io.github.demwick/polymarket-agent-mcp

Official

by demwick · TypeScript

Polymarket trading, market discovery, copy trading and backtesting — 48 MCP tools.

Polymarket Agent MCP Server

Polymarket Agent MCP Server provides MCP tooling for Polymarket trading, market discovery, copy trading, and backtesting. It exposes 48 MCP tools under the Model Context Protocol, with a focus on prediction markets and trading workflows. The project is associated with TypeScript/Node and related to web and blockchain integrations.

🛠️ Key Features

Trading
Market discovery
Copy trading
Backtesting
48 MCP tools

🚀 Use Cases

Discover Polymarket markets for analysis
Run copy-trading workflows
Perform historical backtesting
Support prediction-market trading agents

⚡ Developer Benefits

MCP server for Model Context Protocol
Tool set covering trading, discovery, copy trading, and backtesting
Written for TypeScript ecosystems
Includes developer-oriented categories such as websockets and blockchain

⚠️ Limitations

Limited to the scope described: Polymarket trading, discovery, copy trading, and backtesting

Topics

ai-agentcopy-tradingmcpmcp-serverpolymarketprediction-marketssmart-moneytradingtypescriptai-tradinganthropicblockchainclaudedefiportfolio-managementwebsocketmodel-context-protocol

README.md13 KBView on GitHub

Polymarket Agent MCP Server

Socket Badge OpenSSF Scorecard

Trade, analyze, and automate Polymarket prediction markets through AI.

The most comprehensive MCP server for Polymarket — 48 tools spanning direct trading, market discovery, smart money tracking, copy trading, backtesting, risk management, and portfolio optimization. Works with Claude Code, Cursor, or any MCP-compatible client.

Tool Overview

Category	Count	Highlights
Discovery	9	Search, trending, featured, events, related markets, smart money flow
Analysis	8	AI opportunity scoring, conviction rating, price history, market quality, top holders, comparison
Trading	8	Buy, sell, batch orders, limit orders, order management, safety limits
Copy Trading	5	Watch traders, auto-monitor, auto-rebalance, backtest
Portfolio	10	Positions, P&L, balance, risk assessment, SL/TP, optimization, market alerts
Utilities	8	Dashboard, config, trade history, watchlists, agent logging

Quick Start

npm Install

bash

npm install -g polymarket-agent-mcp

Docker

bash

docker compose up

Claude Code Config

Add to ~/.claude/settings.json:

json

{
  "mcpServers": {
    "polymarket": {
      "command": "npx",
      "args": ["polymarket-agent-mcp"]
    }
  }
}

Usage Examples

Just talk naturally to your AI assistant:

"What are the trending markets today?"

"Search for bitcoin prediction markets"

"Buy $5 on this market"

"Score this trader — should I copy them?"

"Backtest this trader with $10 per trade"

"Show smart money flow — what are the top traders buying?"

"Set stop-loss at 0.30 on my BTC position"

"Optimize my portfolio with a balanced strategy"

"Scan for arbitrage opportunities"

"Compare these two markets side by side"

All 48 Tools

Discovery

Tool	Description
`markets.search`	Search markets by keyword (bitcoin, election, UFC...)
`traders.discover`	Find top traders by PnL and volume
`markets.discover`	Find markets by end date and category
`markets.trending`	Top markets by 24h/7d/30d volume
`markets.featured`	Most liquid markets by category (politics, sports, crypto...)
`wta.discover`	WTA tennis markets with stink bid prices
`flow.discover`	Smart money signals — multiple top traders buying same market
`markets.related`	Find markets related to a topic or market
`markets.events`	Browse all markets under an event

Analysis

Tool	Description
`markets.analyze`	AI-powered BUY/SELL/HOLD recommendation
`traders.analyze`	Detailed trader profile, win rate, P&L
`traders.score`	Conviction score (0-100) across 5 dimensions
`markets.check`	Market quality — spread, depth, price range
`markets.price`	Live bid/ask/spread prices
`markets.price_history`	Historical prices with sparkline (1h to 1m)
`markets.holders`	Biggest position holders in a market
`markets.compare`	Side-by-side comparison of 2-5 markets

Trading

Tool	Description
`orders.buy`	Buy shares on any market
`orders.sell`	Sell an open position
`orders.batch`	Execute up to 10 orders at once
`wta.bid`	Place limit orders at discount
`orders.cancel`	Cancel all open orders
`orders.list`	View pending limit orders
`orders.status`	Check status of a specific order
`config.go_live`	Switch from preview to live mode

