ToolVet
77trust / 100

Whale

by kronos.forgemesh.io in Onchain & crypto

x402 APIPassing, checked 54 min ago

Returns whale, CEX, bridge, and stablecoin flow alerts for a chosen chain and lookback window, each with direction, venue, and USD value — use it to catch large capital movements before they move price. Typical agent tasks: check for a large exchange inflow on Base, monitor bridge flows into or out of a chain, track stablecoin issuer mint or burn events, or add on-chain flow context to a crypto market-intelligence pipeline. Configurable 1-168 hour lookback, USDC on Base via x402.

GET
https://kronos.forgemesh.io/api/whale
Price
$0.02
per call in USDC
Uptime
100%
last 30 days
Response time
432 ms
553 ms slowest 5%
Last check
Passed
54 min 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://kronos.forgemesh.io/api/whale

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://kronos.forgemesh.io/api/whale?chain=base&hours=4

Parameters

ParameterTypeRequiredDescription
chainstringNo One of: ethereum, base, arbitrum.
hoursnumberNo

Example response

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

{
  "alert_count": 2,
  "alerts": [
    {
      "direction": "in",
      "type": "exchange_flow",
      "value_usd": 750000,
      "venue": "Coinbase"
    }
  ],
  "chain": "base",
  "window_hours": 4
}

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://kronos.forgemesh.io/api/whale?chain=base&hours=4'

# 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://kronos.forgemesh.io/api/whale?chain=base&hours=4' \
  | 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%2Fkronos.forgemesh.io%2Fapi%2Fwhale
const res = await pay("https://kronos.forgemesh.io/api/whale?chain=base&hours=4");
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://kronos.forgemesh.io/api/whale?chain=base&hours=4")
    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
54 min agoPassed402409 ms$0.02
6 h agoPassed402553 ms$0.02
10 h agoPassed402460 ms$0.02
15 h agoPassed402492 ms$0.02
20 h agoPassed402380 ms$0.02
Show 10 older checks
24 h agoPassed402458 ms$0.02
28 h agoPassed402459 ms$0.02
32 h agoPassed402448 ms$0.02
37 h agoPassed402464 ms$0.02
41 h agoPassed402525 ms$0.02
45 h agoPassed402432 ms$0.02
2 days agoPassed402210 ms$0.02
2 days agoPassed402478 ms$0.02
2 days agoPassed402489 ms$0.02
3 days agoPassed402394 ms$0.02