MarketMaster MCP

A read-only MCP server providing programmatic access to cross-platform prediction market data from Kalshi and Polymarket. It exposes six tools to retrieve mispriced market edges, normalized market snapshots, arbitrage opportunities, whale trade feeds, and market status via REST or real-time WebSocket streaming.

Visit MarketMaster

Package and access

Local package with source-attributed installation metadata. Koskamo does not execute packages during review.

Vendor evidenceLocal stdioSource reviewed; not executedOperated by MarketMaster

You need:Get your API key

Vendor documentation

What you can do with it

Fetch top mispriced markets across Kalshi and Polymarket
Retrieve cross-platform arbitrage opportunities
Subscribe to real-time whale trade updates
Get normalized market snapshots and status

Source and maintenance

Vendor evidenceRegistry 0.1.4

mcp-registry: live.marketmaster/mcp@0.1.4 Project website

Packages and installation

Source-provided package data. Koskamo has not executed or live-probed this package.

@marketmaster/mcp 0.1.3

npm

@marketmaster/mcp package definition

{
  "version": "0.1.3",
  "transport": "stdio",
  "identifier": "@marketmaster/mcp",
  "registryType": "npm",
  "environmentVariables": [
    {
      "name": "MARKETMASTER_API_KEY",
      "isRequired": true,
      "description": "API key from https://marketmaster.live/dashboard (looks like mmk_live_...). Free tier available."
    }
  ]
}

Tools

Reported by the attributed source; not independently observed by Koskamo.

No tool definitions available.

Connect from your client

Each snippet configures the same source-provided package; replace placeholders before use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Cursor

Merge this local stdio configuration, replace every placeholder environment value, and restart Cursor. Koskamo has not executed this package.

Cursor configuration

{
  "mcpServers": {
    "marketmaster-mcp-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@marketmaster/mcp@0.1.3"
      ],
      "env": {
        "MARKETMASTER_API_KEY": "<YOUR_MARKETMASTER_API_KEY>"
      }
    }
  }
}

Cline

Merge this local stdio configuration, replace every placeholder environment value, and restart Cline. Koskamo has not executed this package.

Cline configuration

{
  "mcpServers": {
    "marketmaster-mcp-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@marketmaster/mcp@0.1.3"
      ],
      "env": {
        "MARKETMASTER_API_KEY": "<YOUR_MARKETMASTER_API_KEY>"
      }
    }
  }
}

VS Code

Merge this local stdio configuration, replace every placeholder environment value, and restart VS Code. Koskamo has not executed this package.

VS Code configuration

{
  "servers": {
    "marketmaster-mcp-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@marketmaster/mcp@0.1.3"
      ],
      "env": {
        "MARKETMASTER_API_KEY": "<YOUR_MARKETMASTER_API_KEY>"
      }
    }
  }
}

Claude Desktop

Merge this local stdio configuration, replace every placeholder environment value, and restart Claude Desktop. Koskamo has not executed this package.

Claude Desktop configuration

{
  "mcpServers": {
    "marketmaster-mcp-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@marketmaster/mcp@0.1.3"
      ],
      "env": {
        "MARKETMASTER_API_KEY": "<YOUR_MARKETMASTER_API_KEY>"
      }
    }
  }
}

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