Vehicles Vin

{
  "base_price_usd": null,
  "body_class": "Coupe",
  "check_digit_valid": true,
  "decode_status": "0 - VIN decoded clean. Check Digit (9th position) is correct",
  "doors": 2,
  "drivetrain": {
    "drive_type": null,
    "speeds": 5,
    "transmission": "Automatic"
  },
  "engine": {
    "configuration": "V-Shaped",
    "cylinders": 6,
    "displacement_l": 3,
    "electrification": null,
    "fuel": "Gasoline",
    "horsepower": 240,
    "model": "J30A4"
  },
  "gvwr_class": "Class 1C: 4,001 - 5,000 lb (1,814 - 2,268 kg)",
  "make": "HONDA",
  "manufacturer": "AMERICAN HONDA MOTOR CO., INC.",
  "model": "Accord",
  "plant": {
    "city": "MARYSVILLE",
    "country": "UNITED STATES (USA)",
    "state": "OHIO"
  },
  "safety": {
    "airbags_curtain": "1st and 2nd Rows",
    "airbags_front": "1st Row (Driver and Passenger)",
    "airbags_side": "1st Row (Driver and Passenger)",
    "features": {},
    "seat_belts": "Manual"
  },
  "series": null,
  "source": "NHTSA vPIC",
  "trim": "EX-V6",
  "vehicle_type": "PASSENGER CAR",
  "vin": "1HGCM82633A004352",
  "year": 2003
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://saylorinnovations.com/api/vehicles/vin/:vin'

# 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/vehicles/vin/:vin' \
  | 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%2Fvehicles%2Fvin%2F%3Avin
const res = await pay("https://saylorinnovations.com/api/vehicles/vin/:vin");
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/vehicles/vin/:vin")
    print(res.status_code, res.text)