Energy World Customs Tariff Wits

{
  "checkedAt": "2026-10-23T09:38:28.861Z",
  "count": 3,
  "partner": {
    "code": "000",
    "name": "World"
  },
  "product": "870323",
  "reporter": {
    "code": "792",
    "input": "TUR",
    "name": "Turkey"
  },
  "source": "https://wits.worldbank.org/API/V1/SDMX/V21/rest/data/DF_WITS_Tariff_TRAINS/A.792.000.870323.reported/?startperiod=2011&endperiod=2026",
  "tariffs": [
    {
      "averageRatePct": 10,
      "maxRatePct": 10,
      "minRatePct": 10,
      "nomenclature": "H6",
      "tariffLines": 9,
      "tariffType": "MFN",
      "year": 2023
    },
    {
      "averageRatePct": 10,
      "maxRatePct": 10,
      "minRatePct": 10,
      "nomenclature": "H6",
      "tariffLines": 9,
      "tariffType": "MFN",
      "year": 2022
    }
  ]
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://api.tradeenergy-api.workers.dev/api/energy/world-customs-tariff-wits?product=870323&reporter=TUR&years=3'

# 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.tradeenergy-api.workers.dev/api/energy/world-customs-tariff-wits?product=870323&reporter=TUR&years=3' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode

// 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.tradeenergy-api.workers.dev%2Fapi%2Fenergy%2Fworld-customs-tariff-wits
const res = await pay("https://api.tradeenergy-api.workers.dev/api/energy/world-customs-tariff-wits?product=870323&reporter=TUR&years=3");
console.log(res.status, await res.text());

# 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.tradeenergy-api.workers.dev/api/energy/world-customs-tariff-wits?product=870323&reporter=TUR&years=3")
    print(res.status_code, res.text)