curl -X POST https://api.v2.dealmachine.com/v1/checkout \
  -H "Authorization: Bearer dm_sk_live_xxx" \
  -H "Content-Type: application/json" \
  -d '{
    "price_id": "price_xxx_monthly",
    "quantity": 1
  }'

const response = await fetch('https://api.v2.dealmachine.com/v1/checkout', {
  method: 'POST',
  headers: {
    Authorization: `Bearer ${apiKey}`,
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({
    price_id: 'price_xxx_monthly',
    quantity: 1,
  }),
});

const checkout = await response.json();
console.log(checkout.checkout_url);

import requests

response = requests.post(
    'https://api.v2.dealmachine.com/v1/checkout',
    headers={'Authorization': f'Bearer {api_key}'},
    json={
        'price_id': 'price_xxx_monthly',
        'quantity': 1
    }
)

checkout = response.json()
print(checkout['checkout_url'])

{
  "checkout_url": "https://checkout.stripe.com/c/pay/cs_test_123",
  "session_id": "cs_test_123",
  "expires_at": "2026-06-17T19:00:00.000Z"
}

{
  "error": {
    "code": "invalid_price_id",
    "message": "Invalid or unavailable price ID",
    "request_id": "req_abc123"
  }
}