Accepting Card Payments with Adyen

What Is Adyen?

Adyen is a global payment platform used by some of the largest brands in the world. Shoppers enter their card on a secure, on-page form — no redirect — and 3D Secure is handled automatically. Card details are collected by Adyen's PCI-compliant component and never touch your store.

Installing Adyen

1. Go to the App Store and install Adyen
2. Open Admin → Settings → Payments → Adyen

Getting Your Credentials

1. Log in to your Adyen Customer Area
2. Copy your API key, Client key, and Merchant account
3. In the Client key's settings, add every domain your storefront runs on to the allowed origins — the on-page payment form will not load from a domain that is not on this list

Setting Up the Webhook

1. In Cartly, open Settings → Payments → Adyen and copy the webhook URL shown there
2. In the Adyen Customer Area, register a Standard webhook at that URL
3. Generate an HMAC key for the webhook and copy it

Connecting in Cartly

1. Paste your API key, Client key, Merchant account, and the webhook HMAC key into Settings → Payments → Adyen
2. Click Test connection
3. Save

Once connected, Adyen appears as a card payment option at checkout.