EcomSource: The Most Comprehensive Real-Time Product Data Gateway
EcomSource Team
Product Intelligence Analysts
In the world of e-commerce, data is everything. But not all data is created equal. While dozens of product databases exist, most of them are static, incomplete, or simply too slow for real-time operations.
EcomSource.ai was built from the ground up to solve that problem. We are not a lookup tool. We are not a barcode scanner. We are the most comprehensive real-time product data gateway — purpose-built for developers, FBA sellers, AI agents, and enterprise teams who need structured, accurate, and lightning-fast product intelligence.
What Makes a "Data Gateway" Different from a "Lookup Tool"?
A lookup tool lets you search for a product and see some basic information. A data gateway does something fundamentally different:
- Real-time resolution: Every query hits live data, not a cached snapshot from last month
- Structured output: Clean, normalized JSON ready for databases, ML pipelines, and automation
- Relationship mapping: Not just individual products, but entire variation trees — every size, color, and SKU connected
- Scale-first architecture: Built to handle millions of queries, not just a few manual searches
Think of it this way: a lookup tool is a dictionary. A data gateway is the entire language model.
The Numbers Behind EcomSource
Let's talk scale:
| Metric | EcomSource.ai |
|---|---|
| Total Products | 1.6 Billion+ |
| Identifier Types | UPC, EAN, GTIN, ISBN, ASIN |
| Average Response Time | <200ms |
| Variation Depth | Full parent-child trees |
| Data Freshness | Real-time marketplace sync |
| API Uptime | 99.9%+ |
| Supported Marketplaces | Amazon (US, CA, UK, DE, FR, IT, ES, MX, BR, and more) |
These aren't vanity metrics. Every number represents a capability that directly impacts your bottom line.
Core Capabilities That Set Us Apart
1. Instant ASIN-to-UPC/EAN/GTIN Resolution
The single most requested operation in e-commerce data: given an Amazon ASIN, what are its barcodes?
Most services make you wait, paginate, or return incomplete data. EcomSource resolves any ASIN to all its associated identifiers in a single API call:
{ "asin": "B0DSGRT2Z5", "locale": "US" } ```
Response (simplified):
{
"asin": "B0DSGRT2Z5",
"variationType": "PARENT",
"identifiers": [
{ "identifier": "197375685489", "type": "UPC" },
{ "identifier": "0197375685489", "type": "EAN" }
],
"summary": [{
"brand": "Under Armour",
"itemName": "Under Armour Men's Tech 2.0 Short-Sleeve T-Shirt",
"listPrice": 25.00,
"listPriceCurrency": "USD"
}]
}No pagination. No rate-limit gymnastics. Just the data you need, instantly.
2. Full Variation Intelligence
This is where EcomSource truly separates from everything else. When you query a parent product, you don't just get the parent — you get the entire variation tree.
Consider a product like the Under Armour Tech 2.0 T-Shirt. A typical lookup tool gives you the parent listing. EcomSource gives you:
- Every child ASIN (all sizes × all colors)
- Individual identifiers for each variation (UPC, EAN, GTIN)
- Per-variation pricing and availability
- Sales rank data at both category and sub-category levels
- Dimensions and weight for each variant
For that single T-Shirt, you might get 300+ child variations — each with its own set of barcodes, pricing, and catalog data. In one API call.
This is critical for:
- FBA sellers managing multi-SKU inventory
- Wholesale distributors matching supplier catalogs to Amazon listings
- AI sourcing agents that need complete product graphs
3. AI-Ready Structured Data
Every response from EcomSource is clean, normalized JSON designed to plug directly into:
- Machine learning pipelines for product classification and pricing models
- RAG systems and AI agents that need structured product knowledge
- Catalog enrichment workflows that auto-populate product information
- Competitive analysis tools that track pricing and rankings
Our data schema includes:
- Product summary: Brand, title, manufacturer, model number, list price, category classifications
- Identifiers: All associated UPC, EAN, GTIN, ISBN codes with catalog IDs
- Dimensions: Item and package dimensions with weight
- Sales ranks: Category and sub-category rankings
- Images: Multiple product images (main, variant angles)
- Bullet points: Full product feature descriptions
- Hazmat data: Safety and compliance information
4. Real-Time Marketplace Pricing
Static databases give you a price snapshot that might be weeks or months old. EcomSource provides real-time marketplace pricing with currency data:
"summary": [{
"listPrice": 25.00,
"listPriceCurrency": "USD",
"brand": "Under Armour",
"category": "Clothing, Shoes & Jewelry"
}]This matters for:
- Dynamic repricing tools that need current competitive data
- Arbitrage scanners comparing cross-marketplace prices
- Wholesale buyers validating MAP compliance
5. Sales Rank Intelligence
Understanding where a product ranks — and in which categories — is essential for sourcing decisions. EcomSource provides multi-level sales rank data:
"salesRanks": [
{
"type": "displayGroup",
"categoryName": "Clothing, Shoes & Jewelry",
"rank": 15234
},
{
"type": "classification",
"categoryName": "Men's T-Shirts",
"rank": 89
}
]Both the broad category rank and the specific sub-category rank — so you can see that a product ranked #15,234 overall in Clothing is actually #89 in Men's T-Shirts. That context changes everything.
