MCP server · Underdog

Underdog MCP servers

Two remote MCP endpoints served from Underdog's own storefront host (Shopify platform). The UCP commerce server exposes 13 Universal Commerce Protocol shopping tools; the storefront server exposes one policy/FAQ question-answering tool. Both answer initialize and tools/list anonymously.

Open endpoint → Underdog provider profile

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Provider: Underdog Type: Hosted endpoint Transport: streamable-http (JSON-RPC 2.0 over HTTP POST) Host: underdog.shop

Endpoint

https://underdog.shop/api/ucp/mcp

Hosted endpoint · transport streamable-http (JSON-RPC 2.0 over HTTP POST)

Connect

This is a remote MCP server — point an MCP client at the endpoint URL. Clients with native remote support (Claude, Cursor, VS Code, …):

# mcp client config (e.g. .mcp.json / mcp settings) { "mcpServers": { "underdog": { "url": "https://underdog.shop/api/ucp/mcp" } } }

For stdio-only clients (older Claude Desktop, etc.), bridge with mcp-remote:

# Add to claude_desktop_config.json { "mcpServers": { "underdog": { "command": "npx", "args": ["-y", "mcp-remote", "https://underdog.shop/api/ucp/mcp"] } } }

If the server requires authentication, add the provider's token/header (e.g. an X-API-Key) per its docs. A quick reachability check:

curl -i -X POST https://underdog.shop/api/ucp/mcp \ -H "Content-Type: application/json" -H "Accept: application/json, text/event-stream" \ -d '{"jsonrpc":"2.0","id":1,"method":"tools/list"}'

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