PolymarketScan
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Independent Polymarket analytics - verifiable trader receipts, whale feeds, free Agent API and MCP. No trade advice.
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PolymarketScan API — Free Polymarket Data
Free REST API for Polymarket on-chain data. Access wallet profiles, PnL, trade history, market data, leaderboards, whale trades, and alerts. 30 req/min. Used by 160+ developers with 526,111+ requests served.
https://gzydspfquuaudqeztorw.supabase.co/functions/v1/public-api
Pass your API key via x-api-key header or api_key query parameter.
Get trading stats for a wallet: PnL, volume, win rate, best trade.
GET ?endpoint=wallet_profile&address=0x1234...abcd&api_key=YOUR_KEY
Get paginated trade history for a specific wallet. Supports limit (max 500) and offset.
GET ?endpoint=wallet_trades&address=0x1234...abcd&limit=50&api_key=YOUR_KEY
Get PnL summary and daily timeseries for a wallet.
GET ?endpoint=wallet_pnl&address=0x1234...abcd&api_key=YOUR_KEY
Get active Polymarket markets sorted by 24h volume. Supports pagination and category filter.
GET ?endpoint=markets&limit=10&category=crypto&api_key=YOUR_KEY
Get detailed data for a specific market by slug or market_id.
GET ?endpoint=market_data&slug=will-bitcoin-hit-100k&api_key=YOUR_KEY
Get top Polymarket traders ranked by total PnL. Supports limit (max 100).
GET ?endpoint=leaderboard&limit=25&api_key=YOUR_KEY
Recent large trades over $1,000 across all Polymarket markets.
GET ?endpoint=whale_trades&limit=10&api_key=YOUR_KEY
Whale trades for a specific market with aggregate stats: volume, buy/sell split, unique wallets.
GET ?endpoint=market_whales&market_slug=will-bitcoin-hit-100k&min_size=5000&limit=20&api_key=YOUR_KEY
Fetch all USDC deposit and withdrawal transactions for a Polymarket wallet on Polygon.
GET ?endpoint=deposits&address=0x1234...abcd&api_key=YOUR_KEY
GET ?endpoint=withdrawals&address=0x1234...abcd&api_key=YOUR_KEY
Create price, liquidity, time, and whale alerts. Requires an API key with a linked wallet address.
Alert when a market outcome price crosses a threshold (above or below).
POST ?endpoint=alerts_create_price&token_id=123&outcome=Yes&above_threshold=0.8&api_key=YOUR_KEY
Alert based on fill simulation — triggers when a trade of given size can fill at target price.
POST ?endpoint=alerts_create_liquidity&token_id=123&outcome=Yes&side=BUY&size_shares=500&api_key=YOUR_KEY
POST ?endpoint=alerts_create_time&market_end_date=2026-04-01T00:00:00Z&alert_before_minutes=30&api_key=YOUR_KEY
Alert when any wallet (or a specific wallet) makes a trade above a USD threshold.
POST ?endpoint=whale_alerts_create_trade&min_size_usd=10000&target_wallet=0x1234...abcd&api_key=YOUR_KEY
Alert on large USDC deposits or withdrawals for a tracked wallet.
POST ?endpoint=whale_alerts_create_deposit&target_wallet=0x1234...abcd&min_amount_usd=50000&api_key=YOUR_KEY
All responses return JSON with ok, data, and response_time_ms fields. Errors return an error string and rate limit info. Example success response:
{"ok":true,"data":{...},"response_time_ms":142}
PolymarketScan also provides an MCP (Model Context Protocol) server for AI agent integration, allowing AI agents to directly query Polymarket data via structured tool calls.
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