Who Is EcomSource Built For?
Amazon FBA Sellers
- Map supplier catalogs to Amazon listings instantly
- Verify UPC/EAN codes before listing
- Track competitive pricing and sales velocity
- Manage multi-variation inventory at scale
E-commerce Developers
- Build product comparison engines
- Power search and discovery features
- Integrate real-time product data into apps
- Fuel recommendation systems with structured data
AI & ML Engineers
- Train product classification models
- Build autonomous sourcing agents
- Create catalog enrichment pipelines
- Power conversational commerce experiences
Wholesale & B2B Suppliers
- Match your catalog to Amazon ASINs
- Verify product authenticity with barcode cross-referencing
- Track market pricing for negotiation leverage
- Automate inventory reconciliation
Integration: 5 Lines of Code
Getting started takes minutes, not days:
const response = await fetch('https://api.ecomsource.ai/api/v1/search/product', {
method: 'POST',
headers: {
'Content-Type': 'application/json',
'x-api-key': 'YOUR_API_KEY'
},
body: JSON.stringify({ asin: 'B0DSGRT2Z5', locale: 'US' })
});
const data = await response.json();That's it. Full product intelligence in a single POST request.
The Architecture Advantage
EcomSource isn't just a bigger database — it's a fundamentally different architecture:
| Aspect | Traditional Lookup | EcomSource Gateway |
|---|---|---|
| Data Model | Flat records | Relational product graphs |
| Query Pattern | One product at a time | Full variation trees |
| Response Format | HTML/basic JSON | Normalized, typed JSON |
| Update Frequency | Periodic batch | Real-time sync |
| Scale Target | Manual users | API-first automation |
| AI Compatibility | None | Native structured output |
This architecture means that as your needs grow — from 100 lookups a day to 100,000 API calls — EcomSource scales with you without changing a single line of code.
Free Tier: Start Building Today
We believe in proving value before asking for commitment:
- 100 free lookups per month — no credit card required
- Full API access — same data quality as paid tiers
- Chrome Extension for quick manual lookups
- Complete documentation with code examples in multiple languages
The best product data gateway is the one you can start using in 5 minutes. That's EcomSource.
The Bottom Line
The e-commerce data landscape is crowded with tools that were built for a simpler era — when a seller needed to look up one barcode at a time. That era is over.
Today's e-commerce runs on automation, AI, and real-time intelligence. It demands a data layer that is fast, comprehensive, structured, and scalable.
EcomSource.ai is that data layer.
1.6 Billion+ products. Real-time accuracy. Full variation intelligence. AI-ready structured data. And an API that just works.
Whether you're an FBA seller managing thousands of SKUs, a developer building the next great e-commerce tool, or an AI engineer training the future of autonomous commerce — EcomSource is the product data gateway you've been waiting for.
Stop looking up products. Start powering your business with real-time product intelligence.
---
Queries already finding EcomSource on Google (Search Console)
These are real searches where ecomsource.ai already earns impressions — prioritize the same topics in your tooling and content:
- asin to upc api — 139 impressions
- b2b data api — 121 impressions
- product data api — 36 impressions
- amazon real-time product data api 2025 or 2026 — 5 impressions
- gtin vs upc — 43 impressions
- real-time amazon product data api 2026 — 1 impressions
- b2b api — 52 impressions
- upc code — 36 impressions
- amazon product data api — 22 impressions
- upc to asin mapping tool — 8 impressions
Related searches: UPC, barcode & product identifier keywords
This section expands on EcomSource: The Most Comprehensive Real-Time Product Data Gateway with search terms sellers and developers use — including queries from Google Search Console and our keyword research. Whether you need asin to upc api, product data api, gtin vs upc, b2b data api, or bulk barcode lookup, the workflows below connect to EcomSource tools.
