Yes, Polymarket is free to use.

How do I install Polymarket?

Polymarket is a local plugin. Install it using PyPI package: polymarket-trading-mcp and add the generated configuration snippet to your AI app's MCP config file. Then restart your AI app.

What AI apps work with Polymarket?

Polymarket uses the Model Context Protocol (MCP) and works with any MCP-compatible AI app, including Claude, ChatGPT / Codex, Gemini, Copilot, Cursor, and more.

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Polymarket

by Whitmorelabs

Developer ToolsUse Caution4.2MCP RegistryLocal

Free

Server data from the Official MCP Registry

Trading intelligence tools for Polymarket: slippage, liquidity, arbitrage, price feeds

About

Trading intelligence tools for Polymarket: slippage, liquidity, arbitrage, price feeds

How to Install

Add this to your MCP configuration file:

{
  "mcpServers": {
    "io-github-whitmorelabs-polymarket-mcp": {
      "args": [
        "polymarket-trading-mcp"
      ],
      "command": "uvx"
    }
  }
}

Security Report

4.2

Use Caution4.2High Risk

Well-structured MCP server with proper API key authentication, comprehensive rate limiting, and permissions matching its stated purpose. Minor security concerns around admin CLI lacking authentication and a placeholder comment for arbitrary code execution, but no critical vulnerabilities. Supply chain analysis found 8 known vulnerabilities in dependencies (0 critical, 3 high severity). Package verification found 1 issue.

Scanned 6 files · 12 findings

Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.

Permissions Required

This plugin requests these system permissions. Most are normal for its category.

File System Read

Reads files on your machine. Normal for tools that analyze or process local data.

HTTP Network Access

Connects to external APIs or services over the internet.

env_vars

Check that this permission is expected for this type of plugin.

database

Check that this permission is expected for this type of plugin.

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