ToolVet
78trust / 100

Evm Transfers

by SiteCheck in Onchain & crypto

x402 APIPassing, checked 2 h ago

ERC-20 transfers into and out of an address in a window of recent blocks (default 2,000, max 10,000), from Transfer logs, newest first, max 100 rows with token symbols. token limits the search to one contract. A busy address can be truncated: narrow the window to see the rest.

GET
https://api.sitecheck-api.workers.dev/api/evm/transfers
Price
$0.003
per call in USDC
Uptime
100%
last 30 days
Response time
62 ms
78 ms slowest 5%
Last check
Passed
2 h ago, next any minute now

Run a free test callHow to call it

Reliability

All checks passedSome failedAll failedNot checked

Status and outage history · Atom feed

How to call it

GET https://api.sitecheck-api.workers.dev/api/evm/transfers

Each call costs $0.003 in USDC on Base, 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.sitecheck-api.workers.dev/api/evm/transfers?address=0xb2cc224c1c9fee385f8ad6a55b4d94e92359dc59&blocks=300&chain=base&token=0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Parameters

ParameterTypeRequiredDescription
addressstringYesEVM address, 0x…
blocksstringNoBlocks to search back from the latest (max 10000)
chainstringNobase (default), ethereum, arbitrum, optimism or polygon
tokenstringNoOptional ERC-20 contract, 0x…

Example response

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

Example response, 41 lines
{
  "address": "0xb2cc224c1c9feE385f8ad6a55b4d94E92359DC59",
  "chain": "base",
  "checkedAt": "2026-10-14T04:49:19.044Z",
  "count": 100,
  "disclaimer": "Information only, not financial advice.",
  "source": "https://base-rpc.publicnode.com (eth_blockNumber, eth_getLogs on the ERC-20 Transfer topic, eth_call symbol and decimals)",
  "token": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
  "transfers": [
    {
      "amount": 952757.118257,
      "block": 52582005,
      "counterparty": "0x787fD1dc3b533171781e4Ae1A563c1AC7b4435E4",
      "direction": "in",
      "from": "0x787fD1dc3b533171781e4Ae1A563c1AC7b4435E4",
      "raw": "952757118257",
      "symbol": "USDC",
      "to": "0xb2cc224c1c9feE385f8ad6a55b4d94E92359DC59",
      "token": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "txHash": "0x5080f1974a4c15bd1ed1bfc5641862c683cdf2bfc754a26a17e157896003a1a7"
    },
    {
      "amount": 251737.379957,
      "block": 52582005,
      "counterparty": "0xb093da272A66D47b7445cA389CEbdc6d3Ac7753D",
      "direction": "in",
      "from": "0xb093da272A66D47b7445cA389CEbdc6d3Ac7753D",
      "raw": "251737379957",
      "symbol": "USDC",
      "to": "0xb2cc224c1c9feE385f8ad6a55b4d94E92359DC59",
      "token": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "txHash": "0x183ef10891468a78a101da359e1a925584f07c3104220caf31d30d591a187ae4"
    }
  ],
  "truncated": true,
  "window": {
    "blocks": 300,
    "fromBlock": 52581706,
    "toBlock": 52582005
  }
}

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.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://api.sitecheck-api.workers.dev/api/evm/transfers?address=0xb2cc224c1c9fee385f8ad6a55b4d94e92359dc59&blocks=300&chain=base&token=0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913'

# 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.sitecheck-api.workers.dev/api/evm/transfers?address=0xb2cc224c1c9fee385f8ad6a55b4d94e92359dc59&blocks=300&chain=base&token=0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913' \
  | 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.sitecheck-api.workers.dev%2Fapi%2Fevm%2Ftransfers
const res = await pay("https://api.sitecheck-api.workers.dev/api/evm/transfers?address=0xb2cc224c1c9fee385f8ad6a55b4d94e92359dc59&blocks=300&chain=base&token=0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913");
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.sitecheck-api.workers.dev/api/evm/transfers?address=0xb2cc224c1c9fee385f8ad6a55b4d94e92359dc59&blocks=300&chain=base&token=0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913")
    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
2 h agoPassed40278 ms$0.003
7 h agoPassed402171 ms$0.003
11 h agoPassed40255 ms$0.003
15 h agoPassed40254 ms$0.003
19 h agoPassed40266 ms$0.003
Show 1 older checks
23 h agoPassed40262 ms$0.003