FeaturedMCP server · stdioRequires credentials

📊Polymarket

Browse and analyze Polymarket prediction markets from Claude. Read-only by default — can't spend money unless you give it a wallet.

What it does

A Model Context Protocol server that lets Claude interact with Polymarket, the prediction-market platform on Polygon. Built by Caio Vicentino, MIT-licensed.

What it gives Claude:

Market discovery: search active markets by topic, category, end date, volume
Real-time analysis: prices, order books, liquidity, recent trades
AI-powered insights: summarize a market thesis, compare related markets, surface anomalies
Position tracking + portfolio management (wallet mode only)
Order placement on the Polygon network (wallet mode only)
Real-time trade notifications via webhook (wallet mode only)

Two install modes:

Read-only — no Polygon wallet, can't spend money. Best for browsing, analysis, and testing.
Full wallet access — bring your own Polygon wallet credentials; unlocks order placement, portfolio sync, and live notifications. Real money on the line.

Heads up: this is not an official Polymarket project. Polymarket has not published an MCP server, so the entire MCP-Polymarket ecosystem on GitHub is community-built. This is the most-starred and most-maintained option, but always review the source before connecting a funded wallet.

Installation

Before you start

Read-only mode: no Polymarket account, wallet, or API keys. Once you install the server, Claude can immediately search and analyze every market on Polymarket — it's just making anonymous calls to Polymarket's public data API. Skip to install.

Full wallet mode — do these first:

Create a Polymarket account at polymarket.com. You'll need to verify your identity.
Set up a Polygon wallet (MetaMask works) connected to your Polymarket account.
Fund the wallet: a small amount of MATIC for gas, plus USDC.e (bridged USDC on Polygon) for the actual trading.
Generate API credentials in Polymarket → Settings → API. You'll get an API key, secret, and passphrase. Save them somewhere safe — you'll paste them into .env after install.

Polymarket is geofenced — US residents can't use the trading side. Read-only mode works everywhere.

👉 Stuck on the wallet part? Watch FULL MetaMask + Polymarket Tutorial for Beginners — a step-by-step video walkthrough of installing MetaMask, adding the Polygon network, getting USDC.e, and connecting it all to Polymarket.

1
Make sure Claude is on your device and in your terminal.
MCP servers register with Claude Code via claude mcp add. You need Claude Code installed first:
```
npm i -g @anthropic-ai/claude-code
```

Pick a mode and run its install.

Option 1Read-only

Browse + analyze every market on Polymarket. No wallet, no API keys, no chance of accidentally placing a trade.

Read-only

git clone ht•••••••••••••••••••••••••••••••••••••••••••••••••••••••• •• •• ••••••••••••••••••••• •• •••••••••••• ••••••

Option 2Full wallet access

Everything in read-only PLUS portfolio sync and the ability to place real on-chain trades with your wallet.

Full wallet access

git clone ht•••••••••••••••••••••••••••••••••••••••••••••••••••••••• •• •• ••••••••••••••••••••• •• ••••••••••••

Real money. Claude can place orders without a confirmation step. Use a dedicated trading wallet — never your main one — and only fund it with what you can afford to lose.

Configure credentials.
Read-only mode needs nothing. Wallet mode requires a Polygon wallet private key + USDC.e for trading. Generate API keys in Polymarket settings → API.
Restart Claude Code.
Quit and reopen Claude Code so it picks up the new MCP registration. Run /mcp inside Claude Code to confirm the server is connected.
Use it.
Ask Claude naturally. It will call the server's tools when your request matches one. Tool calls show up inline so you can see exactly what Claude is doing.

Prefer to read the source first? Open on GitHub.