# Shopify Catalog & Variant Monitor (`nefissiez/shopify-catalog-variant-monitor`) Actor

Extract public Shopify catalogs and monitor variant prices, availability, restocks, and assortment changes.

- **URL**: https://apify.com/nefissiez/shopify-catalog-variant-monitor.md
- **Developed by:** [uras aydinlioglu](https://apify.com/nefissiez) (community)
- **Stats:** 2 total users, 1 monthly users, 100.0% runs succeeded, 0 bookmarks
- **User rating**: No ratings yet

## Pricing

from $1.00 / 1,000 variant monitoreds

This Actor is paid per event. You are not charged for the Apify platform usage, but only a fixed price for specific events.

Learn more: https://docs.apify.com/actors/running/actors-in-store.md#pay-per-event

## What's an Apify Actor?

Actors are web data automations that power AI and operations. They run on the Apify platform to scrape websites, process data, connect APIs, and automate workflows.
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.

- **AI agents and MCP clients** — the [Apify MCP server](https://docs.apify.com/integrations/mcp.md) at `https://mcp.apify.com` (remote, streamable HTTP, OAuth on first use).
- **Agentic workflows and local Actor development** — [Agent Skills](https://apify.com/.well-known/agent-skills/index.json) with the [Apify CLI](https://docs.apify.com/cli/docs.md): `npm install -g apify-cli`, then `apify login`.
- **JavaScript/TypeScript projects** — the official [JS/TS client](https://docs.apify.com/api/client/js/docs.md): `npm install apify-client`.
- **Python projects** — the official [Python client](https://docs.apify.com/api/client/python/docs.md): `pip install apify-client`.
- **Any other language** — 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 Catalog & Variant Monitor

Extract a public Shopify catalog with product, variant, SKU, barcode, price, compare-at
price, availability, images, vendor, type, tags, and timestamps. Optional monitor mode
compares the current catalog with the previous run for the same storefront and labels
new products, removals, price changes, and availability changes.

### Buyer use cases

- Competitor price and assortment monitoring.
- Supplier and dropshipping catalog discovery.
- Restock and variant availability tracking.
- Scheduled catalog snapshots for merchandising teams.

### Input

```json
{"stores":["https://shop.polymer-project.org"],"maxProductsPerStore":500,"monitorMode":true}
```

One dataset row is saved per variant. A summary and compact baseline are stored in the
default key-value store. The Actor reads only public storefront endpoints and never logs
in, adds to cart, checks out, or bypasses access controls. Some stores disable the public
catalog endpoint; those failures are returned honestly.

### Pricing

Recommended pay per event: **$0.001 per variant result** ($1 per 1,000), plus the Apify
synthetic Actor Start event at $0.00005. Platform usage should be included.

# Actor input Schema

## `stores` (type: `array`):

Public Shopify storefront domains or URLs, maximum 20.

## `maxProductsPerStore` (type: `integer`):

Budget cap for products read from each storefront.

## `monitorMode` (type: `boolean`):

Store a compact baseline and label price or availability changes on later runs.

## `timeoutSecs` (type: `integer`):

Network timeout for each catalog request.

## Actor input object example

```json
{
  "stores": [
    "https://colourpop.com"
  ],
  "maxProductsPerStore": 100,
  "monitorMode": true,
  "timeoutSecs": 20
}
```

# Actor output Schema

## `results` (type: `string`):

No description

## `summary` (type: `string`):

No description

# 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 '<YOUR_API_TOKEN>' with your token
const client = new ApifyClient({
    token: '<YOUR_API_TOKEN>',
});

// Prepare Actor input
const input = {};

// Run the Actor and wait for it to finish
const run = await client.actor("nefissiez/shopify-catalog-variant-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 '<YOUR_API_TOKEN>' with your token.
client = ApifyClient("<YOUR_API_TOKEN>")

# Prepare the Actor input
run_input = {}

# Run the Actor and wait for it to finish
run = client.actor("nefissiez/shopify-catalog-variant-monitor").call(run_input=run_input)

# Fetch and print Actor results from the run's dataset (if there are any)
print(f"💾 Check your data here: https://console.apify.com/storage/datasets/{run.default_dataset_id}")
for item in client.dataset(run.default_dataset_id).iterate_items():
    print(item)

# 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/python/docs/quick-start

```

## CLI example

```bash
echo '{}' |
apify call nefissiez/shopify-catalog-variant-monitor --silent --output-dataset

```

## MCP server setup

```json
{
    "mcpServers": {
        "apify": {
            "type": "http",
            "url": "https://mcp.apify.com/?tools=fetch-actor-details,nefissiez/shopify-catalog-variant-monitor"
        }
    }
}
```

The hosted server signs you in with OAuth on first connect, so no API token belongs in this config. Clients without OAuth support can send an `Authorization: Bearer <APIFY_API_TOKEN>` header instead, using a token from API & Integrations in Apify Console (https://console.apify.com/settings/integrations).

## OpenAPI specification

Download the OpenAPI definition: https://api.apify.com/v2/actors/B94pnzaDggCY0544n/builds/nMNlXNdEMkkNW9aER/openapi.json