Copy Trading

Tool	Description
`watchlist.add`	Add/remove traders from watchlist
`monitor.start`	Start automatic copy trading loop
`monitor.stop`	Stop monitoring
`watchlist.rebalance`	Remove underperforming traders
`traders.backtest`	Simulate copying a trader's past trades

Portfolio & Risk

Tool	Description
`portfolio.balance`	Account balance, budget, and P&L
`portfolio.get`	Multi-wallet overview with P&L per trader
`positions.list`	Open/closed positions
`positions.close`	Manually close a position
`positions.set_exit_rules`	Set stop-loss and take-profit levels
`positions.check_exits`	Check positions for resolution
`portfolio.risk`	Portfolio risk scoring and warnings
`portfolio.optimize`	AI-powered optimization (conservative/balanced/aggressive)
`markets.watch`	Market watchlist with price alerts
`markets.watch_price`	Live WebSocket price subscriptions
`markets.arbitrage`	Find YES+NO price discrepancies

Configuration

Tool	Description
`config.set`	Update bot settings
`config.safety_limits`	Max order size, exposure cap, spread tolerance
`dashboard.get`	Terminal-formatted dashboard
`trades.history`	Trade history with filters
`watchlist.list`	Show watched wallets
`agent.log_cycle`	Log agent cycle for dashboard
`traders.positions`	View a trader's open positions

Architecture

code

Claude Code / Cursor / AI Client
        |
        | MCP Protocol (stdio)
        v
+------------------+
|  MCP Server      |  48 tools registered
|  (index.ts)      |
+--------+---------+
         |
    +----+----+
    |         |
 Tools    Services
    |         |
    v         v
+-------+ +------------+
| Zod   | | Backtester |
| Input | | Scorer     |
| Valid. | | SmartFlow  |
+-------+ | Filter     |
          | Tracker    |
          | Executor   |
          +-----+------+
                |
        +-------+-------+
        |       |       |
     Data    Gamma    CLOB
     API      API     API

HTTP Transport & Deployment

The server supports two transport modes:

Mode	Activation	Use case
stdio (default)	`npx polymarket-agent-mcp`	Claude Code, Cursor, local MCP clients
HTTP	`--http` flag or `PORT` env var	Self-hosted Docker, private VPS, single-user remote

Deployment model — read this first

This server is designed for single-tenant use. Each client runs its own instance with its own SQLite database (copytrader.db), watchlist, daily budget, trade history, and monitor loop. The stdio mode is the recommended path for most users — npx polymarket-agent-mcp or the Claude Code config above gives you a fully isolated, local-only instance.

⚠️ Do not expose an HTTP instance publicly. The server has no per-user isolation: watchlist, positions, budget, and the background monitor loop are shared across every client that connects. A public HTTP deployment is effectively a shared workspace, not a multi-tenant SaaS. If you enable live trading, a public endpoint can drain your Polymarket wallet from any caller. Always configure the HTTP bearer-token env var (see PERMISSIONS.md) and keep the endpoint behind a firewall, VPN, or auth proxy.

Starting in HTTP mode

bash

# Flag
node dist/index.js --http

# Or set PORT (defaults to 3000)
PORT=8080 node dist/index.js

Endpoints

Path	Method	Description
`/mcp`	POST	MCP protocol endpoint (Streamable HTTP transport)
`/health`	GET	Health check — returns `{ status, version, db }`
`/.well-known/mcp/server-card.json`	GET	MCP discovery card (tools, permissions, data handling)
`/`	GET	Server info with version and endpoint list

Authentication

The HTTP transport accepts an optional bearer token gated by an environment variable — the exact name is documented in PERMISSIONS.md. When set, clients must send Authorization: Bearer <token> on requests to /mcp; when unset the endpoint is open (suitable only for local or private networks).

Docker deployment

A prebuilt multi-arch image is published to GHCR on every release:

bash

docker pull ghcr.io/demwick/polymarket-agent-mcp:1.7.0

Or build it yourself from the included Dockerfile:

bash

docker build -t polymarket-mcp .
docker run -p 3000:3000 -v mcp-data:/app/data \
  -e DAILY_BUDGET=50 \
  polymarket-mcp
# To require bearer-token auth on /mcp, also pass the HTTP bearer env var
# listed in PERMISSIONS.md (e.g. `-e <VAR>=my-secret-key`).

DB_PATH (default /app/data/copytrader.db) controls where SQLite data is persisted — mount a volume to keep it across restarts.

Configuration

All secrets stay in memory for the lifetime of the process — they are never written to the database, logs, or disk, and are only transmitted to their designated Polymarket API endpoint over HTTPS. The complete authoritative env var list, with per-variable sensitivity and scope, lives in PERMISSIONS.md and SECURITY.md.

