Staking Liquido Pago

{
  "fuente": "Contratos en Ethereum + DefiLlama (APY)",
  "nota": "«vale» = cuántas unidades del activo base recibes por 1 token (sube con las recompensas de staking).",
  "tokens": [
    {
      "apy_pct": 2.238,
      "contrato": "0x7f39C581F595B53c5cb19bD0b3f8dA6c935E2Ca0",
      "en": "stETH",
      "token": "wstETH",
      "vale": 1.24540188
    },
    {
      "apy_pct": 2.17,
      "contrato": "0xae78736Cd615f374D3085123A210448E74Fc6393",
      "en": "ETH",
      "token": "rETH",
      "vale": 1.17295968
    },
    {
      "apy_pct": 2.303,
      "contrato": "0xBe9895146f7AF43049ca1c1AE358B0541Ea49704",
      "en": "ETH",
      "token": "cbETH",
      "vale": 1.14078757
    },
    {
      "apy_pct": 2.298,
      "contrato": "0xCd5fE23C85820F7B72D0926FC9b05b43E359b7ee",
      "en": "eETH",
      "token": "weETH",
      "vale": 1.10491857
    },
    {
      "apy_pct": 2.514,
      "contrato": "0xac3E018457B222d93114458476f3E3416Abbe38F",
      "en": "frxETH",
      "token": "sfrxETH",
      "vale": 1.17077937
    }
  ]
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://api.vextorium.com/staking-liquido-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/staking-liquido-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%2Fstaking-liquido-pago&method=POST
const res = await pay("https://api.vextorium.com/staking-liquido-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/staking-liquido-pago",
        json={},
    )
    print(res.status_code, res.text)