Gas Comparar Pago

{
  "mas_barata_swap": "optimism",
  "nota": "En los L2 (Base, Arbitrum, Optimism) se suma una pequeña tarifa de datos a L1 que no se incluye aquí.",
  "precios_nativos_usd": {
    "eth": 2707.22696629,
    "pol": null
  },
  "redes": [
    {
      "envio_token_usd": 0.00106,
      "gas_gwei": 0.006008,
      "nativo": "ETH",
      "red": "base",
      "swap_usd": 0.00293,
      "transferencia_usd": 0.00034
    },
    {
      "envio_token_usd": 0.15889,
      "gas_gwei": 0.902926,
      "nativo": "ETH",
      "red": "ethereum",
      "swap_usd": 0.44,
      "transferencia_usd": 0.05133
    },
    {
      "envio_token_usd": 0.00352,
      "gas_gwei": 0.020012,
      "nativo": "ETH",
      "red": "arbitrum",
      "swap_usd": 0.00975,
      "transferencia_usd": 0.00114
    },
    {
      "envio_token_usd": 0.00018,
      "gas_gwei": 0.001004,
      "nativo": "ETH",
      "red": "optimism",
      "swap_usd": 0.00049,
      "transferencia_usd": 0.00006
    },
    {
      "envio_token_usd": null,
      "gas_gwei": 277.023823,
      "nativo": "POL",
      "red": "polygon",
      "swap_usd": null,
      "transferencia_usd": null
    }
  ]
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://api.vextorium.com/gas-comparar-pago' \
  -H 'content-type: application/json' \
  --data-raw '{}'

# 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://api.vextorium.com/gas-comparar-pago' \
  -H 'content-type: application/json' \
  --data-raw '{}' \
  | 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 $0.004 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.004" });
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 $0.004 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fapi.vextorium.com%2Fgas-comparar-pago&method=POST
const res = await pay("https://api.vextorium.com/gas-comparar-pago", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({}),
});
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 $0.004 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.004"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://api.vextorium.com/gas-comparar-pago",
        json={},
    )
    print(res.status_code, res.text)