ToolVet
71trust / 100

Wallet Watch

by Citiview Agent Market in Onchain & crypto

x402 APIPassing, checked 4 h ago

Wallet activity alerts: watch any wallet on Base, Ethereum, Arbitrum, Optimism or Polygon for 7 days; every incoming or outgoing transfer (ETH, tokens, NFTs) is POSTed to your webhook URL within about 10 minutes. Check status with the watch id. Also callable as GET with the same fields as query parameters.

GET
https://agents.citiviewgroup.com/v1/wallet/watch
Price
$0.02
per call in USDC
Uptime
100%
last 30 days
Response time
933 ms
1.8 s slowest 5%
Last check
Passed
4 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://agents.citiviewgroup.com/v1/wallet/watch

Each call costs $0.02 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://agents.citiviewgroup.com/v1/wallet/watch?address=0xD2bc1DaA83F64729BfB3f825e690F3fce13e1AA2&chain=base&webhook_url=https%3A%2F%2Fhttpbin.org%2Fpost

Parameters

ParameterTypeRequiredDescription
addressstringNo0x wallet to watch
chainstringNobase (default) | ethereum | arbitrum | optimism | polygon
daysintegerNo1-7
idstringNoCheck an existing watch
webhook_urlstringNoYour https URL that receives the alerts

Example response

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

{
  "checks": "every 10 minutes",
  "expires": "2026-10-20T12:00:00.000Z",
  "id": "a1b2c3d4e5f6a7b8c9d0"
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.02.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://agents.citiviewgroup.com/v1/wallet/watch?address=0xD2bc1DaA83F64729BfB3f825e690F3fce13e1AA2&chain=base&webhook_url=https%3A%2F%2Fhttpbin.org%2Fpost'

# 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://agents.citiviewgroup.com/v1/wallet/watch?address=0xD2bc1DaA83F64729BfB3f825e690F3fce13e1AA2&chain=base&webhook_url=https%3A%2F%2Fhttpbin.org%2Fpost' \
  | 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 $0.02 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.02" });
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 $0.02 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fagents.citiviewgroup.com%2Fv1%2Fwallet%2Fwatch
const res = await pay("https://agents.citiviewgroup.com/v1/wallet/watch?address=0xD2bc1DaA83F64729BfB3f825e690F3fce13e1AA2&chain=base&webhook_url=https%3A%2F%2Fhttpbin.org%2Fpost");
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 $0.02 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.02"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://agents.citiviewgroup.com/v1/wallet/watch?address=0xD2bc1DaA83F64729BfB3f825e690F3fce13e1AA2&chain=base&webhook_url=https%3A%2F%2Fhttpbin.org%2Fpost")
    print(res.status_code, res.text)

Security scan

No findings

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Recent checks

WhenResultHTTPTimePrice
4 h agoPassed40255 ms$0.02
8 h agoPassed4021.8 s$0.02
12 h agoPassed4021.1 s$0.02
16 h agoPassed4021.6 s$0.02
21 h agoPassed402521 ms$0.02
Show 6 older checks
25 h agoPassed40257 ms$0.02
29 h agoPassed4021.8 s$0.02
33 h agoPassed40244 ms$0.02
37 h agoPassed40255 ms$0.02
41 h agoPassed402933 ms$0.02
2 days agoPassed4021.1 s$0.02