ToolVet
73trust / 100

Arc Impact

by Price impact & slippage on Arc in Onchain & crypto

x402 APIPassing, checked 45 min ago

Price impact for an Arc token: what buying and selling $10, $100 and $1,000 would really get, each quoted by the Uniswap v4 Quoter on the token's deepest USDC pool (simulated, nothing spent). Pass ?token=0x.... Returns the mid price, the pool and its fee, and for each size the tokens or USDC out, the effective price and the cost or loss against the mid price (fee and impact included). A pool whose hook refuses quotes, no USDC pool or a failed read is refused before payment.

GET
https://apexfaucet.xyz/api/x402/arc-impact
Price
$0.002
per call in USDC
Uptime
100%
last 30 days
Response time
858 ms
3.0 s slowest 5%
Last check
Passed
45 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://apexfaucet.xyz/api/x402/arc-impact

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://apexfaucet.xyz/api/x402/arc-impact?token=0x59933F316417C89d9dC5107B30f08C99b774Ea9D

Parameters

ParameterTypeRequiredDescription
tokenstringYesArc token contract address.

Example response

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

Example response, 31 lines
{
  "data": {
    "block": 25094629,
    "liquidityUsdEstimate": 27.5,
    "method": "Each row is a real quote from the Uniswap v4 Quoter (0x8Dc178eF…) on the pool sh…",
    "midPrice": 0.00002318672117375561,
    "note": "A quote, not a promise: the pool can move before a trade lands.",
    "ok": true,
    "pool": {
      "fee": 3000,
      "hooks": "0x0000000000000000000000000000000000000000",
      "id": "0xcdf5b51387e17311af6abfad3aabe27b536090a60dafa35a043efea3a386fa04",
      "tickSpacing": 60
    },
    "poolFeePct": 0.3,
    "sizes": [
      {
        "buy": {},
        "sell": {},
        "usd": 10
      }
    ],
    "symbol": "APEX",
    "token": "0x59933f316417c89d9dc5107b30f08c99b774ea9d",
    "warnings": [
      "thin: under $50 of liquidity"
    ]
  },
  "ok": true,
  "paid": 0.002
}

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://apexfaucet.xyz/api/x402/arc-impact?token=0x59933F316417C89d9dC5107B30f08C99b774Ea9D'

# 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://apexfaucet.xyz/api/x402/arc-impact?token=0x59933F316417C89d9dC5107B30f08C99b774Ea9D' \
  | 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%2Fapexfaucet.xyz%2Fapi%2Fx402%2Farc-impact
const res = await pay("https://apexfaucet.xyz/api/x402/arc-impact?token=0x59933F316417C89d9dC5107B30f08C99b774Ea9D");
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://apexfaucet.xyz/api/x402/arc-impact?token=0x59933F316417C89d9dC5107B30f08C99b774Ea9D")
    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
45 min agoPassed402623 ms$0.002
6 h agoPassed402871 ms$0.002
10 h agoPassed402860 ms$0.002
15 h agoPassed402702 ms$0.002
20 h agoPassed402828 ms$0.002
Show 10 older checks
24 h agoPassed402568 ms$0.002
29 h agoPassed402404 ms$0.002
33 h agoPassed402555 ms$0.002
37 h agoPassed402616 ms$0.002
41 h agoPassed402970 ms$0.002
45 h agoPassed402724 ms$0.002
2 days agoPassed4021.1 s$0.002
2 days agoPassed402604 ms$0.002
2 days agoPassed402907 ms$0.002
3 days agoPassed4022.9 s$0.002