Find deals across Facebook Marketplace, eBay, Depop, and Poshmark without leaving your AI assistant.
Three steps to smarter secondhand shopping
Add Secondhand MCP as a connector in Claude or ChatGPT. One-time setup, takes 30 seconds.
Just ask your AI to find items. "Search for a mid-century coffee table under $200 in SF."
Get real-time results from multiple marketplaces, with full details, photos, and seller info.
Start for free. Upgrade when you need more.
Connect your AI assistant and start finding deals
Everything else, quickly
A connector (MCP server) that lets Claude and ChatGPT search Facebook Marketplace, eBay, Depop, and Poshmark. You describe what you want in plain language; your AI searches with real filters and returns actual listings with photos, prices, and seller info.
No — Facebook Marketplace, Depop, and Poshmark need nothing. eBay optionally uses your own free eBay developer keys. Signing in to the service is a normal email or Google login.
Yes: 10 searches, 6 full listing views, and 5 deep research queries every month, free forever, no credit card. Pro is $5/mo and Pro+ is $10/mo.
No. Secondhand MCP is strictly read-only — it searches and fetches listing details. Purchases and messages stay on the marketplace, in your hands.
Yes. ChatGPT cannot browse Facebook Marketplace on its own, but Secondhand Marketplace in the plugin directory gives it a search tool that can. Install it, connect, then ask for what you want in plain language and ChatGPT comes back with live listings, prices and photos. Free tier included, no card.
Yes. Claude has no built-in access to eBay, but with Secondhand MCP connected it searches eBay through the official eBay API and returns real listings with prices, condition and direct links. No API keys or setup needed on your side.
Claude (claude.ai, Claude Desktop, mobile apps), ChatGPT (in the plugin directory as Secondhand Marketplace, plus Deep Research), Cursor, and any MCP-compatible client.
Yes — the same server is on GitHub and npm (secondhand-mcp), MIT-licensed, and runs locally with Node.js. The hosted version adds zero-install setup, OAuth, and no Chrome requirement.