# Expose eBay browse API for AI agents with MCP: n8n workflow

> Started by an event in a connected app. It calls services over plain HTTP rather than through connectors. 12 steps: a working afternoon to understand properly.

Source: https://millionrounds.com/workflow/expose-ebay-browse-api-for-ai-agents-with-mcp (Millionrounds; every figure on the page links to its filing or article)

[Automation library](https://millionrounds.com/workflows) · [Setup and learning](https://millionrounds.com/workflows?category=Setup+and+learning#library)

# Expose eBay browse API for AI agents with MCP

Started by an event in a connected app. It calls services over plain HTTP rather than through connectors. 12 steps: a working afternoon to understand properly.

Medium

[Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Fexpose-ebay-browse-api-for-ai-agents-with-mcp)

**12 steps** Medium: a working afternoon

**0** Branches: places the flow splits

**0** Loops or waits

**0** Services by connector: it calls them over plain HTTP

## The flow

Starts it 1 Service 11

The steps in the order they run, from what starts it.

- 1 **Retrieve Item Details** Http Request Tool *Service*
- 2 **Retrieve Item by Legacy ID** Http Request Tool *Service*
- 3 **Retrieve Items in Group** Http Request Tool *Service*
- 4 **Retrieve Item by ID** Http Request Tool *Service*
- 5 **Check Item Compatibility** Http Request Tool *Service*
- 6 **Search Item Summaries** Http Request Tool *Service*
- 7 **Search Items by Image** Http Request Tool *Service*
- 8 **Retrieve Shopping Cart** Http Request Tool *Service*
- 9 **Add Item to Cart** Http Request Tool *Service*
- 10 **Remove Item from Cart** Http Request Tool *Service*
- 11 **Update Cart Item Quantity** Http Request Tool *Service*
- 12 **Browse MCP Server** Mcp trigger *Starts it*

## How it's built

- **Starts on:** An event in a connected app
- **Steps:** 12
- **Size:** Medium: a working afternoon
- **Connects to:** Nothing by connector; it calls services over plain HTTP
- **Model:** None. This is plumbing, not judgement

## Questions

What does it need to run?

An n8n account. You connect your own accounts after importing it; none are included.

What starts it?

It starts on an event in a connected app.

Does it use AI?

No. Every step is fixed logic or a call to a service, so it does the same thing every time.

How long does it take to set up?

Plan an afternoon. 12 steps is enough that you should read each one before running it.

How do I import it?

Copy the workflow, open a new workflow in n8n and paste. The steps appear on the canvas, ready for your own accounts.

**Before you run it**

Nothing here has been tested by us. It is somebody's working automation, read and described from its own steps. Treat the connections it wants as a list of accounts it will touch, and read the 12 steps before you point it at anything that matters.

## Run it in n8n

- **Create your n8n account** Free to start. n8n is where the workflow runs. [Create an n8n account ↗](https://millionrounds.com/n8n)
- **Download the workflow** Free with a Millionrounds account. [Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Fexpose-ebay-browse-api-for-ai-agents-with-mcp)
- **Paste it into n8n** Open a new workflow in n8n and paste. Then connect your own accounts.

Stored with the author's traces removed: canvas notes, instance identifiers, saved credential names and any live document they had left behind.

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