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SYNTHORA Polymarket Whales Tracker
x402
SYNTHORA Polymarket Whales Tracker is a paid API for AI agents from polymarket-whales.hergertsynthora.com, paid per call via x402, $0.15/call, status unknown (last checked 2026-09-15).
Returns live large-trade (whale) activity on Polymarket prediction markets, filterable by minimum USD size, side, and count limit.
Price / call$0.15
Success—
StatusUnknown
How this service works
Live whale-tracking on Polymarket: the latest large trades (default >= 5000 USD, tunable via min_usd) with wallet, side, outcome, size, price, USD value, market title/slug and tx hash, straight from Polymarket public trades data API.
Output
A JSON object containing a list of whale trades each with transaction hash, wallet address, buy/sell side, outcome name, share size, price, USD value, market title and slug, and UTC timestamp — plus aggregate stats: total trade count, total USD volume, number of unique wallets involved, and a ranked list of top markets by whale USD.
Example use cases
Monitor whale buying sentiment
“Pull the latest 25 Polymarket whale trades on the buy side with a minimum size of $5,000 — I want to see which outcomes the big money is backing right now.”
Spot large sell-offs before news
“Show me up to 50 Polymarket trades from any side that are at least $15,000 each, so I can see if any whales are dumping positions before a big event.”
Identify hottest whale markets
“Get me the top 25 whale trades on Polymarket — no minimum filter, just show me which markets have the most large-wallet activity and what wallets are behind them.”
Technical details
Endpoint
POSThttps://polymarket-whales.hergertsynthora.com/serviceWhen to prefer
Choose this endpoint when you need real-time, filtered visibility into large on-chain trades specifically on the Polymarket prediction market platform — especially when you want wallet-level attribution, market context, and USD-denominated sizing in a single call. Prefer it over generic blockchain explorers when you need pre-parsed, human-readable Polymarket trade data without building your own indexing logic.
Side effects
- Invalid 'side' value (not 'buy', 'sell', or 'all') returns a validation error
- limit out of range (below 1 or above 100) returns a bad request error
- Polymarket upstream API unavailable causes 5xx or empty result
- min_usd set extremely high may return zero whale trades (count: 0)
- Network timeout if Polymarket data API is slow to respond
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| side | string | buy | sell | all (default all) |
| limit | integer | Max trades to return (1-100, default 25) |
| min_usd | number | Minimum trade size in USD (default 5000) |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"niche": "polymarket_whales",
"result": {
"count": 20,
"min_usd": 10000,
"total_usd": 250000,
"whale_trades": [
{
"tx": "0x...",
"side": "BUY",
"size": 10000,
"price": 0.62,
"market": "...",
"wallet": "0x...",
"outcome": "Yes",
"usd_value": 6200,
"market_slug": "...",
"timestamp_utc": "..."
}
],
"unique_wallets": 14,
"top_markets_by_whale_usd": []
}
}
}Tags
x402
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