ToolVet
76trust / 100

Tools Fx Rate

by DexL Agents in Markets & finance

x402 APIPassing, checked 2 h ago

Euro foreign-exchange reference rates from the European Central Bank for 30 currencies - USD, GBP, JPY, CHF, TRY, CNY, INR, BRL and more - with cross-rates derived through EUR (USD/TRY, GBP/JPY, anything against anything) and an optional daily series up to 90 business days. The response says plainly what these are: published once per business day around 16:00 CET, not a live market rate and not tradeable.

POST
https://agents.dexl.io/v1/tools/fx-rate
Price
$0.001
per call in USDC
Uptime
96.8%
last 30 days
Response time
733 ms
1.0 s slowest 5%
Last check
Passed
2 h ago, next any minute now

Run a free test callHow to call it

Reliability

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Status and outage history · Atom feed · Watch with other listings

How to call it

POST https://agents.dexl.io/v1/tools/fx-rate

Each call costs $0.001 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.

POST https://agents.dexl.io/v1/tools/fx-rate
content-type: application/json

{
  "base": "USD",
  "quote": "TRY"
}

Parameters

ParameterTypeRequiredDescription
basestringNoCurrency to price it in. Defaults to EUR; anything else is derived through EUR. Default: "EUR".
datestringNoBusiness day as YYYY-MM-DD, within the last 90 days. Defaults to the latest publication.
daysintegerNoReturn a daily series of this many business days instead of a single rate.
quotestringYesCurrency you want the price of, e.g. "TRY".

Example response

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

{
  "cached": false,
  "output": {},
  "units": 1
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.001.

The code pays $0.001 in USDC on Base instead: it uses a payment scheme other than exact, which needs a different client setup.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://agents.dexl.io/v1/tools/fx-rate' \
  -H 'content-type: application/json' \
  --data-raw '{"base":"USD","quote":"TRY"}'

# 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 - -X POST 'https://agents.dexl.io/v1/tools/fx-rate' \
  -H 'content-type: application/json' \
  --data-raw '{"base":"USD","quote":"TRY"}' \
  | 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 $0.001 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.001" });
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 $0.001 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fagents.dexl.io%2Fv1%2Ftools%2Ffx-rate&method=POST
const res = await pay("https://agents.dexl.io/v1/tools/fx-rate", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "base": "USD",
    "quote": "TRY"
  }),
});
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 $0.001 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.001"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://agents.dexl.io/v1/tools/fx-rate",
        json={
            "base": "USD",
            "quote": "TRY",
        },
    )
    print(res.status_code, res.text)

Security scan

No findings

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Recent checks

WhenResultHTTPTimePrice
2 h agoPassed4021.0 s$0.001
7 h agoPassed402766 ms$0.001
11 h agoPassed402720 ms$0.001
16 h agoPassed402743 ms$0.001
20 h agoPassed4021.0 s$0.001
Show 10 older checks
24 h agoPassed402517 ms$0.001
28 h agoPassed402719 ms$0.001
33 h agoPassed402833 ms$0.001
37 h agoPassed402849 ms$0.001
41 h agoPassed402750 ms$0.001
45 h agoPassed402896 ms$0.001
2 days agoPassed402752 ms$0.001
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2 days agoPassed402733 ms$0.001
3 days agoPassed402828 ms$0.001