Use the hosted connector for zero-install setup, or run the open-source server locally with npx — both work in Claude Desktop.
Claude Desktop supports both remote connectors and local MCP servers, so you have two options. The hosted connector is the fastest and needs no install; the open-source local server is free forever and runs on your machine (Depop/Poshmark scraping needs Chrome installed locally).
Takes about two minutes, once
In Claude Desktop: Settings → Connectors → Add custom connector, paste https://secondhandmcp.com/mcp, and complete the sign-in. Done — free tier included, no install.
Add this to claude_desktop_config.json (macOS: ~/Library/Application Support/Claude/):
{
"mcpServers": {
"secondhand": {
"command": "npx",
"args": ["-y", "secondhand-mcp"]
}
}
}Restart Claude Desktop and the tools appear automatically.For eBay search on the local server, add EBAY_CLIENT_ID and EBAY_CLIENT_SECRET from a free eBay developer account to the env block.
Ask Claude Desktop to find something: "Search for a used Fender Telecaster under $600."
If you just want it working, the hosted connector — 30 seconds, no dependencies. If you prefer running things yourself and have Node.js installed, the open-source local server is free and MIT-licensed.
Only for Depop and Poshmark, which are scraped through a headless browser. Facebook Marketplace and eBay work without Chrome.
Yes — MIT-licensed, no account, no limits from us. You supply the compute and optionally your own eBay API keys.