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Ethereum Onchain Large-Trade & Whale Tracker
x402
Ethereum Onchain Large-Trade & Whale Tracker is a paid API for AI agents from ca-tax-api-mainnet.lxtap.workers.dev, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-23).
Fetches recent large buys and sells of an ERC-20 token on Ethereum's deepest Uniswap v3 WETH/USDC pools, with USD size, trade side, wallet addresses, net flow, and top whale wallets.
Price / call$0.02
Success—
StatusUnknown
How this service works
Pay-per-call data for AI agents, paid in USDC on Base with x402: token risk checks (rug check) on Base, Ethereum, Arbitrum, Optimism, Polygon and Solana, onchain reads (balances, transactions, gas, contracts, NFTs, whale trades, new pools, ENS and Basenames), ECB exchange rates, and Canadian sales tax and business days.
Output
Returns a list of recent large trades on the token's deepest Uniswap v3 WETH/USDC pools on Ethereum, each with USD size, buy/sell side, wallet address, and transaction hash; aggregates including total buy volume, total sell volume, and net flow; and rankings of the wallets that bought or sold the most in the look-back window.
Example use cases
Spot whale accumulation before a pump
“Pull up every buy over $20,000 for the token at 0x6982508145454Ce325dDbE47a25d4ec3d2311933 on Ethereum in the last 60 minutes — I want to see which wallets are loading up and what the net flow looks like.”
Monitor dump risk on a held position
“Check if there have been any large sells above $10,000 on 0x514910771AF9Ca656af840dff83E8264EcF986CA on Ethereum in the last 2 hours — show me the top seller wallets and total sell volume so I can gauge dump risk.”
Confirm buy-side momentum before entry
“Before I buy into this token at 0x1f9840a85d5aF5bf1D1762F925BDADdC4201F984 on Ethereum, can you show me the buy vs sell volume and net flow over the last 30 minutes, listing trades over $2,000?”
Technical details
Endpoint
GEThttps://ca-tax-api-mainnet.lxtap.workers.dev/eth/trades?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need real-time whale and large-trade surveillance specifically for an ERC-20 token on Ethereum mainnet using Uniswap v3 WETH/USDC liquidity pools. It is ideal for DeFi traders, on-chain analysts, or alert systems that need to identify accumulation or distribution by large wallets, assess buy/sell pressure, and surface the specific transactions and wallets driving price action — all without running your own blockchain indexer.
Side effects
- Invalid or non-existent token contract address returns an error or empty result
- Token has no Uniswap v3 WETH/USDC pool, returning no trades
- minutes parameter outside 5–240 range may be capped or rejected
- minUsd filter too high returns an empty trade list
- limit parameter outside 1–40 range rejected by validation
- Network congestion or RPC errors may cause delayed or failed responses
- Payment failure (x402) if USDC balance is insufficient
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"chain": "eth",
"notes": "Trades from the 3 deepest WETH/USDC pools; other pairs and aggregator-internal routes are not counted. Wallets are transaction senders, looked up for the 40 largest trades.",
"token": {
"symbol": "UNI",
"address": "0x1f9840a85d5aF5bf1D1762F925BDADdC4201F984",
"decimals": 18
},
"window": {
"to": "2026-10-22T16:22:59.000Z",
"from": "2026-10-22T15:22:59.000Z",
"minutes": 60,
"toBlock": 26249326,
"fromBlock": 26249026
},
