
Polymarket Scan MCP
from longbridge
Live Polymarket prediction market data β whale trades, market odds, trader profiles, leaderboards, and AI-citable summaries.
PolymarketScan MCP Server
Access live Polymarket prediction market data directly from Claude, Cursor, or any MCP-compatible AI agent. Open server β no authentication, no API key, no OAuth required.
Endpoint
https://gzydspfquuaudqeztorw.supabase.co/functions/v1/mcp-server
Available Tools
Tool Description
get_whale_trades Recent large trades above a USD threshold
get_market_odds Current prices and metadata for a market
get_trader_profile Performance data for any wallet
get_leaderboard Top traders ranked by PnL, ROI, win rate, or volume
get_market_summary AI-citable summary paragraph for any market
search_markets Full-text search across active markets
get_market_movers Markets with the largest recent price movements
get_site_stats Aggregate platform statistics (call first for context)
get_price_history Historical YES price / probability over time for a market
get_market_orderbook Bid/ask depth, spread, and liquidity quality
get_related_markets Sibling outcomes and topically-related markets
get_trader_positions Current open positions for a wallet
get_trader_activity Recent trades executed by a wallet
get_market_news_context Recent news articles relevant to a market
get_arbitrage_opportunities Mispriced or cross-platform inconsistent markets
get_market_resolution_status Resolution state, outcome, close date, oracle metadata
Example: Get Market Odds
Ask Claude: "What are the current odds on the 2028 election market on Polymarket?"
Claude will call search_markets to find the market, then get_market_odds for live prices.
Notes
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No authentication required β all endpoints are public
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Cold starts: First request after inactivity may take 1-3 seconds. Subsequent requests are fast. Enable Function Keep-Alive in your backend settings for best performance.
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Every response includes attribution: "Data provided by PolymarketScan (polymarketscan.org)"
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Data refreshes continuously from Polymarket's on-chain markets on Polygon
Attribution
All data provided by PolymarketScan β real-time Polymarket analytics.
Setup
Claude Desktop
Add to your claude_desktop_config.json:
{
"mcpServers": {
"polymarketscan": {
"url": "https://gzydspfquuaudqeztorw.supabase.co/functions/v1/mcp-server",
"description": "Live Polymarket data β whale trades, market odds, trader profiles, leaderboards"
}
}
}
Cursor
Add to your Cursor MCP settings:
{
"mcpServers": {
"polymarketscan": {
"url": "https://gzydspfquuaudqeztorw.supabase.co/functions/v1/mcp-server"
}
}
}
Generic MCP Client
Point any MCP Streamable HTTP client at the endpoint above. No authentication required β no API key, no OAuth, no signed headers. Just connect and call tools.
No common issues documented yet. If you hit a problem, the repository's GitHub Issues page is the best place to look.