Checkout API

Programmatically get a hosted checkout URL to redirect buyers.

Create checkout session

POST /api/checkout — returns a redirect_url. No API key required.

Request body

JSON

{
  "productId": "your-product-uuid",
  "success_url": "https://yoursite.com/thank-you",
  "cancel_url": "https://yoursite.com/cancelled",
  "email": "[email protected]"
}

Only productId is required. Do not pass payment method fields — the buyer chooses on checkout.

Response

200 OK

{
  "redirect_url": "https://flintpay.cc/checkout/your-product-uuid?success_url=..."
}

Example

cURL

curl -X POST https://flintpay.cc/api/checkout \
  -H "Content-Type: application/json" \
  -d '{
    "productId": "your-product-uuid",
    "success_url": "https://yoursite.com/success",
    "cancel_url": "https://yoursite.com/cancel",
    "email": "[email protected]"
  }'

Hosted checkout

Webhooks