Create a checkout session

Create a checkout session for an invoice or product.

Related endpoints

• GET /checkout-sessions/{id} — Retrieve a checkout session
• POST /checkout-sessions/{id}/expire — Expire a checkout session

Common errors

• 400 invalid_request — malformed payload or failed validation.
• 401 unauthenticated — missing, malformed, or revoked API key.
• 404 resource_missing — the referenced resource does not exist or is not visible to your key.

Idempotency

Pass an Idempotency-Key header (UUID v4 recommended) to make retries safe. Keys are valid for 24 hours; see the idempotency guide.

curl -X POST "https://api.revkeen.com/v2/checkout-sessions" \
  -H "x-api-key: $REVKEEN_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "invoiceId": "inv_123",
    "productId": "prod_123",
    "amountMinor": 1000,
    "currency": "USD",
    "successUrl": "https://example.com/success",
    "cancelUrl": "https://example.com/cancel",
    "allowedMethods": [
      "card",
      "direct_debit"
    ],
    "companionDeviceId": "00000000-0000-0000-0000-000000000000"
  }'

{
  "data": {
    "id": "string",
    "url": "string",
    "public_token": "string",
    "amount_minor": 0,
    "currency": "string",
    "customer_id": "string",
    "expires_at": "string",
    "allowed_methods": [
      "card",
      "direct_debit"
    ],
    "selected_method": null
  },
  "requestId": "string"
}

{
  "error": "string"
}

{
  "error": "string"
}

{
  "error": "string"
}