AI Agent Integration with eBay Buy Marketing API

This n8n workflow creates a complete MCP (Model Context Protocol) server that bridges the eBay Buy Marketing API with AI agents. It specifically handles the GET /merchandised_product operation, allowing AI tools to fetch merchandised products directly through a webhook endpoint. By converting native eBay API calls into an AI-friendly interface, it simplifies access to marketing data without custom coding.

The workflow uses an MCP Trigger node as the entry point, HTTP Request nodes to interact with https://api.ebay.com/buy/marketing/v1_beta, and AI Expressions like $fromAI() for dynamic parameter handling. It supports path parameters, query filters, request bodies, and headers automatically provided by AI agents. Built-in error handling ensures robust responses in native eBay format.

Benefits include rapid setup for AI-driven eBay marketing tasks, time-saving automation, and seamless compatibility with tools like Claude Desktop, Cursor, or custom apps. Use cases: Automate product merchandising analysis, integrate into AI workflows for e-commerce insights, or enable real-time data fetching in agentic systems—ideal for sellers optimizing listings and campaigns.