Variable	Required	Default	Description
`COPY_MODE`	No	`preview`	`preview` (simulated) or `live` (real orders)
`DAILY_BUDGET`	No	`20`	Max daily spend in USDC
`MIN_CONVICTION`	No	`3`	Min trade size to copy ($)
Wallet signing key	Live only	-	Locally signs CLOB order payloads, never persisted (see PERMISSIONS.md for exact env var name)
CLOB API credentials	Live only	-	API key / secret / passphrase — sent only to `clob.polymarket.com` (see PERMISSIONS.md for exact names)

Safety Features

Configurable order size limits
Total exposure caps
Per-market position limits
Minimum liquidity requirements
Maximum spread tolerance
Stop-loss / take-profit automation
Preview mode (default) — no real money

Permissions & Capabilities

This package has a transparent, minimal footprint. Full disclosure: PERMISSIONS.md — machine-readable version in .well-known/mcp/server-card.json.

Category	Scope
Network (outbound)	3 Polymarket HTTPS APIs + 1 inbound-only WSS public price stream (`ws-subscriptions-clob.polymarket.com`)
Filesystem	Single SQLite database file + `.env` read at startup — nothing else
Environment	API credentials (live mode only, in memory only), budget config, mode selection
Processes	None — no child processes, no shell commands, no `eval`/`Function`
Telemetry	None — no analytics, no crash reports, no update checks, no third-party data flow

WebSocket scope: The WSS connection to Polymarket is inbound-only for public price updates. No wallet, credential, or user identity is transmitted — it carries the same public feed available to any browser client.

Secrets scope: Every secret environment variable is held in memory only, never logged, never persisted, and sent to exactly one host (see SECURITY.md).

Development

bash

git clone https://github.com/demwick/polymarket-agent-mcp.git
cd polymarket-agent-mcp
npm install
npm run build
npm test         # 200+ tests

License

MIT - see LICENSE

Install

Configuration

Environment variables

COPY_MODEdefault preview

Execution mode: 'preview' simulates trades in a local SQLite DB (default, safe for inspection); 'live' places real orders on Polymarket and requires all POLY_* credentials.

POLY_PRIVATE_KEYsecret

Polygon wallet private key used to sign CLOB orders. Required only when COPY_MODE=live. Never logged, persisted, or transmitted outside signed order bodies.

POLY_API_KEYsecret

Polymarket CLOB API key. Required only when COPY_MODE=live.

POLY_API_SECRETsecret

Polymarket CLOB API secret. Required only when COPY_MODE=live.

POLY_API_PASSPHRASEsecret

Polymarket CLOB API passphrase. Required only when COPY_MODE=live.

POLY_FUNDER_ADDRESS

Polymarket funder wallet address (proxy wallet) used for live trading.

DAILY_BUDGETdefault 20

Maximum USDC the agent may spend per day. Used by BudgetManager to cap copy-trading exposure.

MIN_CONVICTIONdefault 3

Minimum conviction score (0–100) required before a copy trade is executed.

CHAIN_IDdefault 137

EVM chain ID for Polymarket (137 = Polygon mainnet).

DB_PATH

Optional override for the SQLite database path. Defaults to a package-local file.

Add to VS Code Add to Cursor

claude_desktop_config.json

json

{
  "mcpServers": {
    "polymarket-agent-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "polymarket-agent-mcp@1.7.0"
      ],
      "env": {
        "COPY_MODE": "preview",
        "POLY_PRIVATE_KEY": "<YOUR_POLY_PRIVATE_KEY>",
        "POLY_API_KEY": "<YOUR_POLY_API_KEY>",
        "POLY_API_SECRET": "<YOUR_POLY_API_SECRET>",
        "POLY_API_PASSPHRASE": "<YOUR_POLY_API_PASSPHRASE>",
        "POLY_FUNDER_ADDRESS": "<YOUR_POLY_FUNDER_ADDRESS>",
        "DAILY_BUDGET": "20",
        "MIN_CONVICTION": "3",
        "CHAIN_ID": "137",
        "DB_PATH": "<YOUR_DB_PATH>"
      }
    }
  }
}

Polymarket Agent MCP Server

🛠️ Key Features

🚀 Use Cases

⚡ Developer Benefits

⚠️ Limitations

Topics

Polymarket Agent MCP Server

Tool Overview

Quick Start

npm Install

Docker

Claude Code Config

Usage Examples

All 48 Tools

Discovery

Analysis

Trading

Copy Trading

Portfolio & Risk

Configuration

Architecture

HTTP Transport & Deployment

Deployment model — read this first

Starting in HTTP mode

Endpoints

Authentication

Docker deployment

Configuration

Safety Features

Permissions & Capabilities

Development

License

Install

Configuration

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