curl -X POST https://api.neuraldraft.io/v1/checkout-sessions \
  -H "Authorization: Bearer ndsk_live_yourkey" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: $(uuidgen)" \
  -d '{"items":[{"product_id":32,"quantity":1}],"customer":{"name":"Anna","email":"anna@example.com"},"success_url":"https://lakesideyoga.uk/success","cancel_url":"https://lakesideyoga.uk/cart"}'

const session = await nd.checkout.create({
  items: [{ productId: 32, quantity: 1 }],
  customer: { name: "Anna", email: "anna@example.com" },
  successUrl: "https://lakesideyoga.uk/success",
  cancelUrl: "https://lakesideyoga.uk/cart",
});
window.location = session.checkout_url;

r = requests.post("https://api.neuraldraft.io/v1/checkout-sessions",
  headers={"Authorization": f"Bearer {key}"},
  json={"items":[{"product_id":32,"quantity":1}],"customer":{"name":"Anna","email":"anna@example.com"},"success_url":"https://lakesideyoga.uk/success","cancel_url":"https://lakesideyoga.uk/cart"})

<?php
$session = json_decode((string) $client->post('checkout-sessions', [
  'headers' => ['Authorization' => 'Bearer '.$key],
  'json' => ['items'=>[['product_id'=>32,'quantity'=>1]],'customer'=>['name'=>'Anna','email'=>'anna@example.com'],'success_url'=>'https://lakesideyoga.uk/success','cancel_url'=>'https://lakesideyoga.uk/cart'],
])->getBody(), true);

{
  "order_id": 902,
  "stripe_session_id": "cs_live_a1b2c3d4",
  "checkout_url": "https://checkout.stripe.com/c/pay/cs_live_a1b2c3d4",
  "expires_at": "2026-04-19T11:14:02Z"
}

{
  "type": "https://api.neuraldraft.io/errors/bad_request",
  "title": "Bad request",
  "status": 400,
  "detail": "Request body could not be parsed.",
  "code": "bad_request",
  "instance": "req_2Nh4PqRsTuVw"
}

{
  "type": "https://api.neuraldraft.io/errors/connect_not_ready",
  "title": "Stripe Connect not ready",
  "status": 402,
  "detail": "This project's Stripe Connect account is not yet onboarded.",
  "code": "connect_not_ready"
}

{
  "type": "https://api.neuraldraft.io/errors/validation_failed",
  "title": "Validation failed",
  "status": 422,
  "detail": "One or more fields failed validation.",
  "code": "validation_failed",
  "instance": "req_2Nh4PqRsTuVw",
  "errors": {
    "customer_email": [
      "The customer email field must be a valid email address."
    ],
    "starts_at": [
      "The starts at field must be a date after now."
    ]
  }
}

{
  "type": "https://api.neuraldraft.io/errors/rate_limited",
  "title": "Too many requests",
  "status": 429,
  "detail": "Rate limit exceeded. Retry in 12 seconds.",
  "code": "rate_limited",
  "instance": "req_2Nh4PqRsTuVw"
}