F
licenseNot graded
qualityD
maintenanceMCP server that exposes Polymarket prediction markets via CLI wrapper. Enables AI agents to discover markets, check prices, and place trades programmatically.
-
Polymarket MCP Server
Click on "Deploy Server".
Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state.
In the chat, type
@followed by the MCP server name and your instructions, e.g., "@Polymarket MCP Server search for election markets"
That's it! The server will respond to your query, and you can continue using it as needed.
Here is a step-by-step guide with screenshots.
Polymarket MCP Server
MCP server for Polymarket prediction markets — powered by the official polymarket-us TypeScript SDK.
Features
6 MCP tools for reading market data, searching, and analyzing bets
Public data — no API key needed for reading markets
Trading ready — supports authenticated endpoints with API key
Dual mode — runs as stdio MCP (DuckHive/OpenClaw) or HTTP server
Related MCP server: Polymarket MCP Server
Installation
cd polymarket-mcp
npm installDuckHive / OpenClaw Setup
Add to ~/.duckhive.json:
{
"mcpServers": {
"polymarket": {
"command": "node",
"args": ["/path/to/polymarket-mcp.mjs"]
}
}
}For trading (optional), add your API key:
{
"mcpServers": {
"polymarket": {
"command": "node",
"args": ["/path/to/polymarket-mcp.mjs"],
"env": {
"POLYMARKET_KEY_ID": "your_key_id",
"POLYMARKET_SECRET_KEY": "your_secret_key"
}
}
}
}Get your API key at: https://app.polymarket.com/api-keys
Tools
Tool | Description |
| Search markets by keyword |
| Full market details by slug |
| Trending events by volume |
| Current odds + best bid/ask |
| Odds, profit calc, vig, value rating |
| Browse events by category |
HTTP Mode (testing)
node polymarket-mcp.mjs --http
curl http://localhost:3457/healthKnown 2026 Midterm Slugs
Market | Slug |
Senate GOP win |
|
Senate Democrat win |
|
House Democrat win |
|
House GOP win |
|
Docs
Available Tools
6 toolsget_polymarket_bet_analysisA
Full bet analysis: current odds, implied probability, potential profit on a $100 bet, vig estimate, and value assessment.
Inputs: slug (required), betSize.
get_polymarket_eventsA
List Polymarket events (groupings of related markets). Good for browsing by category like politics, sports, crypto.
Inputs: category, limit.
get_polymarket_marketA
Get full details for a specific Polymarket market by slug. Includes current odds, outcomes, volume, liquidity, and order book.
Inputs: slug (required), includeBook.
get_polymarket_priceA
Get current odds for a specific market by slug. Shows all outcomes with implied probability.
Inputs: slug (required).
get_polymarket_trendingA
Get trending Polymarket events ordered by volume. Good for discovering popular markets.
Inputs: limit.
search_polymarketA
Search Polymarket markets by keyword. Returns matching events with their markets, odds, and volume. Use this to find slugs for other tools.
Inputs: query (required), limit.
Tool Schema Changelog
Recent tool additions, removals, and schema changes observed during successful MCP inspections.
Loading tool schema changelog…
TDQS
A4.1/5.0
Scored across 6 tools
Disambiguation5/5
Each tool has a clearly distinct function: analysis, event listing, market details, price, trending, and search. No overlapping purposes.
Naming Consistency5/5
All tools use a consistent 'get_' or 'search_' prefix followed by the domain name 'polymarket' with underscore-separated words, making them predictable.
Tool Count5/5
Six tools is optimal for a prediction market server, covering browsing and analysis without being too sparse or overly numerous.
Completeness4/5
The tools cover key operations: listing, searching, getting details, pricing, trending, and analysis. However, actions like placing bets or managing accounts are absent, which might limit full workflow integration.
Maintenance
ActivityInactive
ResponsivenessNo recent community issues
Related MCP Connectors
Read-only MCP server for live Polymarket, Kalshi, Limitless odds; Manifold sentiment.
Your agent needs the crowd's number — live odds on elections, policy, macro prints and sport, from the venues where people put money behind the opinion. **What you can ask for** • "What are the current odds on this event?" • "List the open markets on this topic across both venues." • "Show recent trades and how the price moved." • "What is the implied probability now versus a week ago?" **How to use it** Point any MCP client at https://mcp.aisa.one/prediction-market-data/mcp and sign in with OAuth — there is no key to create or paste. 5 tools: Kalshi markets and trades, Polymarket markets, events and activity. **Why this rather than the source** Both venues in one shape, so the same question can be priced twice. **It is also a door to the rest** The same login reaches 26 sources and 580+ operations. Read the odds here, then ask the same agent for the market data or the news behind them — without adding a second server. **What it costs** Finding and inspecting an operation is free. Running one is billed per call at API prices, with no seat and no monthly minimum, and every call takes max_price_usd so an agent cannot overspend by accident. **Where else it reaches** https://mcp.aisa.one/finance/mcp for equities, crypto and prediction markets in one place.
Historical tick, order book and settlement data for Polymarket and Predict.fun crypto up/down markets, plus smart-money lists and backtest quotes, over a read-only MCP server.
Polymarket & Kalshi live prediction market odds aggregator and cross-venue arbitrage scanner MCP.
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