MarketMaster MCP Server: Install & Setup

Install MarketMaster in Claude Code

Remote URL

Claude Code

claude mcp add --transport http marketmaster https://api.marketmaster.live/mcp

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

{
  "mcpServers": {
    "marketmaster": {
      "url": "https://api.marketmaster.live/mcp"
    }
  }
}

npm

Claude Code

claude mcp add marketmaster -e MARKETMASTER_API_KEY=... -- npx -y @marketmaster/mcp

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

{
  "mcpServers": {
    "marketmaster": {
      "command": "npx",
      "args": [
        "-y",
        "@marketmaster/mcp"
      ],
      "env": {
        "MARKETMASTER_API_KEY": "..."
      }
    }
  }
}

Replace each ... with your own value.

Frequently asked questions

What does the MarketMaster MCP server do?

Kalshi and Polymarket data: cross-venue matching, arbitrage after fees and whale trades; free key.

Is the MarketMaster MCP server free?

Yes, most likely. Open source and no paid account or API key is mentioned in the listing. Check the provider for current pricing.

Does MarketMaster run locally or remotely?

Local + Remote. Can run locally or be used as a hosted remote server.

How do I add MarketMaster to Claude Code?

Run: claude mcp add --transport http marketmaster https://api.marketmaster.live/mcp

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