How to Use EcomSource.ai: The Complete Guide for Sellers, Developers & Sourcing Teams

Whether you're an FBA seller looking up your first UPC, a developer integrating product data into your app, or an enterprise sourcing team automating catalog enrichment — this guide covers everything you need to know about using EcomSource.ai.

By the end, you'll know how to:

• Look up any product using ASIN, UPC, EAN, or GTIN
• Use the Chrome Extension for on-page intelligence
• Make your first API call
• Run bulk lookups at scale
• Automate sourcing with AI agents

Let's dive in.

1. Getting Started: Your Free Account

Head to ecomsource.ai/signup/signup and create your free account. No credit card required. You'll immediately get access to:

• 50 free daily lookups via the website and Chrome Extension
• Full product detail pages with identifiers, variations, and specs
• Dashboard access to manage your API keys and usage

Your free tier resets every 24 hours — perfect for testing and small-scale research.

2. Looking Up Products on the Website

The fastest way to use EcomSource is the search bar on the homepage. Here's how:

Search by ASIN

1. 1Go to [ecomsource.ai](/)
2. 2Enter any Amazon ASIN (e.g., `B0BTJD6LCL`)
3. 3Select "ASIN" as the identifier type
4. 4Hit Search

You'll get a full product detail page with:

• Product title, brand, and category
• All identifiers — UPC, EAN, GTIN mapped to that ASIN
• Images and bullet points
• Dimensions and weight (item and package)
• Variation data — every color, size, and style variant
• Sales rank and category ranking

Search by UPC or EAN

Already have a barcode? Enter the UPC (e.g., 012345678901) or EAN and select the matching identifier type. EcomSource will resolve it to the matching Amazon ASIN(s) and show you the full product data.

Search by GTIN

GTIN-13 and GTIN-14 codes work too. Just paste them in and select "GTIN" — we'll handle the rest.

3. Using the Chrome Extension

The EcomSource UPC Lookup Extension lets you see product identifiers and data *directly on Amazon and Walmart pages* without leaving your browser.

Installation

1. 1Visit the [Chrome Web Store](https://chromewebstore.google.com/detail/upc-lookup/pglhhlcbcbmfebnagjgmbchpmgokbmpb)
2. 2Click "Add to Chrome"
3. 3Pin the extension to your toolbar

How It Works

• Browse any Amazon product page — the extension automatically detects the ASIN
• Click the extension icon to see the UPC, EAN, and variation data
• View all variations of that product without navigating away
• 50 free lookups per day — no login required for basic use

Pro Tips for the Extension

• Bulk browse: Open multiple Amazon tabs and click through them — the extension caches results for faster repeat lookups
• Walmart support: It works on Walmart product pages too, resolving UPCs back to Amazon ASINs
• Quick copy: Click any identifier to copy it to your clipboard instantly

4. The Dashboard: Your Command Center

After signing in, your dashboard/dashboard gives you full control:

Overview Tab

See your current plan, usage stats, and quick-access links to all features.

API Keys Tab

• Generate API keys — create an Access Key and Secret Key pair
• Manage keys — revoke or regenerate keys as needed
• Copy with one click — paste directly into your code or Postman

Subscription Tab

• View your current plan and billing cycle
• Upgrade or downgrade between Free, Basic ($29.99/mo), and Pro ($79.99/mo)
• See your remaining API credits

Product Search Tab

• Run lookups directly from the dashboard
• View detailed product results in a structured table
• Export data for your records

5. Making Your First API Call

EcomSource provides a REST API at https://api.ecomsource.ai/api/v1/. Here's how to make your first call:

Step 1: Get Your API Keys

Go to your Dashboard → API Keys/dashboard and create a new key pair. You'll get:

• X-Access-Key: Your public access key
• X-Secret-Key: Your private secret key

Step 2: Single Product Lookup

curl -X POST https://api.ecomsource.ai/api/v1/search/product \
  -H "Content-Type: application/json" \
  -H "X-Access-Key: your_access_key" \
  -H "X-Secret-Key: your_secret_key" \
  -d '{
    "identifier": "B0BTJD6LCL",
    "identifierType": "asin",
    "region": "EU",
    "refresh": false
  }'

Step 3: Understand the Response

The API returns a comprehensive JSON object including:

