Eol

{
  "cycles": [
    {
      "cycle": "26",
      "days_until_eol": 931,
      "eol_date": "2029-04-30",
      "is_eol": false,
      "latest": "26.11.1",
      "lts": "from 2026-10-28",
      "release_date": "2026-05-05"
    },
    {
      "cycle": "25",
      "days_until_eol": null,
      "eol_date": "2026-06-01",
      "is_eol": true,
      "latest": "25.9.0",
      "lts": false,
      "release_date": "2025-10-15"
    },
    {
      "cycle": "24",
      "days_until_eol": 566,
      "eol_date": "2028-04-30",
      "is_eol": false,
      "latest": "24.21.0",
      "lts": true,
      "release_date": "2025-05-06"
    }
  ],
  "latest_cycle": "26",
  "product": "nodejs",
  "source": "endoflife.date",
  "supported_cycles": [
    "26",
    "24",
    "22"
  ],
  "version": "18",
  "version_status": {
    "cycle": "18",
    "days_until_eol": null,
    "eol_date": "2025-04-30",
    "is_eol": true,
    "latest_in_cycle": "18.20.8",
    "lts": true,
    "verdict": "end-of-life: upgrade"
  }
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://saylorinnovations.com/api/eol/:product?version=18'

# 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://saylorinnovations.com/api/eol/:product?version=18' \
  | 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 $0.01 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.01" });
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 $0.01 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fsaylorinnovations.com%2Fapi%2Feol%2F%3Aproduct
const res = await pay("https://saylorinnovations.com/api/eol/:product?version=18");
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 $0.01 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.01"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://saylorinnovations.com/api/eol/:product?version=18")
    print(res.status_code, res.text)