AI Polymarket Agent
Enable Claude, ChatGPT, and other AI agents to analyze markets, fetch real-time odds, and execute trades on Polymarket using the Model Context Protocol (MCP).
What is AI Polymarket Agent?
AI Polymarket Agent is a Model Context Protocol (MCP) server that allows AI assistants like Claude, Cursor, and VS Code to enable claude, chatgpt, and other ai agents to analyze markets, fetch real-time odds, and execute trades on polymarket using the model context protocol (mcp).
Enable Claude, ChatGPT, and other AI agents to analyze markets, fetch real-time odds, and execute trades on Polymarket using the Model Context Protocol (MCP).
This server falls under the Finance & Fintech category on MCPgee, the world's largest MCP server directory with 33,000+ servers.
Features
- Enable Claude, ChatGPT, and other AI agents to analyze marke
Use Cases
Maintainer
Works with
Installation
Manual Installation
npx ai-polymarket-agentConfiguration
Configuration Details
claude_desktop_config.json
Performance
Response Metrics
Resource Usage
How to Set Up and Use AI Polymarket Agent
The AI Polymarket Agent MCP server connects AI assistants like Claude and ChatGPT to Polymarket, the leading decentralized prediction market platform, enabling them to search active markets by keyword, retrieve real-time odds and order book data for any market, and optionally execute trades. By exposing Polymarket's API as MCP tools, the server lets you ask an AI to research prediction markets and report probabilities as a natural part of a conversation, without manually visiting the site or writing any API code. It is especially useful for researchers, traders, and decision-makers who want to incorporate crowd-sourced probability estimates into their AI workflows.
Prerequisites
- Node.js 18 or later installed
- An MCP-compatible client such as Claude Desktop or Cursor
- A Polymarket account if you intend to execute trades (optional for read-only market research)
- Basic familiarity with prediction markets and condition IDs
Clone or install the server
The server is available via npx for a zero-install run, or you can clone the repository and install dependencies manually.
npx ai-polymarket-agentInstall dependencies (if running from source)
If you cloned the repository, install the required Node.js packages including the MCP SDK and axios.
npm install @modelcontextprotocol/sdk axiosConfigure environment variables
Copy the example environment file and set the Polymarket API base URL. For trading, you will also need to add wallet credentials.
cp .env.example .env
# Edit .env and set:
# POLYMARKET_API_BASE=https://clob.polymarket.comAdd the server to your MCP client config
Register the server in your MCP client configuration so your AI assistant can discover and call its tools.
Test a market search
Ask your AI assistant to search for a topic on Polymarket to verify the search_markets tool is working.
AI Polymarket Agent Examples
Client configuration
Add this block to your claude_desktop_config.json to run the AI Polymarket Agent MCP server via npx.
{
"mcpServers": {
"ai-polymarket-agent": {
"command": "npx",
"args": ["ai-polymarket-agent"],
"env": {
"POLYMARKET_API_BASE": "https://clob.polymarket.com"
}
}
}
}Prompts to try
These prompts use the search_markets and get_market_odds tools to research prediction markets.
- "Search Polymarket for active markets about the 2026 US midterm elections and show me the current odds."
- "What is the probability that Bitcoin reaches $150,000 according to Polymarket?"
- "Find the top 5 most traded Polymarket markets right now and summarize their topics."
- "Get the order book data for Polymarket market ID 0x1234... and tell me the bid/ask spread."
- "Are there any Polymarket markets about AI regulation? Show me the current probabilities."Troubleshooting AI Polymarket Agent
search_markets returns no results
Polymarket only returns active, open markets. Try broader search terms (e.g., 'election' instead of a specific candidate name). The API may also have rate limits; wait a moment and retry.
get_market_odds fails with an invalid conditionId error
The conditionId must be the exact hexadecimal identifier for a Polymarket market, not the market title. Use search_markets first to find the correct conditionId, then pass it to get_market_odds.
Server starts but AI client shows no tools
Ensure the npx command resolves correctly by running 'npx ai-polymarket-agent' in a terminal and checking for startup errors. Confirm your MCP client config uses the exact command shown above and restart the client.
Frequently Asked Questions about AI Polymarket Agent
What is AI Polymarket Agent?
AI Polymarket Agent is a Model Context Protocol (MCP) server that enable claude, chatgpt, and other ai agents to analyze markets, fetch real-time odds, and execute trades on polymarket using the model context protocol (mcp). It connects AI assistants to external tools and data sources through a standardized interface.
How do I install AI Polymarket Agent?
Follow the installation instructions on the AI Polymarket Agent GitHub repository. Clone the repo, install dependencies, and add the server config to your AI client.
Which AI clients work with AI Polymarket Agent?
AI Polymarket Agent works with all major MCP-compatible AI clients including Claude Desktop, Claude Code, Cursor, VS Code (GitHub Copilot), Windsurf, and Cline.
Is AI Polymarket Agent free to use?
Yes, AI Polymarket Agent is open source and available under the MIT license. You can use it freely in both personal and commercial projects.
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Quick Config Preview
Add this to your claude_desktop_config.json or .cursor/mcp.json
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