• Basic info: title, brand, manufacturer, category
• Identifiers: ASIN, UPC, EAN, GTIN — all mapped
• Media: image URLs (main and gallery)
• Dimensions: item weight, package weight, item dimensions, package dimensions
• Variations: full list of parent/child ASINs with their attributes
• Rankings: sales rank, category BSR, subcategory rankings
• Bullet points: feature descriptions from the listing

Supported Identifier Types

Supported Regions

6. Bulk Lookups via API

Need to look up hundreds or thousands of products? Use the bulk endpoint:

curl -X POST "https://api.ecomsource.ai/api/v1/search/bulk?locale=US" \
  -H "Content-Type: application/json" \
  -H "X-Access-Key: your_access_key" \
  -H "X-Secret-Key: your_secret_key" \
  -d '[
    { "identifier": "B0BTJD6LCL", "identifierType": "asin" },
    { "identifier": "B0BTJD6LCX", "identifierType": "asin" },
    { "identifier": "012345678901", "identifierType": "upc" }
  ]'

Bulk Best Practices

• Batch size: Send up to 20 identifiers per request for optimal performance
• Rate limiting: The API supports high throughput — but space requests 100ms apart for stability
• Mixed types: You can mix ASINs, UPCs, and EANs in the same bulk request
• Error handling: Failed lookups return a null result with an error message — your batch won't fail because of one bad identifier

7. Real-Time Offers & Buy Box Data

Want live pricing? Use the offers endpoint:

curl -X POST https://api.ecomsource.ai/api/v1/search/offers \
  -H "Content-Type: application/json" \
  -H "X-Access-Key: your_access_key" \
  -H "X-Secret-Key: your_secret_key" \
  -d '{
    "identifier": "B0BTJD6LCL",
    "identifierType": "asin",
    "region": "EU",
    "countryCode": "UK"
  }'

This returns:

• Buy Box price and seller
• All active offers with prices, shipping, and condition
• FBA vs. FBM breakdown
• Offer count across new and used conditions

This is the same data that powers competitive pricing tools — now available directly via API.

8. Using EcomSource with Postman

We provide a ready-made Postman collection for easy testing:

1. 1Download our [Postman Collection](/ecomsource.ai-postman_collection.json)
2. 2Import it into Postman
3. 3Set the `access_key` and `secret_key` variables in the collection settings
4. 4Start making requests — all endpoints are pre-configured

The collection includes:

• Single Product Lookup — search by ASIN with full parameters
• Bulk Product Lookup — multi-product batch request
• Real-time Offers — live pricing and Buy Box data

9. Integration Patterns & Use Cases

For FBA Sellers

1. 1Product Research: Look up competitor ASINs to find their UPCs and source the same products
2. 2Catalog Matching: Match your inventory UPCs to Amazon ASINs before listing
3. 3Price Monitoring: Use the offers endpoint to track competitor pricing daily
4. 4Variation Mapping: Understand the full variation family before committing to a product line

For Developers

1. 1Build a product database: Pipe API results into your database for a custom product catalog
2. 2Power search features: Let users search by barcode and get rich product data
3. 3Feed AI models: Use structured product data to train recommendation engines
4. 4Automate enrichment: Enrich sparse product records with full Amazon data

For Enterprise & Sourcing Teams

1. 1Supplier verification: Cross-reference supplier UPCs against Amazon listings
2. 2Catalog enrichment: Fill in missing product attributes (dimensions, images, categories)
3. 3Market analysis: Analyze sales rankings across categories and regions
4. 4Compliance: Verify product identifiers match across marketplaces

10. Automating with AI Agents

EcomSource's API is designed to be consumed by AI sourcing agents. Here's a typical automation flow:

1. 1Agent receives a sourcing request — e.g., "Find profitable products in the Kitchen category under $25"
2. 2Agent queries EcomSource — searches by category, filters by price and sales rank
3. 3Agent analyzes variations — identifies which color/size variants sell best
4. 4Agent checks offers — gets real-time pricing and Buy Box data
5. 5Agent generates a report — recommends top products with profit margins

Example: Python Integration

API_URL = "https://api.ecomsource.ai/api/v1/search/product" HEADERS = { "Content-Type": "application/json", "X-Access-Key": "your_access_key", "X-Secret-Key": "your_secret_key" }

def lookup_product(asin): payload = { "identifier": asin, "identifierType": "asin", "region": "US" } response = requests.post(API_URL, json=payload, headers=HEADERS) return response.json()

