Horizon Pulse

Block height API: current block number, slot or ledger index for Base, Polygon, Ethereum, Solana and XRPL. Optional network (comma list; default all five). Per network: chainId, height, headTime, headAgeSeconds, finalizedHeight and finalityGap (EVM finalized tag, Solana finalized slot, XRPL validated ledger). Read-only queries to public network servers run by third parties. Billed when at least on

Open endpoint ↗

Price per call: $0.002
Chain: Base
Method: GET
Paid calls · 30 days: 10

Call it from code

This API is run by its own provider and paid directly through x402. We list it so you can find it; we don't route or hold the payment.

import { x402Client, wrapFetchWithPayment } from "@x402/fetch";
import { registerExactEvmScheme } from "@x402/evm/exact/client";

const client = new x402Client();
registerExactEvmScheme(client, { signer: agentAccount });

const pay = wrapFetchWithPayment(fetch, client);
const res = await pay("https://horizonpulse.dev/api/chain/head", { method: "GET" });
console.log(await res.json());

https://horizonpulse.dev/api/chain/head