ToolVet
74trust / 100

Fx Customs Rate

by api.agentfeeds.jp in Markets & finance

x402 APIPassing, checked 1 h ago

Weekly official Japan Customs reference exchange rate (税関長公示レート) used to convert import declaration values to yen under Article 4-7 of the Customs Tariff Law -- a live proxy to the Customs weekly CSV, not a real-time market rate. Source: Japan Customs (customs.go.jp), whose terms of use explicitly permit commercial use. Factual published data only; not a live FX quote or trading advice.

GET
https://api.agentfeeds.jp/v1/jp/fx/customs_rate
Price
$0.002
per call in USDC
Uptime
100%
last 30 days
Response time
866 ms
959 ms slowest 5%
Last check
Passed
1 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 · Watch with other listings

How to call it

GET https://api.agentfeeds.jp/v1/jp/fx/customs_rate

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.agentfeeds.jp/v1/jp/fx/customs_rate?currency=USD

Parameters

ParameterTypeRequiredDescription
currencystringNooptional 3-letter ISO currency code filter, e.g. USD (omit for all currencies)
datestringNooptional ISO date to select the applicable week, default today

Example response

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

{
  "data": {
    "applicable_period": "令和７年６月22日から令和７年６月28日まで",
    "currencies": 1,
    "rates": [
      {
        "country_code": "304",
        "country_name_ja": "アメリカ合衆国",
        "currency_name_ja": "ドル",
        "iso": "USD",
        "note": null,
        "yen_per_unit": 144.29
      }
    ]
  },
  "kind": "factual_data",
  "product": "jp.fx.customs_rate"
}

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.agentfeeds.jp/v1/jp/fx/customs_rate?currency=USD'

# 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.agentfeeds.jp/v1/jp/fx/customs_rate?currency=USD' \
  | 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.agentfeeds.jp%2Fv1%2Fjp%2Ffx%2Fcustoms_rate
const res = await pay("https://api.agentfeeds.jp/v1/jp/fx/customs_rate?currency=USD");
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.agentfeeds.jp/v1/jp/fx/customs_rate?currency=USD")
    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
1 h agoPassed402901 ms$0.002
7 h agoPassed402810 ms$0.002
12 h agoPassed402830 ms$0.002
17 h agoPassed402895 ms$0.002
22 h agoPassed402924 ms$0.002
Show 10 older checks
27 h agoPassed402879 ms$0.002
32 h agoPassed402834 ms$0.002
37 h agoPassed402828 ms$0.002
42 h agoPassed402342 ms$0.002
46 h agoPassed402949 ms$0.002
2 days agoPassed402870 ms$0.002
2 days agoPassed402841 ms$0.002
3 days agoPassed402910 ms$0.002
3 days agoPassed402925 ms$0.002
3 days agoPassed402891 ms$0.002