# Look up a product product = lookup_product("B0BTJD6LCL") print(f"Title: {product['title']}") print(f"UPC: {product.get('upc', 'N/A')}") print(f"Sales Rank: {product.get('salesRank', 'N/A')}") ```

Example: JavaScript / Node.js Integration

const response = await fetch(
  "https://api.ecomsource.ai/api/v1/search/product",
  {
    method: "POST",
    headers: {
      "Content-Type": "application/json",
      "X-Access-Key": "your_access_key",
      "X-Secret-Key": "your_secret_key"
    },
    body: JSON.stringify({
      identifier: "B0BTJD6LCL",
      identifierType: "asin",
      region: "US"
    })
  }

const product = await response.json(); console.log(product); ```

Pricing Plans at a Glance

Tips for Getting the Most Out of EcomSource

1. 1Start with the free tier — test the search, explore the data, and try the Chrome Extension before committing
2. 2Use the Postman collection — fastest way to explore the API without writing code
3. 3Cache strategically — product catalog data changes slowly; cache it for 24-48 hours to reduce API calls
4. 4Use refresh sparingly — the `refresh: true` flag forces a live scrape which costs more credits; only use when you need the absolute latest data
5. 5Leverage variations — one parent ASIN lookup gives you data on dozens of child products
6. 6Monitor your usage — the dashboard shows real-time credit consumption so you never hit unexpected limits

Ready to Start?

Whether you need a quick UPC lookup or a full-scale product intelligence pipeline, EcomSource.ai has you covered.

• [Create your free account →](/signup)
• [Explore the API docs →](/docs)
• [Install the Chrome Extension →](https://chromewebstore.google.com/detail/upc-lookup/pglhhlcbcbmfebnagjgmbchpmgokbmpb)
• [View pricing plans →](/pricing)

1.6 Billion+ products. Real-time data. One API.

---

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
• b2b api — 52 impressions
• product data api — 36 impressions
• ecomsource — 10 impressions, 2 clicks
• is there an api for bulk document counting? — 6 impressions
• gtin vs upc — 43 impressions
• bulk api sourcing platform — 2 impressions
• what's the difference between a gtin and a regular barcode number? — 1 impressions
• what are some of the best open-source alternative tools for expensive amazon barcode fba services — 1 impressions

Related searches: UPC, barcode & product identifier keywords

This section expands on How to Use EcomSource.ai: The Complete Guide for Sellers, Developers & Sourcing Teams 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 code

Upc code is one of the highest-intent searches in product data — and it is exactly what this guide on *How to Use EcomSource.ai* 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/barcode-lookup across 1.6B+ indexed products.

Barcode lookup

Barcode lookup is one of the highest-intent searches in product data — and it is exactly what this guide on *How to Use EcomSource.ai* helps you solve. Sellers and developers use barcode lookup to identify products, validate supplier manifests, and connect barcodes to Amazon ASINs. With EcomSource.ai you can run barcode 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/barcode-lookup across 1.6B+ indexed products.

Barcode finder

Barcode finder is one of the highest-intent searches in product data — and it is exactly what this guide on *How to Use EcomSource.ai* helps you solve. Sellers and developers use barcode finder to identify products, validate supplier manifests, and connect barcodes to Amazon ASINs. With EcomSource.ai you can run barcode 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/barcode-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 *How to Use EcomSource.ai* 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/barcode-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 *How to Use EcomSource.ai* 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/barcode-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 *How to Use EcomSource.ai* 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/barcode-lookup across 1.6B+ indexed products.

Upc barcode lookup

Upc barcode lookup is one of the highest-intent searches in product data — and it is exactly what this guide on *How to Use EcomSource.ai* helps you solve. Sellers and developers use upc barcode lookup to identify products, validate supplier manifests, and connect barcodes to Amazon ASINs. With EcomSource.ai you can run upc barcode 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/barcode-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 *How to Use EcomSource.ai* 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/barcode-lookup across 1.6B+ indexed products.

Find barcode

Find barcode is one of the highest-intent searches in product data — and it is exactly what this guide on *How to Use EcomSource.ai* helps you solve. Sellers and developers use find barcode to identify products, validate supplier manifests, and connect barcodes to Amazon ASINs. With EcomSource.ai you can run find 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/barcode-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 *How to Use EcomSource.ai* 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/barcode-lookup across 1.6B+ indexed products.