Upc lookup
Upc lookup is one of the highest-intent searches in product data — and it is exactly what this guide on *EcomSource* helps you solve. Sellers and developers use upc lookup to identify products, validate supplier manifests, and connect barcodes to Amazon ASINs. With EcomSource.ai you can run upc lookup free on the web, via [Chrome Extension](https://chromewebstore.google.com/detail/upc-lookup/pglhhlcbcbmfebnagjgmbchpmgokbmpb)Chrome Extensionhttps://chromewebstore.google.com/detail/upc-lookup/pglhhlcbcbmfebnagjgmbchpmgokbmpb, or through our barcode lookup API/upc-lookup across 1.6B+ indexed products.
Upc finder
Upc finder is one of the highest-intent searches in product data — and it is exactly what this guide on *EcomSource* helps you solve. Sellers and developers use upc finder to identify products, validate supplier manifests, and connect barcodes to Amazon ASINs. With EcomSource.ai you can run upc finder free on the web, via [Chrome Extension](https://chromewebstore.google.com/detail/upc-lookup/pglhhlcbcbmfebnagjgmbchpmgokbmpb)Chrome Extensionhttps://chromewebstore.google.com/detail/upc-lookup/pglhhlcbcbmfebnagjgmbchpmgokbmpb, or through our barcode lookup API/upc-lookup across 1.6B+ indexed products.
Upc code lookup
Upc code lookup is one of the highest-intent searches in product data — and it is exactly what this guide on *EcomSource* helps you solve. Sellers and developers use upc code lookup to identify products, validate supplier manifests, and connect barcodes to Amazon ASINs. With EcomSource.ai you can run upc code lookup free on the web, via [Chrome Extension](https://chromewebstore.google.com/detail/upc-lookup/pglhhlcbcbmfebnagjgmbchpmgokbmpb)Chrome Extensionhttps://chromewebstore.google.com/detail/upc-lookup/pglhhlcbcbmfebnagjgmbchpmgokbmpb, or through our barcode lookup API/upc-lookup across 1.6B+ indexed products.
Upc code
Upc code is one of the highest-intent searches in product data — and it is exactly what this guide on *EcomSource* helps you solve. Sellers and developers use upc code to identify products, validate supplier manifests, and connect barcodes to Amazon ASINs. With EcomSource.ai you can run upc code free on the web, via [Chrome Extension](https://chromewebstore.google.com/detail/upc-lookup/pglhhlcbcbmfebnagjgmbchpmgokbmpb)Chrome Extensionhttps://chromewebstore.google.com/detail/upc-lookup/pglhhlcbcbmfebnagjgmbchpmgokbmpb, or through our barcode lookup API/upc-lookup across 1.6B+ indexed products.
Barcode of a product
Barcode of a product is one of the highest-intent searches in product data — and it is exactly what this guide on *EcomSource* helps you solve. Sellers and developers use barcode of a product to identify products, validate supplier manifests, and connect barcodes to Amazon ASINs. With EcomSource.ai you can run barcode of a product free on the web, via [Chrome Extension](https://chromewebstore.google.com/detail/upc-lookup/pglhhlcbcbmfebnagjgmbchpmgokbmpb)Chrome Extensionhttps://chromewebstore.google.com/detail/upc-lookup/pglhhlcbcbmfebnagjgmbchpmgokbmpb, or through our barcode lookup API/upc-lookup across 1.6B+ indexed products.
Upc codes
Upc codes is one of the highest-intent searches in product data — and it is exactly what this guide on *EcomSource* helps you solve. Sellers and developers use upc codes to identify products, validate supplier manifests, and connect barcodes to Amazon ASINs. With EcomSource.ai you can run upc codes free on the web, via [Chrome Extension](https://chromewebstore.google.com/detail/upc-lookup/pglhhlcbcbmfebnagjgmbchpmgokbmpb)Chrome Extensionhttps://chromewebstore.google.com/detail/upc-lookup/pglhhlcbcbmfebnagjgmbchpmgokbmpb, or through our barcode lookup API/upc-lookup across 1.6B+ indexed products.
Product barcode
Product barcode is one of the highest-intent searches in product data — and it is exactly what this guide on *EcomSource* helps you solve. Sellers and developers use product barcode to identify products, validate supplier manifests, and connect barcodes to Amazon ASINs. With EcomSource.ai you can run product barcode free on the web, via [Chrome Extension](https://chromewebstore.google.com/detail/upc-lookup/pglhhlcbcbmfebnagjgmbchpmgokbmpb)Chrome Extensionhttps://chromewebstore.google.com/detail/upc-lookup/pglhhlcbcbmfebnagjgmbchpmgokbmpb, or through our barcode lookup API/upc-lookup across 1.6B+ indexed products.
