Traffic Autobahn

{
  "items": [
    {
      "blocked": false,
      "description": [
        "Die Baustelle ist zu folgenden Zeiträumen gültig:",
        "20.10.26 von 08:00 bis 16:00 Uhr",
        "A1: Saarbrücken -> Trier, zwischen 2.8 km hinter Kreisel-Ludwigsberg und 0.7 km vor AS Riegelsberg",
        "Länge: 3.79 km | Max. 80 km/h | Maximale Durchfahrtsbreite: 3.25 m"
      ],
      "extent": "49.259482414655466,6.958114584558286,49.29088960125274,6.956748490783844",
      "future": true,
      "lat": 49.259482414655466,
      "lon": 6.958114584558286,
      "start": null,
      "subtitle": " Saarbrücken -> Trier",
      "title": "A1 | Kreisel-Ludwigsberg - Riegelsberg"
    },
    {
      "blocked": false,
      "description": [
        "Die Baustelle ist zu folgenden Zeiträumen gültig:",
        "20.10.26 von 12:00 bis 17:00 Uhr",
        "A1: Saarbrücken -> Trier, zwischen 0.7 km hinter AS Saarbrücken-Neuhaus und 0.3 km vor Neuhaus",
        "Länge: 2 km | Max. 80 km/h | Maximale Durchfahrtsbreite: 3.25 m"
      ],
      "extent": "49.291776898007896,6.9574328142573165,49.307869704005455,6.9685448870763125",
      "future": true,
      "lat": 49.291776898007896,
      "lon": 6.9574328142573165,
      "start": null,
      "subtitle": " Saarbrücken -> Trier",
      "title": "A1 | Saarbrücken-Neuhaus - Neuhaus"
    },
    {
      "blocked": false,
      "description": [
        "Die Baustelle ist zu folgenden Zeiträumen gültig:",
        "20.10.26 von 12:00 bis 17:00 Uhr",
        "A1: Saarbrücken -> Trier, zwischen 0.7 km hinter AS Saarbrücken-Neuhaus und 0.3 km vor Neuhaus",
        "Länge: 2 km | Max. 80 km/h | Maximale Durchfahrtsbreite: 3.75 m"
      ],
      "extent": "49.291776898007896,6.9574328142573165,49.307869704005455,6.9685448870763125",
      "future": true,
      "lat": 49.291776898007896,
      "lon": 6.9574328142573165,
      "start": null,
      "subtitle": " Saarbrücken -> Trier",
      "title": "A1 | Saarbrücken-Neuhaus - Neuhaus"
    },
    {
      "blocked": false,
      "description": [
        "Die Baustelle ist zu folgenden Zeiträumen gültig:",
        "20.10.26 von 08:00 bis 16:00 Uhr",
        "A1: Trier -> Saarbrücken, zwischen 0.7 km hinter AS Riegelsberg und 0.1 km vor AS Saarbrücken-Hubert-Müller-Straße",
        "Länge: 3.79 km | Maximale Durchfahrtsbreite: 3.25 m"
      ],
      "extent": "49.29092303370478,6.956628717213512,49.25945452188143,6.958024142655621",
      "future": true,
      "lat": 49.29092303370478,
      "lon": 6.956628717213512,
      "start": null,
      "subtitle": " Trier -> Saarbrücken",
      "title": "A1 | Riegelsberg - Saarbrücken-Hubert-Müller-Straße"
    },
    {
      "blocked": false,
      "description": [
        "Die Baustelle ist zu folgenden Zeiträumen gültig:",
        "19.10.26 von 14:00 bis 17:00 Uhr",
        "A1: Trier -> Saarbrücken, zwischen 0.3 km hinter Neuhaus und 0.7 km vor AS Saarbrücken-Neuhaus",
        "Länge: 2.01 km | Max. 80 km/h | Maximale Durchfahrtsbreite: 3.25 m"
      ],
      "extent": "49.30789950666683,6.96840756645779,49.29179351041264,6.957297779212849",
      "future": true,
      "lat": 49.30789950666683,
      "lon": 6.96840756645779,
      "start": null,
      "subtitle": " Trier -> Saarbrücken",
      "title": "A1 | Neuhaus - Saarbrücken-Neuhaus"
    }
  ],
  "kind": "roadworks",
  "returned": 5,
  "road": "A1",
  "source": "Autobahn GmbH des Bundes Verkehrs API (Datenlizenz Deutschland)",
  "total_active": 262
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://saylorinnovations.com/api/traffic/autobahn?kind=roadworks&limit=5&road=A1'

# 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://saylorinnovations.com/api/traffic/autobahn?kind=roadworks&limit=5&road=A1' \
  | 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 $0.01 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.01" });
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 $0.01 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fsaylorinnovations.com%2Fapi%2Ftraffic%2Fautobahn
const res = await pay("https://saylorinnovations.com/api/traffic/autobahn?kind=roadworks&limit=5&road=A1");
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 $0.01 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.01"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://saylorinnovations.com/api/traffic/autobahn?kind=roadworks&limit=5&road=A1")
    print(res.status_code, res.text)