ToolVet
80trust / 100

Defi Fees

by SiteCheck in Onchain & crypto

x402 APIPassing, checked 3 h ago

A DeFi protocol's fees and revenue for 24 hours, 7 days and 30 days, with the change over the last day against the day before, and the chains it runs on. Attribution: Data: DefiLlama. Information only, not financial advice.

GET
https://api.sitecheck-api.workers.dev/api/defi/fees
Price
$0.002
per call in USDC
Uptime
100%
last 30 days
Response time
77 ms
712 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

How to call it

GET https://api.sitecheck-api.workers.dev/api/defi/fees

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://api.sitecheck-api.workers.dev/api/defi/fees?protocol=aave

Parameters

ParameterTypeRequiredDescription
protocolstringYesDefiLlama protocol slug, e.g. aave or uniswap-v3

Example response

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

{
  "attribution": "Data: DefiLlama",
  "chains": [
    "Ethereum",
    "Polygon",
    "Avalanche"
  ],
  "checkedAt": "2026-10-14T07:00:24.717Z",
  "disclaimer": "Information only, not financial advice.",
  "fees": {
    "change1dPct": 4.97,
    "total24hUsd": 1304655,
    "total30dUsd": 38268893,
    "total7dUsd": 9204788
  },
  "protocol": "Aave",
  "revenue": {
    "change1dPct": 68.66,
    "total24hUsd": 272990,
    "total30dUsd": 5062205,
    "total7dUsd": 1269162
  },
  "source": "https://api.llama.fi/summary/fees/aave"
}

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://api.sitecheck-api.workers.dev/api/defi/fees?protocol=aave'

# 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/defi/fees?protocol=aave' \
  | 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%2Fapi.sitecheck-api.workers.dev%2Fapi%2Fdefi%2Ffees
const res = await pay("https://api.sitecheck-api.workers.dev/api/defi/fees?protocol=aave");
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://api.sitecheck-api.workers.dev/api/defi/fees?protocol=aave")
    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 agoPassed40277 ms$0.002
8 h agoPassed40286 ms$0.002
12 h agoPassed402144 ms$0.002
16 h agoPassed402712 ms$0.002
20 h agoPassed40244 ms$0.002
Show 1 older checks
25 h agoPassed40264 ms$0.002