type": "integer", "example": 0 }, "REQUEST_QUEUE_WRITES": { "type": "integer", "example": 0 }, "DATA_TRANSFER_INTERNAL_GBYTES": { "type": "integer", "example": 0 }, "DATA_TRANSFER_EXTERNAL_GBYTES": { "type": "integer", "example": 0 }, "PROXY_RESIDENTIAL_TRANSFER_GBYTES": { "type": "integer", "example": 0 }, "PROXY_SERPS": { "type": "integer", "example": 0 } } }, "usageTotalUsd": { "type": "number", "example": 0.00005 }, "usageUsd": { "type": "object", "properties": { "ACTOR_COMPUTE_UNITS": { "type": "integer", "example": 0 }, "DATASET_READS": { "type": "integer", "example": 0 }, "DATASET_WRITES": { "type": "integer", "example": 0 }, "KEY_VALUE_STORE_READS": { "type": "integer", "example": 0 }, "KEY_VALUE_STORE_WRITES": { "type": "number", "example": 0.00005 }, "KEY_VALUE_STORE_LISTS": { "type": "integer", "example": 0 }, "REQUEST_QUEUE_READS": { "type": "integer", "example": 0 }, "REQUEST_QUEUE_WRITES": { "type": "integer", "example": 0 }, "DATA_TRANSFER_INTERNAL_GBYTES": { "type": "integer", "example": 0 }, "DATA_TRANSFER_EXTERNAL_GBYTES": { "type": "integer", "example": 0 }, "PROXY_RESIDENTIAL_TRANSFER_GBYTES": { "type": "integer", "example": 0 }, "PROXY_SERPS": { "type": "integer", "example": 0 } } } } } } } } } } ```