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How to register your own Mollie OAuth app

Register an OAuth app with Mollie and connect it to Tenklo

This guide shows you how to register your own app with Mollie to obtain your OAuth credentials (client ID and client secret). These are required to let your users grant your app access to their Mollie account.

To create and register your OAuth application, follow the steps below:

Create a Mollie account

  1. Go to Mollie and sign up for an account if you don't already have one.
  2. Log in to your Mollie Dashboard.

Register your OAuth app

  1. At the bottom left of the screen, click Developers > Your apps.
  2. Click Create Application.
  3. Fill in all your app details. For Redirect URI, add: https://api.tenklo.dev/oauth/callback
  4. Click Save to create your OAuth app.

Get your credentials

  1. Your application will now show up under the Your apps tab.
  2. Copy your Client ID (starts with app_) and Client Secret.
  3. Save both values securely. You'll need these when configuring the integration in Tenklo.

For more details, see Mollie OAuth Documentation.