eBay Browse API vs PayPal MCP server for AI agents
eBay Browse API is eBay's Buy API for searching live eBay listings by keyword or category and fetching item details. PayPal MCP server is PayPal's remote MCP server, whose commerce tools let an agent search a PayPal product catalog, build a cart and check out with PayPal, for gift cards only today.
The short answer
- eBay Browse API: Approved eBay partners who want live new and used eBay listings with affiliate tracking.
- PayPal MCP server: Agents that need to buy gift cards end to end with PayPal payment.
Side by side
| eBay Browse API | PayPal MCP server | |
|---|---|---|
| Searches | Live eBay listings by keyword and category (plus image search in some markets), and item details by item ID. | Gift card products in the PayPal catalog only. |
| Returns | A subset of item details per search hit (more with the EXTENDED field group); full details come from getItem using the item ID. | Product information including pricing, availability and purchase options. |
| Before the first call | An eBay developer account (sandbox is open to anyone); production use of the Buy APIs is for eBay partners and needs an application through the eBay Partner Network, approved by business model. | PayPal client credentials from the PayPal Developer Dashboard, a PayPal login when the MCP client first connects, and the header x-feature-flags: commerce:true to show the commerce tools. |
| Acting on a result | Affiliate links through the eBay Partner Network (production apps must implement affiliate tracking); eBay member checkout via the separate checkout_session resource needs extra approval. | Checkout through the API: create_cart and checkout_cart complete the purchase and pay with PayPal. |
| Coverage | 16 eBay marketplaces: AT, AU, BE, CA, CH, DE, ES, FR, GB, HK, IE, IT, NL, PL, SG and US (image search only in US, DE, UK and AU). | Not stated on its pages |
| MCP server | No official server listed | Official remote MCP server at https://mcp.paypal.com (paths /sse or /http; sandbox at https://mcp.sandbox.paypal.com). |
Where Openpath fits
Openpath has no products listed yet. Sellers can list a product on Openpath today, free, and agents will find it through the same search as jobs and businesses. Get listed.
Questions people ask
What do I need before I can use eBay Browse API?
An eBay developer account (sandbox is open to anyone); production use of the Buy APIs is for eBay partners and needs an application through the eBay Partner Network, approved by business model.
Is eBay Browse API free?
Its pages listed no free use when we read them on October 15, 2026.
What do I need before I can use PayPal MCP server?
PayPal client credentials from the PayPal Developer Dashboard, a PayPal login when the MCP client first connects, and the header x-feature-flags: commerce:true to show the commerce tools.
Is PayPal MCP server free?
Its pages listed no free use when we read them on October 15, 2026.
Sources
Every line about another company comes from its own pages. Prices and terms change, so check the source before you rely on one.
eBay Browse API, read on October 15, 2026:
- developer.ebay.com/api-docs/buy/static/api-browse.html: “Using the Browse API, you can create a rich selection of items for your buyers to browse with keyword and category searches.”
- developer.ebay.com/api-docs/buy/static/api-browse.html: “For each item found, a subset of the item details is returned.”
- developer.ebay.com/api-docs/buy/static/buy-requirements.html: “The use of eBay’s Buy APIs in production is intended for eBay partners only.”
- developer.ebay.com/api-docs/buy/static/buy-requirements.html: “You must apply for production access through the eBay Partner Network.”
- developer.ebay.com/api-docs/buy/static/buy-requirements.html: “Acceptance of applications is based on the proposed business model”
- developer.ebay.com/api-docs/buy/static/buy-requirements.html: “Application must implement affiliate tracking details (needed for revenue share capability)”
- developer.ebay.com/api-docs/buy/static/buy-requirements.html: “To use the checkout_session resource, which supports eBay member checkout, you need approval.”
PayPal MCP server, read on October 15, 2026:
- developer.paypal.com/ai-tools/agent-tools: “Find gift card products in the PayPal catalog.”
- developer.paypal.com/ai-tools/agent-tools: “These tools are for gift cards only for now, but more is coming soon.”
- developer.paypal.com/ai-tools/agent-tools: “It returns product information that includes pricing, availability, and purchase options.”
- developer.paypal.com/ai-tools/agent-tools: “This tool processes the final checkout for a configured shopping cart using PayPal for payment.”
- developer.paypal.com/ai-tools/agent-tools: “x-feature-flags: commerce:true”
- developer.paypal.com/tools/mcp-server: “PayPal supports using your PayPal client credentials to connect to the remote MCP server.”
- developer.paypal.com/tools/mcp-server: “The MCP client sends you to the PayPal login page.”