International product code
International product code is one of the highest-intent searches in product data — and it is exactly what this guide on *EcomSource* helps you solve. Sellers and developers use international product code to identify products, validate supplier manifests, and connect barcodes to Amazon ASINs. With EcomSource.ai you can run international product code free on the web, via [Chrome Extension](https://chromewebstore.google.com/detail/upc-lookup/pglhhlcbcbmfebnagjgmbchpmgokbmpb)Chrome Extensionhttps://chromewebstore.google.com/detail/upc-lookup/pglhhlcbcbmfebnagjgmbchpmgokbmpb, or through our barcode lookup API/upc-lookup across 1.6B+ indexed products.
Upc product code
Upc product code is one of the highest-intent searches in product data — and it is exactly what this guide on *EcomSource* helps you solve. Sellers and developers use upc product code to identify products, validate supplier manifests, and connect barcodes to Amazon ASINs. With EcomSource.ai you can run upc product code free on the web, via [Chrome Extension](https://chromewebstore.google.com/detail/upc-lookup/pglhhlcbcbmfebnagjgmbchpmgokbmpb)Chrome Extensionhttps://chromewebstore.google.com/detail/upc-lookup/pglhhlcbcbmfebnagjgmbchpmgokbmpb, or through our barcode lookup API/upc-lookup across 1.6B+ indexed products.
Upc product
Upc product is one of the highest-intent searches in product data — and it is exactly what this guide on *EcomSource* helps you solve. Sellers and developers use upc product to identify products, validate supplier manifests, and connect barcodes to Amazon ASINs. With EcomSource.ai you can run upc product free on the web, via [Chrome Extension](https://chromewebstore.google.com/detail/upc-lookup/pglhhlcbcbmfebnagjgmbchpmgokbmpb)Chrome Extensionhttps://chromewebstore.google.com/detail/upc-lookup/pglhhlcbcbmfebnagjgmbchpmgokbmpb, or through our barcode lookup API/upc-lookup across 1.6B+ indexed products.
Product code lookup
Product code lookup is one of the highest-intent searches in product data — and it is exactly what this guide on *EcomSource* helps you solve. Sellers and developers use product code lookup to identify products, validate supplier manifests, and connect barcodes to Amazon ASINs. With EcomSource.ai you can run product code lookup free on the web, via [Chrome Extension](https://chromewebstore.google.com/detail/upc-lookup/pglhhlcbcbmfebnagjgmbchpmgokbmpb)Chrome Extensionhttps://chromewebstore.google.com/detail/upc-lookup/pglhhlcbcbmfebnagjgmbchpmgokbmpb, or through our barcode lookup API/upc-lookup across 1.6B+ indexed products.
Universal product code lookup
Searchers looking for universal product code lookup usually need fast, accurate product identification — not a generic description. EcomSource supports this query as part of unified UPC, EAN, GTIN, and ISBN lookup/upc-lookup with Amazon catalog mapping, variation trees, and bulk batch endpoints.
Terminology & search intent reference
Understanding *why* a query matters helps you pick the right tool. High-volume navigational searches like upc lookup (22K+), upc code lookup (15K+), and barcode lookup (12K+) expect an instant free tool. Commercial queries such as barcode lookup api, upc api, and bulk barcode lookup expect documentation, pricing, and batch endpoints — all available on EcomSource.
