Catalog API

Name: Catalog API API
Brand: Catalog API
Availability: InStock

✓ Official Vendor SpecE CommerceStorefrontoauth22 EndpointsREST

For Agents

Search eBay's product catalog by keyword or retrieve product details by ePID. Returns structured product data including titles, images, and item specifics for listing creation.

Quickstart

Get started with Catalog API in minutes using your preferred integration method.

# Add to your MCP client config (Claude Desktop, Cursor, Windsurf)
{
  "jentic": {
    "url": "https://api.jentic.com/mcp",
    "auth": "oauth"
  }
}

# Then ask your agent:
"search eBay product catalog by keyword"

# → Jentic returns the GET /events tool with parameter schema, agent executes.

Capabilities

What an agent can do with Catalog API API.

Search eBay's product catalog by keyword, GTIN, or category to find matching products

Retrieve complete product details by ePID including aspects, images, and item specifics

Match seller inventory to eBay catalog entries for pre-filled listing creation

Filter catalog search results by category, aspect refinements, and product identifiers

GET STARTED

Start building with Catalog API API

Explore with Jentic

View OpenAPI Document

Use Cases

Patterns agents use Catalog API API for, with concrete tasks.

★ AI Agent Catalog Matching

AI agents use the eBay Catalog API through Jentic to automatically match seller inventory to eBay's product catalog. When a seller provides a UPC, ISBN, or product title, the agent searches the catalog, identifies the exact product match, and retrieves all structured attributes needed to create a pre-filled listing — eliminating manual data entry for item specifics, titles, and images.

Search the eBay catalog for products matching UPC 194252056227 and retrieve the top match's ePID, title, and item specifics

Bulk Listing Data Enrichment

Enrich bulk product feeds with eBay catalog data before creating listings. For each item in a seller's inventory file, search the catalog by GTIN or keyword to find the matching ePID, then retrieve standardized titles, descriptions, images, and aspect values. This ensures all listings have complete, accurate information that complies with eBay's structured data requirements.

For a product with title 'Apple AirPods Pro 2nd Generation', search the catalog to find the matching ePID and retrieve all available item specifics

Category and Aspect Discovery

Discover valid eBay categories and their required aspects before listing products. The catalog search endpoint returns aspect refinements that indicate which product attributes are available for filtering. Use this to build category-aware listing tools that prompt sellers for the right item specifics based on their product type.

Search the catalog for 'wireless headphones' and retrieve the available aspect refinements including brand, connectivity, and color options

Key Endpoints

2 endpoints — look up and search ebay's product catalog to find exact matches for items sellers want to list.

METHOD

PATH

DESCRIPTION

GET

/product/{epid}

Get product details by eBay Product ID

GET

/product_summary/search

Search catalog products by keyword, GTIN, or category

GET

/product/{epid}

Get product details by eBay Product ID

GET

/product_summary/search

Search catalog products by keyword, GTIN, or category

Why though Jentic?

Three things that make agents converge on Jentic-routed access.

Credential isolation

eBay OAuth 2.0 tokens are stored encrypted in the Jentic vault (MAXsystem). Agents receive pre-authenticated requests — token refresh, scope management, and marketplace headers are handled automatically.

Intent-based discovery

Agents search by intent (e.g., 'find eBay catalog product by UPC') and Jentic returns the matching Catalog API operation with parameter schemas, so the agent constructs the right query without navigating eBay's developer portal.

Time to first call

Direct eBay Catalog API integration: 2-4 days for OAuth flow, marketplace configuration, and response parsing. Through Jentic: under 30 minutes — search, load schema, execute.

Related APIs

Alternatives and complements available in the Jentic catalogue.

Complementary

Shopify REST Admin API

Manage product catalogs on Shopify storefronts to sync with eBay listings

Use alongside the eBay Catalog API when sellers maintain a Shopify store and want to cross-list products on eBay with catalog-matched structured data.

Complementary

eBay Trading API

Create and manage eBay listings after finding catalog matches

Use the Trading API to actually create listings after the Catalog API identifies the correct ePID and item specifics for product matching.

Complementary

Magento REST API

Source product data from Magento catalogs for eBay cross-listing

Use when sellers run Magento stores and want to enrich their product feeds with eBay catalog data before creating multi-channel listings.

FAQs

Specific to using Catalog API API through Jentic.

What authentication does the eBay Catalog API use?

The eBay Catalog API requires OAuth 2.0 bearer tokens with the commerce.catalog.readonly scope. Through Jentic, your OAuth tokens are stored encrypted in the MAXsystem vault — agents receive pre-authenticated requests without handling the OAuth flow or token refresh directly.

Can I search the eBay catalog by UPC or ISBN?

Yes. The GET /product_summary/search endpoint accepts a gtin filter parameter for UPC, EAN, and ISBN lookups. Pass the barcode value and the API returns matching catalog products with their ePIDs, titles, and images. This is the fastest path to an exact product match.

What are the rate limits for the eBay Catalog API?

The Catalog API follows eBay's standard rate limits of 5000 calls per day per application for the product_summary/search endpoint and 5000 calls per day for the product/{epid} endpoint. Rate limit headers (X-EBAY-C-MARKETPLACE-ID) are returned with each response.

How do I retrieve product details for listing creation through Jentic?

Search Jentic for 'look up eBay catalog product by ID' to discover the GET /product/{epid} operation. Pass the ePID and receive structured JSON with the product title, description, images, and all item specifics. These fields map directly to eBay listing creation parameters.

What data does the catalog product response include?

A product response includes the ePID, title, description, primary and additional images, product identifiers (UPC, ISBN, ePID), aspect values (brand, model, color, size), and the eBay category assignment. This pre-fills most required listing fields automatically.

Is the eBay Catalog API available in all marketplaces?

The Catalog API supports eBay's major marketplaces including US (EBAY_US), UK (EBAY_GB), Germany (EBAY_DE), and Australia (EBAY_AU). Set the X-EBAY-C-MARKETPLACE-ID header to target a specific marketplace. Product catalog coverage varies by marketplace.