Barcodelookup

Barcodelookup is one of the highest-intent searches in product data — and it is exactly what this guide on *How to Use EcomSource.ai* helps you solve. Sellers and developers use barcodelookup to identify products, validate supplier manifests, and connect barcodes to Amazon ASINs. With EcomSource.ai you can run barcodelookup 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/barcode-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 *How to Use EcomSource.ai* 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/barcode-lookup across 1.6B+ indexed products.

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.

Additional long-tail searches in this topic cluster

• amazon isbn search
• amazon upc codes
• get upc code for amazon
• what is upc on ebay
• what is upc in ebay
• amazon upc lookup
• amazon barcode lookup
• barcode lookup api
• api shoes
• barcode search api
• upcitemdb api barcode lookup
• gtin lookup api
• go upc api
• free barcode lookup api
• upc scanner for iphone

Free lookup tools on EcomSource.ai

• [BARCODE lookup tools](/barcode-lookup)
• [ASIN & UPC search](/amazon-product-data-api)
• [BULK lookup tools](/bulk-barcode-lookup)
• [API lookup tools](/product-data-api)
• [SCANNER 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 *How to Use EcomSource.ai* 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/barcode-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 Getting Started.

Bulk api sourcing platform?

Searchers looking for bulk api sourcing platform usually need fast, accurate product identification — not a generic description. EcomSource supports this query as part of unified UPC, EAN, GTIN, and ISBN lookup/barcode-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 Getting Started.

Amazon product advertising api official 2026?

Amazon product advertising api official 2026 is one of the highest-intent searches in product data — and it is exactly what this guide on *How to Use EcomSource.ai* helps you solve. Sellers and developers use amazon product advertising api official 2026 to identify products, validate supplier manifests, and connect barcodes to Amazon ASINs. With EcomSource.ai you can run amazon product advertising api official 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/barcode-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 Getting Started.

Amazon api product?

Amazon api product is one of the highest-intent searches in product data — and it is exactly what this guide on *How to Use EcomSource.ai* helps you solve. Sellers and developers use amazon api product to identify products, validate supplier manifests, and connect barcodes to Amazon ASINs. With EcomSource.ai you can run amazon api 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/barcode-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 Getting Started.

Upc vs ean vs gtin for selling products online differences how to choose?

Searchers looking for upc vs ean vs gtin for selling products online differences how to choose usually need fast, accurate product identification — not a generic description. EcomSource supports this query as part of unified UPC, EAN, GTIN, and ISBN lookup/barcode-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 Getting Started.

Universidad ean not for profit company gtin barcode?

Searchers looking for universidad ean not for profit company gtin barcode usually need fast, accurate product identification — not a generic description. EcomSource supports this query as part of unified UPC, EAN, GTIN, and ISBN lookup/barcode-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 Getting Started.

Amazon product advertising api current status 2026?

Amazon product advertising api current status 2026 is one of the highest-intent searches in product data — and it is exactly what this guide on *How to Use EcomSource.ai* helps you solve. Sellers and developers use amazon product advertising api current status 2026 to identify products, validate supplier manifests, and connect barcodes to Amazon ASINs. With EcomSource.ai you can run amazon product advertising api current status 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/barcode-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 Getting Started.

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 *How to Use EcomSource.ai* 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/barcode-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 Getting Started.

Barcode of a product?

Searchers looking for barcode of a product usually need fast, accurate product identification — not a generic description. EcomSource supports this query as part of unified UPC, EAN, GTIN, and ISBN lookup/barcode-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 Getting Started.

Barcode of product?

Searchers looking for barcode of product usually need fast, accurate product identification — not a generic description. EcomSource supports this query as part of unified UPC, EAN, GTIN, and ISBN lookup/barcode-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 Getting Started.

Step-by-step: run your first lookup after reading this guide

1. 1Copy a UPC, EAN, GTIN, ISBN, or ASIN from packaging or your supplier sheet.
2. 2Open [ecomsource.ai](/) or a dedicated tool page ([UPC lookup](/upc-lookup), [barcode lookup](/barcode-lookup), [GTIN](/gtin-lookup), [ISBN](/isbn-lookup)).
3. 3Paste the code and search — results include brand, title, images, and Amazon identifiers.
4. 4For lists of 20+ codes, use [bulk barcode lookup](/bulk-barcode-lookup) via the API ([docs](/docs)).
5. 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