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Accept Atome payments from customers in Singapore with Adyen as the payment service provider (PSP). The customer selects Atome, approves the payment plan in Atome, and returns to your site.

Supported workflows

Before you begin

Complete these steps before you send your first Atome payment through Adyen:
  1. Set up an Adyen integration in your workspace. Follow the Adyen integration setup guide if you don’t have one yet.
  2. Ask Adyen to enable Atome on your Adyen merchant account. For testing, ask Adyen for an Atome test shopper account.
  3. Configure Adyen webhook notifications for your integration.
  4. In the Payrails Portal, go to Settings → Integrations, open your Adyen integration, select Atome under Payment methods, and save.
  5. Add Atome as a payment option in your workflow.

Request fields for Adyen

Send these fields in the authorize request, in addition to the standard authorize fields. Required fields must be present for the payment to succeed. Payrails sends Optional fields to the PSP when you include them.

Authorize an Atome payment

Call authorize a payment with atome as the paymentMethodCode. The response includes the redirect to Atome.
Authorize request
After the customer approves the payment, Atome returns them to your success or error URL. Confirm the result through webhook notifications or the execution status before you fulfill the order.

How Adyen handles Atome

  • Payrails checks the customer, address and order fields before it calls Adyen, and names the missing field in the error.
  • Payrails reads the phone number from the order’s billing or delivery address, and sends it to Adyen with the dialing code and no +.
  • Adyen captures Atome payments automatically. When Adyen confirms the authorization, Payrails also records the capture, so the payment completes in one step.
  • Atome through Adyen supports customer-initiated payments only. Payrails rejects an MIT before it calls Adyen.
Last modified on October 15, 2026