Aviation Airport

{
  "airports": [
    {
      "continent": "AS",
      "country": "PH",
      "elevation_ft": 75,
      "elevation_m": 23,
      "frequencies": [
        {
          "description": "MANILA ATIS",
          "mhz": 126.4,
          "type": "ATIS"
        },
        {
          "description": "MANILA TWR",
          "mhz": 118.1,
          "type": "TWR"
        }
      ],
      "gps_code": "RPLL",
      "iata": "MNL",
      "icao": "RPLL",
      "ident": "RPLL",
      "lat": 14.5086,
      "local_code": null,
      "lon": 121.019997,
      "municipality": "Manila (Pasay)",
      "name": "Ninoy Aquino International Airport",
      "region": "PH-00",
      "runways": [
        {
          "closed": false,
          "ends": [
            "06",
            "24"
          ],
          "heading_deg_true": [
            60.3,
            240.3
          ],
          "length_ft": 12261,
          "lighted": true,
          "surface": "CON",
          "width_ft": 197
        },
        {
          "closed": false,
          "ends": [
            "13",
            "31"
          ],
          "heading_deg_true": [
            134.8,
            314.8
          ],
          "length_ft": 7408,
          "lighted": true,
          "surface": "CON",
          "width_ft": 148
        }
      ],
      "scheduled_service": true,
      "type": "large_airport",
      "wikipedia": "https://en.wikipedia.org/wiki/Ninoy_Aquino_International_Airport"
    }
  ],
  "count": 1,
  "disclaimer": "Informational only. Not for operational use or flight planning.",
  "source": {
    "license": "Public Domain",
    "name": "OurAirports",
    "notice": "Data may contain errors; no accuracy guarantee.",
    "terms": "https://ourairports.com/data/",
    "url": "https://ourairports.com/data/"
  }
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://tanod.dev/v1/aviation/airport' \
  -H 'content-type: application/json' \
  --data-raw '{"code":"RPLL"}'

# 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 - -X POST 'https://tanod.dev/v1/aviation/airport' \
  -H 'content-type: application/json' \
  --data-raw '{"code":"RPLL"}' \
  | 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 $0.001 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.001" });
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 $0.001 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Ftanod.dev%2Fv1%2Faviation%2Fairport&method=POST
const res = await pay("https://tanod.dev/v1/aviation/airport", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "code": "RPLL"
  }),
});
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 $0.001 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.001"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://tanod.dev/v1/aviation/airport",
        json={
            "code": "RPLL",
        },
    )
    print(res.status_code, res.text)