Use case
Price Monitoring
Track prices, offers, and stock across Amazon, Walmart, eBay, Costco, Wayfair, Home Depot, and Google Shopping. Power price comparison and competitor monitoring in real time.
Overview
Price and product monitoring means tracking how listings, prices, offers, and availability change across online stores over time. OpenWeb Ninja's e-commerce APIs return live product data from Amazon, Walmart, eBay, Costco, Wayfair, Home Depot, and aggregated Google Shopping results, including offers, buy-box pricing, price history from Google Shopping, and reviews. Use them for price comparison, competitor monitoring, repricing, and catalog enrichment, with a free tier and simple REST endpoints.
APIs for Price Monitoring
Mix and match these APIs to build your solution. Every one includes a free tier.
Real-Time Amazon Data API
E-Commerce
Fast, Reliable, and Extensive Amazon Data API - Get Products & ASIN Data, Reviews, Offers, Best Sellers & Deals, Seller Data, Influencers Data, and More from Amazon in Real-Time.
Amazon
Web
Real-Time Product Search API
E-Commerce
Fast and Reliable Product Searches, Extensive Product Data Including Offers & Prices, Rating & Reviews, Images, Variants, Historical Prices, and More in Real-Time from Google Shopping.
Google Shopping
Real-Time Walmart Data API
E-Commerce
Fast, Reliable, and Extensive Walmart Data API - Search and Get Products, Product Details, Reviews, Offers, Browse by Category, and More from Walmart US and Canada in Real-Time.
Walmart
Real-Time eBay Data API
E-Commerce
Fast, Reliable, and Extensive eBay Data API - Search Products, List Products by Category, Get Seller Feedback / Product Reviews, and More from 20 eBay Domains Worldwide in Real-Time.
eBay
Real-Time Costco Data API
E-Commerce
Fast, Reliable, and Extensive Costco Data API - Search and Get Products, Prices, Ratings, Categories, Images, and More from Costco US and Canada in Real-Time.
Costco
Real-Time Wayfair Data API
E-Commerce
Fast, Reliable, and Extensive Wayfair Data API - Search Products, Get Product Details with Pricing and Stock, Paginated Reviews with AI Summaries, and More from All Wayfair Domains in Real-Time.
Wayfair
Real-Time Home Depot Data API
E-Commerce
Fast and Reliable Product Searches, Product List by Category, Extensive Products Details, Product Reviews, and More on Home Depot in Real-Time.
Home Depot
Real-Time Lens Data API
SERP & Search
Fast and reliable Google Lens API - get visual matches, OCR text recognition, knowledge graph insights, product information, QR code data and more from any image in real-time.
Google Lens
Real-Time Bing Search API
SERP & Search
Fast and Reliable Bing Search API (SERP) - Web, News, Images, Videos, Shopping, Product and Maps Results from Microsoft Bing in Real-Time.
BingFrequently asked questions
Which marketplaces are covered?
OpenWeb Ninja covers Amazon, Walmart, eBay, Costco, Wayfair, and Home Depot with dedicated real-time APIs, plus Real-Time Product Search, which aggregates products and offers from across major sources via Google Shopping.
How can I track the price of a specific product over time?
The Real-Time Product Search API returns price history from Google Shopping for a product, so you can see how its price has changed over time directly. You can also look up a product by its identifier on the marketplace APIs and pull current offers and pricing on a schedule, which lets you build your own price-history tracking, repricing, and buy-box monitoring.
How can I compare the same product across marketplaces?
By querying the same product across the Amazon, Walmart, and other marketplace APIs, or by using Real-Time Product Search, you can compare prices and offers across retailers for comparison-shopping use cases.
Is there a free tier?
Yes. You can start tracking prices on a free tier and scale to high-volume monitoring with simple REST endpoints.
Start building with real-time web data
Every API includes a free tier. No credit card required, and the first request is a minute away.