> ## Documentation Index > Fetch the complete documentation index at: https://docs.mona.ng/llms.txt > Use this file to discover all available pages before exploring further. # Checkout > 1-Tap checkout solution for web and app.
Mona One Tap allows your customers to make payment within your website or app with just a single tap. We do all the heavy lifting in the background. Your customers' bank accounts and cards will show up natively within your UI and they can complete payment without any additional UI or complex redirect flows, uplifting your conversion dramatically. Customers can pay with biometrics using their saved payment methods, while traditional payment methods like card and manual transfer are also supported. The integration is straightforward - just drop in the SDK for your corresponding web or mobile platform without complex setup requirements.
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## How It Works The checkout process follows these key steps: 1. **Create Transaction**: Use the [create checkout session](/api-reference/checkout/create) endpoint to generate a transaction ID and payment URL 2. **Initialize SDK**: Set up the Mona SDK in your app with your merchant key 3. **Launch Checkout**: Pass the transaction ID to the SDK to start the payment flow 4. **Handle Response**: Listen for transaction status updates and handle success/failure states ## Platform Integration ### Installation ```javascript Web theme={null}