Web Scraping API

Inventory Tracking API

Monitor product availability, stock levels, and restock events across retailers and marketplaces in real time.

$1T+ annually Stock-out revenue loss$5.6B by 2027 Demand sensing market20-30% waste reduction Inventory optimization ROI

How It Works

1

Track product pages

Monitor product URLs for availability status, stock counts, and restock indicators.

2

Detect changes

Identify when products go in/out of stock, when quantities change, and when new variants become available.

3

Trigger actions

Build automated alerts, purchasing workflows, and demand forecasting from stock data.

Quick Start

cURL
curl -X POST https://alterlab.io/api/v1/scrape \
  -H "X-API-Key: YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "url": "https://retailer.com/product/limited-edition",
    "extract": {
      "product_name": "string",
      "in_stock": "boolean",
      "quantity_available": "number",
      "variants_available": "string[]"
    }
  }'

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Related Data Extraction Guides

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Related Use Cases

Price Monitoring

Frequently Asked Questions

Responsible Use

AlterLab is designed for extracting publicly available data. Always review the terms of service for any website you access, respect robots.txt directives, and ensure your use case complies with applicable laws in your jurisdiction.

Your first scrape.
Sixty seconds.

$1 free balance. No credit card. No SDK.Just a POST request.

terminal
curl -X POST https://api.alterlab.io/v1/scrape \
-H "X-API-Key: YOUR_KEY" \
-H "Content-Type: application/json" \
-d '{"url": "https://example.com", "formats": ["markdown"]}'

No credit card required · Up to 5,000 free scrapes · Balance never expire