SiteCheck

Tide predictions (high and low water, metres above MLLW, UTC times) for 1 to 7 days at the NOAA station nearest a point, or at a station id, from NOAA CO-OPS (US public domain). Give lat and lon, or a place name. Coverage is US coasts, Great Lakes and territories only; a point more than 100 km from a station is a 404, not charged. search=name lists stations.

Open endpoint ↗

Price per call: $0.002
Chain: Base
Method: GET
Paid calls · 30 days: 2

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://api.sitecheck-api.workers.dev/api/tides", { method: "GET" });
console.log(await res.json());

https://api.sitecheck-api.workers.dev/api/tides