15trust / 100

Agent Intel Whale Transaction Monitor

by SiteCheck Agent Intel & Dev in Onchain & crypto

x402 APIFailing, checked 4 h ago

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.

GET
https://api.fadeandco.workers.dev/api/agent-intel/whale-transaction-monitor
Price
$0.003
per call in USDC
Uptime
0.0%
last 30 days
Response time
-
no timed checks yet
Last check
Failed
4 h ago, next any minute now

Run a free test callHow to call it

Reliability

All checks passedSome failedAll failedNot checked

Latest check failed 4 h ago: Amount "0.003" is not in atomic token units

Status and outage history · Atom feed · Watch with other listings

How to call it

GET https://api.fadeandco.workers.dev/api/agent-intel/whale-transaction-monitor

Each call costs $0.003 in USDC on Optimism, paid with the request over x402.

Run a free test callOne unpaid request, the way an agent sends it. You see the payment challenge it gets back. Nothing is charged.

Example request

From the listing.

GET https://api.fadeandco.workers.dev/api/agent-intel/whale-transaction-monitor?blocks=5&minUsd=50000

Parameters

ParameterTypeRequiredDescription
assetsstringNoComma list of eth, usdt, usdc (default all three)
blocksstringNoLatest blocks to scan, 1 to 10 (default 5)
minUsdstringNoMinimum USD value, 1000 to 100000000 (default 100000)

Example response

The provider's example. We can't check it without paying.

Example response, 42 lines
{
  "assets": [
    "eth",
    "usdt"
  ],
  "blocks": {
    "from": 26254459,
    "to": 26254463
  },
  "checkedAt": "2026-10-23T09:35:19.401Z",
  "count": 41,
  "ethPriceUsd": 2392.83,
  "minUsd": 50000,
  "note": "Native ETH: every transaction of the scanned blocks. Tokens: USDT and USDC Transfer events only (USD value = token amount).",
  "scanned": {
    "tokenTransfers": 903,
    "transactions": 1247
  },
  "source": "https://ethereum-rpc.publicnode.com",
  "transfers": [
    {
      "amount": 1388040.137367,
      "asset": "USDT",
      "block": 26254462,
      "from": "0x1601843c5e9bc251a3272907010afa41fa18347e",
      "hash": "0x0b65413b580443ed01f0021da71b06b9e11dd259f5432f1523f53b75e84d02db",
      "timestamp": "2026-10-23T09:34:59.000Z",
      "to": "0xe2e7a17dff93280dec073c995595155283e3c372",
      "valueUsd": 1388040
    },
    {
      "amount": 1200000,
      "asset": "USDC",
      "block": 26254459,
      "from": "0x2744dfd9898f0babbc570cc594bbbc84b487a22b",
      "hash": "0xb174b05c4f7f6b1de4e59b99b4494631fd4a290486dfc5327c5aeae35ff42c0c",
      "timestamp": "2026-10-23T09:34:23.000Z",
      "to": "0x2df9b935c44057ac240634c7536511d8aa03028d",
      "valueUsd": 1200000
    }
  ]
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.003.

The code pays $0.003 in USDC on Base instead: the x402 libraries don't pay USDC by default.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://api.fadeandco.workers.dev/api/agent-intel/whale-transaction-monitor?blocks=5&minUsd=50000'

# x402 v2 sends the challenge base64-encoded in the PAYMENT-REQUIRED header (v1 sends it in the body).
# To read the header:
curl -sS -g -o /dev/null -D - 'https://api.fadeandco.workers.dev/api/agent-intel/whale-transaction-monitor?blocks=5&minUsd=50000' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode
JavaScript: pay and call
// npm i @x402/fetch @x402/evm viem
import { wrapFetchWithPayment, x402Client } from "@x402/fetch";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

// Pays at most $0.003 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.003" });
registerExactEvmScheme(client, { signer: privateKeyToAccount(process.env.EVM_PRIVATE_KEY) });
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? ToolVet checks it first for $0.005. Pay for that from a separate
// client: this one is capped at $0.003 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fapi.fadeandco.workers.dev%2Fapi%2Fagent-intel%2Fwhale-transaction-monitor
const res = await pay("https://api.fadeandco.workers.dev/api/agent-intel/whale-transaction-monitor?blocks=5&minUsd=50000");
console.log(res.status, await res.text());
Python: pay and call
# pip install "x402[requests,evm]"
import os
from eth_account import Account
from x402 import x402ClientSync
from x402.http.clients import x402_requests
from x402.mechanisms.evm import EthAccountSigner
from x402.mechanisms.evm.exact.register import register_exact_evm_client

# Pays at most $0.003 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.003"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://api.fadeandco.workers.dev/api/agent-intel/whale-transaction-monitor?blocks=5&minUsd=50000")
    print(res.status_code, res.text)

Security scan

No findings

We scan names, descriptions and tool definitions for hidden instructions and other prompt-injection patterns.

Recent checks

WhenResultHTTPTimePrice
4 h agoAmount "0.003" is not in atomic token units402115 ms$0.003
12 h agoAmount "0.003" is not in atomic token units402128 ms$0.003
21 h agoAmount "0.003" is not in atomic token units402707 ms$0.003
29 h agoAmount "0.003" is not in atomic token units402882 ms$0.003
37 h agoAmount "0.003" is not in atomic token units402123 ms$0.003
Show 10 older checks
45 h agoTimed out---
2 days agoAmount "0.003" is not in atomic token units4021.1 s$0.003
3 days agoAmount "0.003" is not in atomic token units4021.0 s$0.003
3 days agoAmount "0.003" is not in atomic token units402886 ms$0.003
3 days agoAmount "0.003" is not in atomic token units402813 ms$0.003
3 days agoAmount "0.003" is not in atomic token units402433 ms$0.003
4 days agoAmount "0.003" is not in atomic token units402109 ms$0.003
4 days agoAmount "0.003" is not in atomic token units402797 ms$0.003
4 days agoAmount "0.003" is not in atomic token units402555 ms$0.003
5 days agoAmount "0.003" is not in atomic token units402973 ms$0.003