Midas MCP Server (@midaslabs/mcp)

Trade crypto, equities, and prediction markets — and read your portfolio — directly from Claude, Cursor, or any MCP-compatible client, using the Midas AI trading tools.

@midaslabs/mcp is a small local server you run via npx. It bridges your MCP client to the hosted Midas MCP endpoint, authenticated by a Midas API key. No local wallet, no secrets beyond the key. Every tool runs against the Midas API as your account.

Quick start

1. Get an API key — in the Midas web app: Settings → API keys (Developer) → Create key. Copy the midas_live_… value (shown once).

2. Add it to your MCP client config:

   Claude Desktop (~/Library/Application Support/Claude/claude_desktop_config.json on macOS):

   {
     "mcpServers": {
       "midas": {
         "command": "npx",
         "args": ["-y", "@midaslabs/mcp"],
         "env": { "MIDAS_API_KEY": "midas_live_your_key_here" }
       }
     }
   }

   Cursor (.cursor/mcp.json in your project, or the global Cursor MCP settings):

   {
     "mcpServers": {
       "midas": {
         "command": "npx",
         "args": ["-y", "@midaslabs/mcp"],
         "env": { "MIDAS_API_KEY": "midas_live_your_key_here" }
       }
     }
   }

3. Restart the client. The Midas tools appear automatically.

What you can do

• "Show my portfolio" / "What's my P&L?"
• "What's the price of ETH?" / "Search for BONK"
• "Preview a swap of $100 USDC into SOL" → confirm to execute
• "Bet $50 on Brazil to win on Polymarket"
• "Open a 2x long on BTC perps"

The full tool set (prices, market data, portfolio/positions, swaps, perps, Polymarket, World Cup markets) is whatever the Midas server exposes — this package proxies all of them, so it stays in sync with the API automatically.

Trades require confirmation. Fund-moving actions (swaps, perps) return a preview; the agent confirms via a dedicated step before anything executes. This is enforced server-side.

Configuration

| Env var | Required | Default | Purpose | | --------------- | -------- | -------------- | --------------------------------------------------------------------------------------------------------------- | | MIDAS_API_KEY | yes | — | Your midas_live_… key. Missing → the server exits with a clear error. | | MIDAS_API_URL | no | the hosted API | Override the API base (e.g. http://localhost:3000 for local dev). The MCP endpoint is ${MIDAS_API_URL}/mcp. |

How it works

Claude / Cursor  ──stdio──►  @midaslabs/mcp (this package)  ──HTTPS + Bearer key──►  Midas /mcp

It's a thin bridge: it doesn't reimplement any trading logic. It connects to the hosted Midas MCP server as a client and proxies tools/list + tools/call through. So all tools, all auth, and all trade safety live on the server — this package just makes them reachable from a local stdio MCP client.

Troubleshooting

• "MIDAS_API_KEY … not set" — add the env block above with a real key.
• Tools don't appear — restart the MCP client after editing the config; check the key isn't revoked.
• Local dev — set MIDAS_API_URL=http://localhost:3000 and make sure the API (with the /mcp endpoint) is running.

Requirements

• Node.js ≥ 18.
• A Midas account + API key.