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Connect AI agents to eBay deal API with MCP server

David AshbyDavid Ashby
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2/3/2026
integrationautomationwebhookutilitydata-processing
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Complete MCP server exposing 4 Deal API operations to AI agents.

⚡ Quick Setup

  1. Import this workflow into your n8n instance
  2. Credentials Add Deal API credentials
  3. Activate the workflow to start your MCP server
  4. Copy the webhook URL from the MCP trigger node
  5. Connect AI agents using the MCP URL

🔧 How it Works

This workflow converts the Deal API into an MCP-compatible interface for AI agents.

• MCP Trigger: Serves as your server endpoint for AI agent requests • HTTP Request Nodes: Handle API calls to https://api.ebay.com{basePath} • AI Expressions: Automatically populate parameters via $fromAI() placeholders • Native Integration: Returns responses directly to the AI agent

📋 Available Operations (4 total)

🔧 Deal_Item (1 endpoints)

• GET /deal_item: List Deal Items

🔧 Event (2 endpoints)

• GET /event: List Event Items • GET /event/{event_id}: This method retrieves the details for an eBay event

🔧 Event_Item (1 endpoints)

• GET /event_item: This method returns a paginated set of event items

🤖 AI Integration

Parameter Handling: AI agents automatically provide values for: • Path parameters and identifiers • Query parameters and filters • Request body data • Headers and authentication

Response Format: Native Deal API responses with full data structure

Error Handling: Built-in n8n HTTP request error management

💡 Usage Examples

Connect this MCP server to any AI agent or workflow:

• Claude Desktop: Add MCP server URL to configuration • Cursor: Add MCP server SSE URL to configuration • Custom AI Apps: Use MCP URL as tool endpoint • API Integration: Direct HTTP calls to MCP endpoints

✨ Benefits

• Zero Setup: No parameter mapping or configuration needed • AI-Ready: Built-in $fromAI() expressions for all parameters • Production Ready: Native n8n HTTP request handling and logging • Extensible: Easily modify or add custom logic

> 🆓 Free for community use! Ready to deploy in under 2 minutes.

Connect AI Agents to eBay Deal API with MCP Server

This n8n workflow demonstrates how to integrate AI agents with the eBay Deal API using the Model Context Protocol (MCP) Server. It acts as a foundational trigger, enabling AI agents to initiate workflows based on specific events or queries related to eBay deals.

What it does

This workflow provides a starting point for building AI-driven integrations with eBay:

  1. Listens for AI Agent Requests: The workflow is triggered by the Model Context Protocol (MCP) Server, which acts as an interface for AI agents. This means an AI agent can send requests or commands to this workflow.
  2. Serves as an Integration Point: It's designed to receive instructions or data from an AI agent, which can then be used to query the eBay Deal API or perform other actions.

Prerequisites/Requirements

  • n8n Instance: A running n8n instance where you can import and execute this workflow.
  • Model Context Protocol (MCP) Server: An MCP Server instance configured to communicate with your n8n setup. This is essential for AI agents to interact with the workflow.
  • eBay Developer Account (Optional): While not directly configured in this base workflow, you would need an eBay Developer Account and API keys to actually interact with the eBay Deal API in subsequent steps.

Setup/Usage

  1. Import the Workflow:
    • Download the provided JSON file for this workflow.
    • In your n8n instance, go to "Workflows" and click "New".
    • Click the three dots menu (⋮) in the top right and select "Import from JSON".
    • Paste the workflow JSON or upload the file.
  2. Configure the MCP Server Trigger:
    • The MCP Server Trigger node is already configured to listen for incoming requests.
    • Ensure your MCP Server is correctly set up to send requests to this n8n instance and this specific trigger.
  3. Extend the Workflow:
    • This workflow currently only has a trigger. To make it functional for connecting to the eBay Deal API, you will need to add more nodes after the MCP Server Trigger.
    • You would typically add nodes like:
      • HTTP Request node: To make calls to the eBay Deal API.
      • Data manipulation nodes: To process the input from the AI agent and format it for the eBay API, and to parse the response from eBay.
      • Response nodes: To send the results back to the AI agent via the MCP Server.
  4. Activate the Workflow: Once configured, activate the workflow by toggling the "Active" switch in the top right corner of the workflow editor.

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