ToolVet
81trust / 100

Crypto Balance

by Sift Web Tools in Onchain & crypto

x402 APIPassing, checked 3 h ago

Wallet balance: native coin plus USDC/USDT/DAI, ENS name, on 5 chains. Balance of any wallet (0x address or .eth name) on ethereum, base, arbitrum, optimism or polygon: native coin, USDC, USDT and DAI, whether it is a contract, and its verified ENS name.

GET
https://sift.srv1996466.hstgr.cloud/v1/crypto/balance
Price
$0.002
per call in USDC
Uptime
96.2%
last 30 days
Response time
248 ms
425 ms slowest 5%
Last check
Passed
3 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 · Watch with other listings

How to call it

GET https://sift.srv1996466.hstgr.cloud/v1/crypto/balance

Each call costs $0.002 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://sift.srv1996466.hstgr.cloud/v1/crypto/balance?address=vitalik.eth

Parameters

ParameterTypeRequiredDescription
addressstringYes0x address or .eth name
chainstringNoethereum, base, arbitrum, optimism or polygon (default base)

Example response

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

{
  "address": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
  "ens_name": "vitalik.eth",
  "native": {
    "balance": 1.23,
    "symbol": "ETH"
  },
  "stablecoins": {
    "USDC": 10
  }
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.002.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://sift.srv1996466.hstgr.cloud/v1/crypto/balance?address=vitalik.eth'

# 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://sift.srv1996466.hstgr.cloud/v1/crypto/balance?address=vitalik.eth' \
  | 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 $0.002 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.002" });
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 $0.002 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fsift.srv1996466.hstgr.cloud%2Fv1%2Fcrypto%2Fbalance
const res = await pay("https://sift.srv1996466.hstgr.cloud/v1/crypto/balance?address=vitalik.eth");
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 $0.002 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.002"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://sift.srv1996466.hstgr.cloud/v1/crypto/balance?address=vitalik.eth")
    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
3 h agoPassed402425 ms$0.002
7 h agoPassed402264 ms$0.002
12 h agoPassed402264 ms$0.002
16 h agoPassed402250 ms$0.002
20 h agoPassed402269 ms$0.002
Show 10 older checks
24 h agoPassed402309 ms$0.002
28 h agoPassed402488 ms$0.002
33 h agoPassed402243 ms$0.002
37 h agoPassed402257 ms$0.002
40 h agoPassed402248 ms$0.002
44 h agoPassed402180 ms$0.002
2 days agoPassed402259 ms$0.002
2 days agoPassed402360 ms$0.002
2 days agoPassed402277 ms$0.002
3 days agoPassed402237 ms$0.002