| Search term | Google impressions | Semrush vol. (est.) | Intent |
|---|---|---|---|
| asin to upc api | 139 | — | GSC |
| b2b data api | 121 | — | GSC |
| product data api | 36 | — | GSC |
| amazon real-time product data api 2025 or 2026 | 5 | — | GSC |
| gtin vs upc | 43 | — | GSC |
| real-time amazon product data api 2026 | 1 | — | GSC |
| b2b api | 52 | — | GSC |
| upc code | 36 | 12.1K | Informational |
| amazon product data api | 22 | — | GSC |
| upc to asin mapping tool | 8 | — | GSC |
| asin to upc converter | 21 | — | GSC |
| best amazon product data api 2026 | 20 | — | GSC |
| ecomsource | 10 | — | GSC |
| best amazon product data api 2026 comparison | 18 | — | GSC |
| amazon product advertising api real-time 2026 | 4 | — | GSC |
| asin to upc | 17 | — | GSC |
| asin to upc finderasin to upc | 3 | — | GSC |
| are gtin and upc the same | 1 | 40 | Informational |
| upc universal product code | 1 | 390 | Informational |
| upc product code | — | 1.6K | Informational |
Additional long-tail searches in this topic cluster
- search for upc
- upc code search
- go upc
- amazon isbn search
- amazon upc codes
- scan barcode amazon
- get upc code for amazon
- what is upc on ebay
- what is upc in ebay
- amazon upc lookup
- amazon barcode lookup
- barcode api
- barcode lookup api
- api shoes
- barcode search api
Free lookup tools on EcomSource.ai
- [UPC lookup tools](/upc-lookup)
- [ASIN & UPC search](/amazon-product-data-api)
- [API lookup tools](/product-data-api)
- [PRODUCT lookup tools](/barcode-lookup)
- [All guides & blog posts](/blogs)
- [API documentation](/docs)
- [Pricing for high-volume barcode lookup](/pricing)
Frequently asked questions
Product data api?
Product data api is one of the highest-intent searches in product data — and it is exactly what this guide on *EcomSource* helps you solve. Sellers and developers use product data api to identify products, validate supplier manifests, and connect barcodes to Amazon ASINs. With EcomSource.ai you can run product data api free on the web, via [Chrome Extension](https://chromewebstore.google.com/detail/upc-lookup/pglhhlcbcbmfebnagjgmbchpmgokbmpb)Chrome Extensionhttps://chromewebstore.google.com/detail/upc-lookup/pglhhlcbcbmfebnagjgmbchpmgokbmpb, or through our barcode lookup API/upc-lookup across 1.6B+ indexed products. Use the free search on [ecomsource.ai](https://www.ecomsource.ai)ecomsource.aihttps://www.ecomsource.ai or read the related sections above for step-by-step workflows tied to Product Intelligence.
Amazon real-time product data api 2025 or 2026?
Searchers looking for amazon real-time product data api 2025 or 2026 usually need fast, accurate product identification — not a generic description. EcomSource supports this query as part of unified UPC, EAN, GTIN, and ISBN lookup/upc-lookup with Amazon catalog mapping, variation trees, and bulk batch endpoints. Use the free search on [ecomsource.ai](https://www.ecomsource.ai)ecomsource.aihttps://www.ecomsource.ai or read the related sections above for step-by-step workflows tied to Product Intelligence.
Real-time amazon product data api 2026?
Searchers looking for real-time amazon product data api 2026 usually need fast, accurate product identification — not a generic description. EcomSource supports this query as part of unified UPC, EAN, GTIN, and ISBN lookup/upc-lookup with Amazon catalog mapping, variation trees, and bulk batch endpoints. Use the free search on [ecomsource.ai](https://www.ecomsource.ai)ecomsource.aihttps://www.ecomsource.ai or read the related sections above for step-by-step workflows tied to Product Intelligence.
Amazon product data api?
Amazon product data api is one of the highest-intent searches in product data — and it is exactly what this guide on *EcomSource* helps you solve. Sellers and developers use amazon product data api to identify products, validate supplier manifests, and connect barcodes to Amazon ASINs. With EcomSource.ai you can run amazon product data api free on the web, via [Chrome Extension](https://chromewebstore.google.com/detail/upc-lookup/pglhhlcbcbmfebnagjgmbchpmgokbmpb)Chrome Extensionhttps://chromewebstore.google.com/detail/upc-lookup/pglhhlcbcbmfebnagjgmbchpmgokbmpb, or through our barcode lookup API/upc-lookup across 1.6B+ indexed products. Use the free search on [ecomsource.ai](https://www.ecomsource.ai)ecomsource.aihttps://www.ecomsource.ai or read the related sections above for step-by-step workflows tied to Product Intelligence.
Upc to asin mapping tool?
Searchers looking for upc to asin mapping tool usually need fast, accurate product identification — not a generic description. EcomSource supports this query as part of unified UPC, EAN, GTIN, and ISBN lookup/upc-lookup with Amazon catalog mapping, variation trees, and bulk batch endpoints. Use the free search on [ecomsource.ai](https://www.ecomsource.ai)ecomsource.aihttps://www.ecomsource.ai or read the related sections above for step-by-step workflows tied to Product Intelligence.
Asin to upc converter?
