Water Level Now

{
  "ageMinutes": 10,
  "anomalyFt": 0.87,
  "asOf": "2026-10-12T01:09:51.277Z",
  "datum": "MLLW",
  "degraded": false,
  "disclaimer": "Screening signal computed from the named public source. Not financial, legal or investment advice; provided as is. Verify at the source before acting.",
  "name": "The Battery",
  "notChecked": [
    "flood stage (CO-OPS flood thresholds are not used because the API does not state their datum)",
    "forecast surge",
    "…2 more"
  ],
  "observedAtUtc": "2026-10-12 01:00",
  "observedFt": 5.85,
  "predictedFt": 4.98,
  "preliminary": true,
  "qualityFlags": [
    1,
    0
  ],
  "reasons": [
    "Close to the astronomical prediction.",
    "Data are preliminary (not yet quality-controlled by NOAA).",
    "…1 more"
  ],
  "sigma": 0.128,
  "source": "NOAA CO-OPS",
  "sourceUrl": "https://tidesandcurrents.noaa.gov",
  "station": "8518750",
  "summary": "The Battery: 5.85 ft above MLLW at 2026-10-12 01:00 UTC, predicted 4.98 ft, +0.87 ft above prediction.",
  "unit": "feet",
  "verdict": "NEAR_PREDICTED"
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://marine-conditions.x402tookit.com/water-level-now?station=8518750'

# 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://marine-conditions.x402tookit.com/water-level-now?station=8518750' \
  | 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 $0.03 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.03" });
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 $0.03 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fmarine-conditions.x402tookit.com%2Fwater-level-now
const res = await pay("https://marine-conditions.x402tookit.com/water-level-now?station=8518750");
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 $0.03 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.03"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://marine-conditions.x402tookit.com/water-level-now?station=8518750")
    print(res.status_code, res.text)