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Polymarket MCP Tool

Polymarket MCP Tool

A Model Context Protocol (MCP) tool for interacting with Polymarket through Claude Desktop.

Prerequisites

  • Claude Desktop App for Mac
  • Python 3.8+

Installation

  1. Clone this repository:
git clone https://github.com/fernandezpablo85/polymarket-mcp.git cd polymarket-mcp
  1. Install uv if you haven't already:
curl -LsSf https://astral.sh/uv/install.sh | sh
  1. Install dependencies:
uv sync

Configure Claude Desktop

  1. Open Claude Desktop configuration directory:
open ~/Library/Application\ Support/Claude
  1. Create or edit claude_desktop_config.json:
touch ~/Library/Application\ Support/Claude/claude_desktop_config.json
  1. Add the following configuration:
{ "mcpServers": { "polymarket": { "command": "/Users/YOUR_USERNAME/.local/bin/uv", "args": [ "--directory", "/Users/YOUR_USERNAME/projects/polymarket-mcp", "run", "main.py" ] } } }

Replace YOUR_USERNAME with your actual macOS username.

Usage

Invoke the tool via Claude Desktop.

Troubleshooting

  • If tools don't appear in Claude Desktop:
    • Verify your claude_desktop_config.json is correct
    • Restart Claude Desktop
    • Check your Python path and dependencies
  • If authentication fails:
    • Verify your .env file has correct credentials
    • Check Polymarket API status

License

MIT

Contributing

Feel free to open issues or submit pull requests.

Install Server
A
security – no known vulnerabilities
A
license - permissive license
A
quality - confirmed to work

local-only server

The server can only run on the client's local machine because it depends on local resources.

A Model Context Protocol server that enables interaction with Polymarket prediction markets through Claude Desktop.

  1. Prerequisites
    1. Installation
      1. Configure Claude Desktop
        1. Usage
          1. Troubleshooting
            1. License
              1. Contributing

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