Integrate your own checkout with our API and allow your customers to make payments with in3.

How does it work?

1. Customer opens your webshop, adds some items to the shopping basket, and clicks on 'Proceed to Checkout'.
2. Customer lands on your own checkout, and selects iDEAL in3.
3. After creating an in3 transaction using the create in3 transaction endpoint, you redirect the customer to the provided URL.
4. The customer completes the first instalment payment, you receive a webhook (if you configured it for your in3 transaction), and the customer is redirected to the Return URL(s) you specified on your in3 transaction.
5. You make a request to the get in3 transaction endpoint, and use its latest details to update your system.

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When using webhooks, be aware that they are only a "best effort" mechanism. Find more details here.