ToolVet
72trust / 100

Onramp Quote

by Fiat Onramp Quote in Markets & finance

x402 APIPassing, checked 4 h ago

🆕 Prices the same fiat purchase across EVERY payment method a country allows, and ranks them by what the buyer actually receives. On $100 in the US the spread is real: card takes 2.44, bank transfer 0.50, a funded fiat wallet nothing. Returns each rail's fee, net amount, min/max limits, and the cheapest one. Live Coinbase pricing, not a rate card. Pass address= for a payable checkout link. Not financial advice.

GET
https://402.com.tr/api/x402/onramp-quote
Price
$0.03
per call in USDC
Uptime
100%
last 30 days
Response time
468 ms
614 ms slowest 5%
Last check
Passed
4 h ago, next in 2 h

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://402.com.tr/api/x402/onramp-quote

Each call costs $0.03 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://402.com.tr/api/x402/onramp-quote?address=0x973a31858f4d2125f48c880542da11a2796f12d6&amount=100&asset=USDC&country=US&currency=EUR&network=base

Parameters

ParameterTypeRequiredDescription
addressstringNoDestination wallet (optional — needed for a checkout link)
amountstringYesFiat amount
assetstringNoAsset to buy (optional, default USDC)
countrystringYesISO country code
currencystringNoFiat currency (optional, default USD)
networkstringNoNetwork (optional, default base)

Example response

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

{
  "amount": 100,
  "asset": "USDC",
  "availableMethodsCount": 3,
  "checkedAt": "2026-10-11T17:24:34.135Z",
  "country": "US",
  "currency": "EUR",
  "network": "base",
  "supported": true
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.03.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://402.com.tr/api/x402/onramp-quote?address=0x973a31858f4d2125f48c880542da11a2796f12d6&amount=100&asset=USDC&country=US&currency=EUR&network=base'

# 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://402.com.tr/api/x402/onramp-quote?address=0x973a31858f4d2125f48c880542da11a2796f12d6&amount=100&asset=USDC&country=US&currency=EUR&network=base' \
  | 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 $0.03 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.03" });
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 $0.03 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2F402.com.tr%2Fapi%2Fx402%2Fonramp-quote
const res = await pay("https://402.com.tr/api/x402/onramp-quote?address=0x973a31858f4d2125f48c880542da11a2796f12d6&amount=100&asset=USDC&country=US&currency=EUR&network=base");
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 $0.03 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.03"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://402.com.tr/api/x402/onramp-quote?address=0x973a31858f4d2125f48c880542da11a2796f12d6&amount=100&asset=USDC&country=US&currency=EUR&network=base")
    print(res.status_code, res.text)

Security scan

No findings

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Recent checks

WhenResultHTTPTimePrice
4 h agoPassed402521 ms$0.03
15 h agoPassed402516 ms$0.03
25 h agoPassed402460 ms$0.03
35 h agoPassed402466 ms$0.03
39 h agoPassed402459 ms$0.03
Show 10 older checks
43 h agoPassed402473 ms$0.03
2 days agoPassed402472 ms$0.03
2 days agoPassed402614 ms$0.03
2 days agoPassed402497 ms$0.03
3 days agoPassed402390 ms$0.03
3 days agoPassed402584 ms$0.03
3 days agoPassed402425 ms$0.03
3 days agoPassed402390 ms$0.03
3 days agoPassed402528 ms$0.03
4 days agoPassed4023.9 s$0.03