eBay Metadata API MCP Server for AI Agents

This n8n workflow creates a complete MCP (Model Context Protocol) server that transforms eBay's Metadata API into an AI-agent-friendly interface. It handles 8 key operations, including sales tax jurisdictions by country and marketplace-specific policies for automotive parts compatibility, extended producer responsibility, hazardous materials labels, item conditions, listing structures, and negotiated prices. By using an MCP trigger node as the endpoint, it receives requests from AI agents, dynamically populates parameters with AI expressions like $fromAI(), and proxies HTTP requests to eBay's API at https://api.ebay.com.

Setup is straightforward: import the workflow, add eBay Metadata API credentials, activate it, copy the webhook URL from the MCP trigger, and connect your AI agents. No custom coding required—the workflow natively returns structured responses directly to the agents, enabling real-time data retrieval without managing API complexities.

Ideal for e-commerce developers, AI automation builders, and marketplace managers needing quick compliance checks or policy data. Benefits include time savings on API integration, reduced development overhead, and enhanced AI capabilities for dynamic listing optimization, regulatory adherence, and automated decision-making in sales strategies.