Chain Block

Last 30 days

Uptime

100%

Response time

254 ms typical, 254 ms slowest 5%

Last check

34 min ago

Next check

any minute now

How to call it

# See the payment challenge (nothing is charged)
curl -i -X POST "https://api.x-402.online/v1/chain/block" \
  -H "content-type: application/json" \
  -d '{}'

import { wrapFetchWithPayment } from "@x402/fetch";
import { x402Client } from "@x402/core/client";
import { ExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

const client = new x402Client().register(
  "eip155:8453",
  new ExactEvmScheme(privateKeyToAccount(process.env.AGENT_KEY)),
);
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? Preflight it first for $0.005:
// GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fapi.x-402.online%2Fv1%2Fchain%2Fblock
const res = await pay("https://api.x-402.online/v1/chain/block", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({}),
});
console.log(await res.json());

Example input

{}

Example output

{
  "age_seconds": 2,
  "base_fee_gwei": 0.0051,
  "block_number": 40000000,
  "chain": "base",
  "timestamp_iso": "2026-09-23T12:00:00.000Z",
  "transactions": 180
}

Security scan

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