"summary": {
"buys": 7,
"sells": 22,
"trades": 29,
"netFlowUsd": -62919.8,
"buyVolumeUsd": 775.696,
"sellVolumeUsd": 63695.5,
"largestTradeUsd": 12127.7
},
"nativeUsd": 2399.99,
"topBuyers": [
{
"netUsd": 333.4,
"trades": 1,
"wallet": "0xFE272453cdBE33969155E54F5EAa9267bEEaa496",
"soldUsd": 0,
"boughtUsd": 333.4
},
{
"netUsd": 192.4,
"trades": 1,
"wallet": "0xF2448FF6E5E68a8Ef70B62d9f7dfE3C43253A1F5",
"soldUsd": 0,
"boughtUsd": 192.4
},
{
"netUsd": 98,
"trades": 1,
"wallet": "0x124Ae9d407c6644688F6A667D6a205f26AC36b30",
"soldUsd": 0,
"boughtUsd": 98
},
{
"netUsd": 88.86,
"trades": 1,
"wallet": "0x5f73CfaCb6e225266946feE476A8b20902154565",
"soldUsd": 0,
"boughtUsd": 88.86
},
{
"netUsd": 41.09,
"trades": 1,
"wallet": "0x544B0538C070C9B0872A1C34e124F088a3865aF3",
"soldUsd": 0,
"boughtUsd": 41.09
}
],
"topSellers": [
{
"netUsd": -14380,
"trades": 5,
"wallet": "0x5B43453FCE04b92E190f391a83136bfBeCEDEFd1",
"soldUsd": 14380,
"boughtUsd": 0
},
{
"netUsd": -12130,
"trades": 1,
"wallet": "0xd5a809D6dbEe62A34Cf4106080C6e04B8d9ce285",
"soldUsd": 12130,
"boughtUsd": 0
},
{
"netUsd": -8849,
"trades": 1,
"wallet": "0x8357eFA84F91013Bd6b285eF0f6b93C211cC3d9d",
"soldUsd": 8849,
"boughtUsd": 0
},
{
"netUsd": -7432,
"trades": 1,
"wallet": "0x05a94A8Dd7eb1ba5b1114CC5eF18855A221Ac317",
"soldUsd": 7432,
"boughtUsd": 0
},
{
"netUsd": -5504,
"trades": 1,
"wallet": "0x8bBe5D78bE45931Cf4815D8A00bf38c3DDD36782",
"soldUsd": 5504,
"boughtUsd": 0
}
],
"largeTrades": [
{
"tx": "0x254948fa1fc779edf4268e84b804fffefe7dd32db455779c54ad78f349b7b0cd",
"dex": "uniswap-v3",
"usd": 12127.7,
"side": "sell",
"block": 26249063,
"wallet": "0xd5a809D6dbEe62A34Cf4106080C6e04B8d9ce285",
"approxTime": "2026-10-22T15:30:23.000Z",
"quoteAmount": 5.0532446,
"quoteSymbol": "WETH",
"tokenAmount": 1716.8438
},
{
"tx": "0xdb57be14caada6f93d3342bdaf96bf15eb30f17bdadfe2aa5f2caf356f61d3fa",
"dex": "uniswap-v3",
"usd": 8849.27,
"side": "sell",
"block": 26249269,
"wallet": "0x8357eFA84F91013Bd6b285eF0f6b93C211cC3d9d",
"approxTime": "2026-10-22T16:11:35.000Z",
"quoteAmount": 3.6872074,
"quoteSymbol": "WETH",
"tokenAmount": 1255.6263
},
{
"tx": "0x8cc47225f61cc51a395adefc1ab74ff5a304f2d65a9cbed34524aba228010564",
"dex": "uniswap-v3",
"usd": 7431.89,
"side": "sell",
"block": 26249322,
"wallet": "0x05a94A8Dd7eb1ba5b1114CC5eF18855A221Ac317",
"approxTime": "2026-10-22T16:22:11.000Z",
"quoteAmount": 3.0966311,
"quoteSymbol": "WETH",
"tokenAmount": 1056.3754
},
{
"tx": "0xf087fc7262fd6a0902d311486ebd012b8bbf40711da818d3cf9f83e37f2a8aca",
"dex": "uniswap-v3",
"usd": 6281.59,
"side": "sell",
"block": 26249066,
"wallet": "0x5B43453FCE04b92E190f391a83136bfBeCEDEFd1",
"approxTime": "2026-10-22T15:30:59.000Z",
"quoteAmount": 2.6173378,
"quoteSymbol": "WETH",
"tokenAmount": 889.86901
},
{
"tx": "0x41df3a253d1d138fac757efa1cabb7ae3f16f2ff715273513436258f438b98ee",
"dex": "uniswap-v3",
"usd": 5503.92,
"side": "sell",
"block": 26249291,
"wallet": "0x8bBe5D78bE45931Cf4815D8A00bf38c3DDD36782",
"approxTime": "2026-10-22T16:15:59.000Z",
"quoteAmount": 2.2933067,
"quoteSymbol": "WETH",
"tokenAmount": 781.38876
}
],
"poolsScanned": [
{
"dex": "uniswap-v3",
"pool": "0x1d42064Fc4Beb5F8aAF85F4617AE8b3b5B8Bd801",
"pairedWith": "WETH"
},
{
"dex": "uniswap-v3",
"pool": "0xfaA318479b7755b2dBfDD34dC306cb28B420Ad12",
"pairedWith": "WETH"
},
{
"dex": "uniswap-v3",
"pool": "0x360b9726186C0F62cc719450685ce70280774Dc8",
"pairedWith": "WETH"
}
]
}
}Tags
x402
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