Vessels Port Calls

{
  "call_count": 1,
  "calls": [
    {
      "arrival_estimated": false,
      "arrived_at": "2026-08-25T09:12:00Z",
      "country": "NL",
      "departed_at": null,
      "departure_estimated": false,
      "duration_seconds": null,
      "locode": "NLRTM",
      "port_name": "Rotterdam"
    }
  ],
  "coverage_start": "2026-08-23T00:00:00Z",
  "current_port": {
    "arrival_estimated": false,
    "arrived_at": "2026-08-25T09:12:00Z",
    "country": "NL",
    "locode": "NLRTM",
    "port_name": "Rotterdam"
  },
  "license_url": "https://aisfleet.com/agent-data-license/",
  "mmsi": "123456789",
  "provider": "AIS Fleet",
  "truncated": false,
  "window_days": 30,
  "window_end": "2026-08-25T09:12:00Z",
  "window_start": "2026-07-26T09:12:00Z"
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://aisfleet.com/api/x402/v1/ais/vessels/:mmsi/port-calls'

# 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://aisfleet.com/api/x402/v1/ais/vessels/:mmsi/port-calls' \
  | 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 $0.02 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.02" });
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 $0.02 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Faisfleet.com%2Fapi%2Fx402%2Fv1%2Fais%2Fvessels%2F%3Ammsi%2Fport-calls
const res = await pay("https://aisfleet.com/api/x402/v1/ais/vessels/:mmsi/port-calls");
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 $0.02 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.02"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://aisfleet.com/api/x402/v1/ais/vessels/:mmsi/port-calls")
    print(res.status_code, res.text)