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Ethereum Whale Transaction Monitor
x402
Ethereum Whale Transaction Monitor is a paid API for AI agents from api.fadeandco.workers.dev, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-30).
Returns large ETH, USDT, and USDC transfers (above a USD threshold) from the most recent 1–10 Ethereum blocks, with sender, recipient, amount, and USD value.
Price / call$0.003
Success—
StatusUnknown
How this service works
Large transfers on Ethereum in the latest 1 to 10 blocks (default 5, about one minute of chain time): native ETH transfers valued at the current ETH price, and USDT and USDC token transfers, each at least a USD threshold (default $100,000), with asset, amount, USD value, hash, block, sender and recipient. Ethereum only; other tokens are not included; a snapshot, not a live stream.
Output
A JSON object containing a list of large transfers (each with asset, amount, USD value, transaction hash, block number, sender, recipient, and timestamp), total transfer count, block range scanned, ETH price used for valuation, and scan metadata including number of transactions and token transfer events examined.
Example use cases
Spot large stablecoin outflows
“Scan the last 10 Ethereum blocks and show me any USDT or USDC transfers above $500,000 — I want to know who sent what and where it went.”
Real-time ETH whale activity alert
“Are there any massive ETH transfers happening right now? Check the last 3 Ethereum blocks for native ETH moves above $250,000 and give me the transaction hashes and wallet addresses.”
Broad whale activity snapshot
“Give me a snapshot of all big on-chain moves across ETH, USDT, and USDC in the last 5 Ethereum blocks with a $100,000 minimum — I want counts, amounts, and block numbers.”
Technical details
Endpoint
GEThttps://api.fadeandco.workers.dev/api/agent-intel/whale-transaction-monitor?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a quick, structured snapshot of large Ethereum on-chain transfers (ETH, USDT, USDC) across recent blocks without setting up your own node or indexer. It is ideal for ad-hoc whale detection, short-term market surveillance, and on-chain flow analysis where near-real-time latency (1–2 minutes) is acceptable. It is not suited for continuous live streaming, historical analysis beyond 10 blocks, or tokens other than ETH, USDT, and USDC.
Side effects
- Invalid blocks parameter (outside 1–10 range) returns an error
- Invalid minUsd parameter (outside 1,000–100,000,000 range) returns an error
- Invalid asset name in assets list returns an error or empty results
- Public Ethereum RPC node may be temporarily unavailable, causing a 500 or timeout
- No transfers meeting the threshold in the scanned blocks returns an empty transfers array
- Network congestion or very recent blocks may yield incomplete data
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"note": "Native ETH: every transaction of the scanned blocks. Tokens: USDT and USDC Transfer events only (USD value = token amount).",
"count": 41,
"assets": [
"eth",
"usdt"
],
"blocks": {
"to": 26254463,
"from": 26254459
},
"minUsd": 50000,
"source": "https://ethereum-rpc.publicnode.com",
"scanned": {
"transactions": 1247,
"tokenTransfers": 903
},
"checkedAt": "2026-10-23T09:35:19.401Z",
"transfers": [
{
"to": "0xe2e7a17dff93280dec073c995595155283e3c372",
"from": "0x1601843c5e9bc251a3272907010afa41fa18347e",
"hash": "0x0b65413b580443ed01f0021da71b06b9e11dd259f5432f1523f53b75e84d02db",
"asset": "USDT",
"block": 26254462,
"amount": 1388040.137367,
"valueUsd": 1388040,
"timestamp": "2026-10-23T09:34:59.000Z"
},
{
"to": "0x2df9b935c44057ac240634c7536511d8aa03028d",
"from": "0x2744dfd9898f0babbc570cc594bbbc84b487a22b",
"hash": "0xb174b05c4f7f6b1de4e59b99b4494631fd4a290486dfc5327c5aeae35ff42c0c",
"asset": "USDC",
"block": 26254459,
"amount": 1200000,
"valueUsd": 1200000,
"timestamp": "2026-10-23T09:34:23.000Z"
}
],
"ethPriceUsd": 2392.83
}
}Tags
x402
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