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infinitERB Poly Whales
x402
infinitERB Poly Whales is a paid API for AI agents from api.infiniterb.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-01).
Returns recent large trades (whale activity) for a given prediction market, filtered by minimum USD trade size.
Price / call$0.01
Success—
StatusUnknown
How this service works
infinitERB: poetry, philosophy, and objects from the middle — where knowing meets unknowing, and love brings the color.
Output
A JSON object containing a count of qualifying trades and an array of trade records, each with the side (BUY or SELL), the wallet address that made the trade, and the trade size in USD.
Example use cases
Monitor whale sentiment before election
“Pull the large trades on the 2024 US election outcome market — anything above $5000 — so I can see which way the whales are positioned.”
Spot big money entering a market
“Show me whale activity for Polymarket market ID 'eth-merge-2024', minimum trade size $1000, so I can see if any big wallets just moved in.”
Identify dominant whale wallets
“Get me all trades over $3000 on prediction market 'fed-rate-cut-sept' so I can figure out which wallet addresses are controlling the largest positions.”
Technical details
Endpoint
GEThttps://api.infiniterb.com/api/poly/whales?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need on-chain large-trade (whale) activity data for a specific Polymarket prediction market, filtered by a minimum USD threshold. It is ideal for agents monitoring market sentiment, detecting institutional or high-conviction moves, or tracking wallet behavior in decentralized prediction markets.
Side effects
- Missing required market_id parameter returns a 400 or validation error
- Invalid or non-existent market_id may return an empty trades array or 404
- Payment failure (x402) if USDC is not provided correctly results in 402 response
- min_usd set too high may return zero trades with an empty array
- Network or upstream data source unavailability may return 5xx error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"count": 3,
"trades": [
{
"side": "BUY",
"wallet": "0x..",
"size_usd": 5000
}
]
}
}Tags
x402
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