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Polygon PoS ERC-20 Large-Trade & Whale Tracker
x402
Polygon PoS ERC-20 Large-Trade & Whale Tracker is a paid API for AI agents from onchaincheck.dev, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-30).
Returns buy/sell trades, volume summary, net flow, and top whale wallets for an ERC-20 token on Polygon PoS over the last N minutes, sourced from Uniswap v3 WPOL/USDC pools.
Price / call$0.02
Success—
StatusUnknown
How this service works
Whale and large-trade tracker for an ERC-20 on Polygon PoS: every buy and sell in the last N minutes on the token's deepest WPOL/USDC pools (Uniswap v3), with USD size, side, wallet and transaction for the largest trades, buy/sell volume and net flow, and the wallets that bought or sold the most.
Output
A JSON object containing: chain and token metadata (symbol, address, decimals); the scanned block window with timestamps; a summary of total buys, sells, buy volume USD, sell volume USD, net flow USD, and largest trade USD; a list of top buyer wallets with per-wallet bought/sold/net USD and trade count; a list of top seller wallets with the same fields; a list of large individual trades with wallet, side, USD size, and transaction hash; and an array of the Uniswap v3 pools scanned.
Example use cases
Spot whale accumulation before a move
“Check if any big wallets have been aggressively buying the MATIC-adjacent token at 0x53E0bca35eC356BD5ddDFebbD1Fc0fD03FaBad39 on Polygon in the last 2 hours — I want to see the top buyers and total buy volume.”
Monitor sell pressure on a held position
“Is there heavy selling going on for the token at 0x2791Bca1f2de4661ED88A30C99A7a9449Aa84174 on Polygon right now? Show me the last 30 minutes of sells larger than $1000 and who is selling the most.”
Alert on unusual net flow for a DeFi token
“What's the net buy or sell flow for the token at 0x7ceB23fD6bC0adD59E62ac25578270cFf1b9f619 on Polygon over the past 45 minutes? I want to know if more money is flowing in or out and how large the biggest single trade was.”
Technical details
Endpoint
GEThttps://onchaincheck.dev/polygon/trades?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need real-time DEX trade surveillance for a specific ERC-20 on Polygon PoS, including whale wallet identification and net flow metrics from Uniswap v3 pools. Prefer this over generic block explorers when you want pre-aggregated buy/sell volume, top-wallet rankings, and USD-denominated sizing in a single call. Choose this over the Base or Arbitrum sibling endpoints specifically for Polygon PoS tokens.
Side effects
- Invalid token address format returns a validation error
- Token with no liquidity in WPOL/USDC Uniswap v3 pools returns empty trade lists
- minutes parameter outside 5–240 range may be capped or rejected
- Network congestion may cause stale block data
- Token address that exists on another chain (not Polygon PoS) returns no results
- minUsd filter too high may return zero listed trades even if trading occurred
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"chain": "polygon",
"notes": "Trades from the 3 deepest WPOL/USDC pools; other pairs and aggregator-internal routes are not counted. Wallets are transaction senders, looked up for the 40 largest trades.",
"token": {
"symbol": "LINK",
"address": "0x53E0bca35eC356BD5ddDFebbD1Fc0fD03FaBad39",
"decimals": 18
},
"window": {
"to": "2026-10-22T16:23:24.000Z",
"from": "2026-10-22T15:23:24.000Z",
"minutes": 60,
"toBlock": 95987222,
"fromBlock": 95985422
},
"summary": {
"buys": 20,
"sells": 15,
"trades": 35,
"netFlowUsd": 145.557,
"buyVolumeUsd": 455.848,
"sellVolumeUsd": 310.29,
"largestTradeUsd": 79.4717
},
"nativeUsd": 0.0907291,
"topBuyers": [
{
"netUsd": 90.23,
"trades": 4,
"wallet": "0x3f6720364ACF02366a63e5F7106D314D31f688d1",
"soldUsd": 11.93,
"boughtUsd": 102.2
},
{
"netUsd": 71.03,
"trades": 2,
"wallet": "0x03E7c97adA2FA30752999A859d2d2e9f1881b4C8",
"soldUsd": 0,
"boughtUsd": 71.03
},
{
"netUsd": 59.98,
"trades": 1,
"wallet": "0x73bE04ABAa96c7D92Db28cD3AEF1539A77775d5b",
"soldUsd": 0,
"boughtUsd": 59.98
},
{
"netUsd": 39.05,
"trades": 1,
"wallet": "0xEe8411A0AC858a8e2E2Cae069D5d45fa5978bD6d",
"soldUsd": 0,
"boughtUsd": 39.05
},
{
"netUsd": 9.84,
"trades": 1,
"wallet": "0x9242966990B0B28CaF896e9fbdF048044BC7555e",
"soldUsd": 0,
"boughtUsd": 9.84
}
],
"topSellers": [
{
"netUsd": -70.5,
"trades": 3,
"wallet": "0xd2b648d4ceD31FB4EF142962C1d2Ea7428977F06",
"soldUsd": 70.5,
"boughtUsd": 0
},
{
"netUsd": -37.87,
"trades": 1,
"wallet": "0xB9A7f2B5A0290D01188b77F35cEEf046d332a60C",
"soldUsd": 37.87,
"boughtUsd": 0
},
{
"netUsd": -29.14,
"trades": 1,
"wallet": "0x96d0e9A19627903E24962c2fB8a43C728281CB4f",
"soldUsd": 29.14,
"boughtUsd": 0
},
{
"netUsd": -0.412,
"trades": 1,
"wallet": "0x03d9964f4D93a24B58c0Fc3a8Df3474b59Ba8557",
"soldUsd": 0.412,
"boughtUsd": 0
}
],
"largeTrades": [],
"poolsScanned": [
{
"dex": "uniswap-v3",
"pool": "0x79E4240E33C121402dfc9009dE266356c91f241d",
"pairedWith": "USDC"
},
{
"dex": "uniswap-v3",
"pool": "0x0A28C2F5E0E8463E047C203F00F649812aE67E4f",
"pairedWith": "WPOL"
},
{
"dex": "uniswap-v3",
"pool": "0x98b9162161164De1ED182A0dFA08f5fBf0F733CA",
"pairedWith": "WPOL"
}
]
}
}Tags
x402
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