eBay E-Commerce Analytics API
Analyze eBay category trends, completed-listing sale prices, and seller performance at scale — for resellers researching sourcing categories or analysts studying secondary-market pricing behavior.
How the eBay E-Commerce Analytics API Workflow Works
Unlike price monitoring (which watches active listings), e-commerce analytics on eBay often centers on completed/sold listings — the actual sale price a category of item achieves, not just the asking price. Crawl eBay's 'sold listings' filtered search results for a category or keyword to get a distribution of realized sale prices, which is far more useful for market research than active asking prices (which sellers can set arbitrarily high). Combine this with seller feedback scores to separate high-trust sellers' pricing from outliers.
Recommended Tier & Cost
Sold-listing and category search pages on eBay are server-rendered like active listings — Tier 1 handles both, keeping category-scale analytics jobs inexpensive even at high volume.
Sample Output
{
"search_query": "vintage camera, sold listings",
"results_analyzed": 156,
"sale_price_distribution": { "min": 45.0, "median": 128.5, "max": 890.0 },
"sample_result": {
"item_id": "394821756392",
"sold_price": 142.5,
"sold_date": "2026-07-01",
"condition": "Used"
}
}Need an API key? — no credit card required.
Responsible Use
AlterLab is designed for extracting publicly available data. Always review the terms of service for eBay, respect robots.txt directives, and ensure your use case complies with applicable laws in your jurisdiction. Do not use this service to access non-public, authenticated, or personally identifiable data without appropriate authorization.
Quick Start
# Always verify eBay's robots.txt and terms of service before extracting data.
curl -X POST https://alterlab.io/api/v1/scrape \
-H "X-API-Key: YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"url": "https://www.ebay.com/itm/123456789",
"advanced": { "render_js": false }
}'Frequently Asked Questions
Can I get actual sold prices, not just asking prices?
Yes — filter your search for 'sold listings' and AlterLab extracts the final sold_price and sold_date for each completed transaction, which is a much stronger pricing signal than active listing prices.
How large a category can I analyze in one job?
Crawl jobs can enumerate hundreds of sold listings per category search in a single run; for very large categories, paginate across multiple crawl jobs and merge the results.
Does condition (new/used) affect the data returned?
Yes — the condition field is included per listing so you can segment your price distribution by new vs. used vs. refurbished before drawing conclusions.
Related Guides
Developer Scraping Resources
How to Scrape eBay Data: Complete Guide
Step-by-step tutorial with Python and Node.js code examples, structured extraction, and cost breakdown for eBay scraping.
How to Handle Bot Protection Challenges
All 6 detection layers explained: TLS fingerprinting, JS challenges, Turnstile, and more.
JavaScript Rendering API
Full browser rendering for SPAs, React, and dynamic content.
Python Web Scraping API
pip install alterlab — async-ready Python SDK with 5,000 free scrapes.
Pricing
From $0.0002/request. No subscriptions. Balance never expires.
Your first scrape.
Sixty seconds.
$1 free credit — up to 5,000 scrapes. No credit card.
Just a POST request.
No credit card required · $1 free credit, up to 5,000 scrapes · Balance never expires