Asin to upc converter is one of the highest-intent searches in product data — and it is exactly what this guide on *EcomSource* helps you solve. Sellers and developers use asin to upc converter to identify products, validate supplier manifests, and connect barcodes to Amazon ASINs. With EcomSource.ai you can run asin to upc converter free on the web, via [Chrome Extension](https://chromewebstore.google.com/detail/upc-lookup/pglhhlcbcbmfebnagjgmbchpmgokbmpb)Chrome Extensionhttps://chromewebstore.google.com/detail/upc-lookup/pglhhlcbcbmfebnagjgmbchpmgokbmpb, or through our barcode lookup API/upc-lookup across 1.6B+ indexed products. Use the free search on [ecomsource.ai](https://www.ecomsource.ai)ecomsource.aihttps://www.ecomsource.ai or read the related sections above for step-by-step workflows tied to Product Intelligence.
Best amazon product data api 2026?
Best amazon product data api 2026 is one of the highest-intent searches in product data — and it is exactly what this guide on *EcomSource* helps you solve. Sellers and developers use best amazon product data api 2026 to identify products, validate supplier manifests, and connect barcodes to Amazon ASINs. With EcomSource.ai you can run best amazon product data api 2026 free on the web, via [Chrome Extension](https://chromewebstore.google.com/detail/upc-lookup/pglhhlcbcbmfebnagjgmbchpmgokbmpb)Chrome Extensionhttps://chromewebstore.google.com/detail/upc-lookup/pglhhlcbcbmfebnagjgmbchpmgokbmpb, or through our barcode lookup API/upc-lookup across 1.6B+ indexed products. Use the free search on [ecomsource.ai](https://www.ecomsource.ai)ecomsource.aihttps://www.ecomsource.ai or read the related sections above for step-by-step workflows tied to Product Intelligence.
Best amazon product data api 2026 comparison?
Searchers looking for best amazon product data api 2026 comparison usually need fast, accurate product identification — not a generic description. EcomSource supports this query as part of unified UPC, EAN, GTIN, and ISBN lookup/upc-lookup with Amazon catalog mapping, variation trees, and bulk batch endpoints. Use the free search on [ecomsource.ai](https://www.ecomsource.ai)ecomsource.aihttps://www.ecomsource.ai or read the related sections above for step-by-step workflows tied to Product Intelligence.
Amazon product advertising api real-time 2026?
Searchers looking for amazon product advertising api real-time 2026 usually need fast, accurate product identification — not a generic description. EcomSource supports this query as part of unified UPC, EAN, GTIN, and ISBN lookup/upc-lookup with Amazon catalog mapping, variation trees, and bulk batch endpoints. Use the free search on [ecomsource.ai](https://www.ecomsource.ai)ecomsource.aihttps://www.ecomsource.ai or read the related sections above for step-by-step workflows tied to Product Intelligence.
Asin to upc finderasin to upc?
Searchers looking for asin to upc finderasin to upc usually need fast, accurate product identification — not a generic description. EcomSource supports this query as part of unified UPC, EAN, GTIN, and ISBN lookup/upc-lookup with Amazon catalog mapping, variation trees, and bulk batch endpoints. Use the free search on [ecomsource.ai](https://www.ecomsource.ai)ecomsource.aihttps://www.ecomsource.ai or read the related sections above for step-by-step workflows tied to Product Intelligence.
Step-by-step: run your first lookup after reading this guide
- 1Copy a UPC, EAN, GTIN, ISBN, or ASIN from packaging or your supplier sheet.
- 2Open [ecomsource.ai](/) or a dedicated tool page ([UPC lookup](/upc-lookup), [barcode lookup](/barcode-lookup), [GTIN](/gtin-lookup), [ISBN](/isbn-lookup)).
- 3Paste the code and search — results include brand, title, images, and Amazon identifiers.
- 4For lists of 20+ codes, use [bulk barcode lookup](/bulk-barcode-lookup) via the API ([docs](/docs)).
- 5Pin the [Chrome Extension](https://chromewebstore.google.com/detail/upc-lookup/pglhhlcbcbmfebnagjgmbchpmgokbmpb) for on-page Amazon/Walmart lookups.
Why EcomSource for barcode & UPC data
Competitors excel at single-purpose pages; EcomSource combines free online lookup, Amazon-native ASIN mapping, variation intelligence, and real-time bulk barcode lookup in one platform. If you are outgrowing BarcodeLookup pricing, Go-UPC email bulk turnaround, or EAN-Search rate limits, start with a free account/signup and run your first asin to upc api in seconds.
Try free UPC & barcode lookup →/
Get API keys for bulk search →/signup
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