Polymarket Whale Tracker - Smart Money, Top Traders & Holders

See where the biggest money on Polymarket is going: whale bets as they happen, what the most profitable traders hold, and who is on each side of a market.

Data	Polymarket's official public APIs (trades, positions, holders, leaderboard, markets)
Price	$3 per 1,000 records, no subscription. Apify's free plan credit covers a first test.
Freshness	Live: every run reads the latest trades and positions
Try it	The input is pre-filled with a working example: just click Start.

Example output

Trader	Side	Outcome	Price	Trade $	Market
whale_one	BUY	Yes	0.81	$48,600	Will the Fed cut rates in December?
sharp_two	SELL	Over	0.30	$15,000	Lens vs Sporting: O/U 1.5

Illustrative rows; real runs return the full fields listed under Output.

Prediction-market prices move when big, well-informed traders put money down. This Actor tracks them through Polymarket's own public APIs, with four modes:

Mode	What you get
Whale trades	Every trade above your dollar threshold, newest first, with the trader's name and portfolio value
Top traders	The leaderboard by profit or volume (day, week, month, all time) with each trader's biggest open positions
Who holds a market	For any market or event URL: current prices, the largest holders of each outcome, and the biggest trades
Wallets	Portfolio value and open positions for any wallet you want to follow

What you can do with it

• 🐋 Whale alerts: schedule it every 15 minutes and send $25k+ bets to Slack, Discord or Telegram.
• 🧠 Copy the sharpest traders: see what this week's most profitable accounts are holding right now.
• ⚖️ Read a market: are the big holders on Yes or No?
• 📰 News and research: spot where money flows on elections, the Fed, crypto and sports before the price settles.

How to use it

Whale bets over $25,000 in the last 6 hours

{ "mode": "whales", "minUsd": 25000, "lookbackHours": 6 }

Whale bets on Fed markets only

{ "mode": "whales", "minUsd": 5000, "marketKeyword": "Fed" }

This week's 20 most profitable traders and their top 5 positions

{ "mode": "top-traders", "timePeriod": "WEEK", "orderBy": "PNL", "maxResults": 20 }

Who holds this market

{ "mode": "market", "markets": ["https://polymarket.com/event/your-event-slug"] }

Output

Whale trade:

{
  "type": "whale-trade",
  "timestamp": "2026-10-13T16:43:58.000Z",
  "wallet": "0x5fdd...a747",
  "trader": "juice-fruit",
  "side": "BUY",
  "outcome": "Over",
  "price": 0.83,
  "shares": 15076.62,
  "usdValue": 12513.59,
  "market": "Racing Club de Lens vs. Sporting CP: O/U 1.5",
  "marketUrl": "https://polymarket.com/event/ucl-rcl-spo-2026-10-13-more-markets",
  "traderUrl": "https://polymarket.com/profile/0x5fdd...a747",
  "traderPortfolioValue": 48210.5
}

Top trader rows add rank, pnlUsd, volumeUsd and topPositions (market, outcome, shares, average and current price, value, profit). Market rows list each outcome with its price and topHolders, plus largeTrades.

Use it from code or an AI agent

Python

from apify_client import ApifyClient

client = ApifyClient("<YOUR_APIFY_TOKEN>")
run = client.actor("smartmoney-data/polymarket-smart-money").call(run_input={"mode": "whales", "minUsd": 25000})
for item in client.dataset(run["defaultDatasetId"]).iterate_items():
    print(item)

AI agents (Claude, ChatGPT, Cursor and other MCP clients): connect the Apify MCP server with this Actor preloaded:

https://mcp.apify.com/?tools=smartmoney-data/polymarket-smart-money

Add this URL as a remote MCP server or custom connector in your AI client, sign in with Apify (OAuth), then just ask, for example:

What are the biggest Polymarket bets in the last 6 hours, and what do this week's top traders hold?

Part of the SmartMoney Data suite: Congress Stock Trades · Insider Trades · Smart Money Alerts · Washington Money

Pricing

Pay per result: you're charged for each record returned. See the Pricing tab for current rates.

FAQ

Do I need a Polymarket account or API key? No. Everything comes from Polymarket's public read-only APIs.

Are trader names real identities? No. They are the usernames or pseudonyms traders chose on Polymarket, plus their public wallet address.

Is this legal to use? Yes. The data is public and read from Polymarket's documented public endpoints. This Actor does not place trades.

Support

Found a bug or need a feature? Open an issue on the Issues tab or email smartmoney-data@googlegroups.com.

Data is provided for informational purposes only and is not financial advice. Prediction markets may be restricted in your country.