Trade Incoterms

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://tradepulse.theaslangroupllc.com/api/trade/incoterms?from_country=seller%2Fexporting+country+for+corridor-specific+context+%28optional%29&lang=en+%7C+es+%7C+fr+%7C+de+%7C+ja+%7C+pt+%7C+zh+%7C+ko+%7C+ar+%28default%3A+en%29&product=product+type+for+transport-mode+guidance+%28optional%29&term=%28required%29+Incoterms+2020+rule+%E2%80%94+one+of%3A+EXW%2C+FCA%2C+FAS%2C+FOB%2C+CFR%2C+CIF%2C+CPT%2C+CIP%2C+DAP%2C+DPU%2C+DDP&to_country=buyer%2Fimporting+country+for+corridor-specific+context+%28optional%29'

# 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://tradepulse.theaslangroupllc.com/api/trade/incoterms?from_country=seller%2Fexporting+country+for+corridor-specific+context+%28optional%29&lang=en+%7C+es+%7C+fr+%7C+de+%7C+ja+%7C+pt+%7C+zh+%7C+ko+%7C+ar+%28default%3A+en%29&product=product+type+for+transport-mode+guidance+%28optional%29&term=%28required%29+Incoterms+2020+rule+%E2%80%94+one+of%3A+EXW%2C+FCA%2C+FAS%2C+FOB%2C+CFR%2C+CIF%2C+CPT%2C+CIP%2C+DAP%2C+DPU%2C+DDP&to_country=buyer%2Fimporting+country+for+corridor-specific+context+%28optional%29' \
  | 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 $0.1 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.1" });
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 $0.1 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Ftradepulse.theaslangroupllc.com%2Fapi%2Ftrade%2Fincoterms
const res = await pay("https://tradepulse.theaslangroupllc.com/api/trade/incoterms?from_country=seller%2Fexporting+country+for+corridor-specific+context+%28optional%29&lang=en+%7C+es+%7C+fr+%7C+de+%7C+ja+%7C+pt+%7C+zh+%7C+ko+%7C+ar+%28default%3A+en%29&product=product+type+for+transport-mode+guidance+%28optional%29&term=%28required%29+Incoterms+2020+rule+%E2%80%94+one+of%3A+EXW%2C+FCA%2C+FAS%2C+FOB%2C+CFR%2C+CIF%2C+CPT%2C+CIP%2C+DAP%2C+DPU%2C+DDP&to_country=buyer%2Fimporting+country+for+corridor-specific+context+%28optional%29");
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 $0.1 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.1"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://tradepulse.theaslangroupllc.com/api/trade/incoterms?from_country=seller%2Fexporting+country+for+corridor-specific+context+%28optional%29&lang=en+%7C+es+%7C+fr+%7C+de+%7C+ja+%7C+pt+%7C+zh+%7C+ko+%7C+ar+%28default%3A+en%29&product=product+type+for+transport-mode+guidance+%28optional%29&term=%28required%29+Incoterms+2020+rule+%E2%80%94+one+of%3A+EXW%2C+FCA%2C+FAS%2C+FOB%2C+CFR%2C+CIF%2C+CPT%2C+CIP%2C+DAP%2C+DPU%2C+DDP&to_country=buyer%2Fimporting+country+for+corridor-specific+context+%28optional%29")
    print(res.status_code, res.text)