How do I embed payment fields directly in my checkout page?

To embed payment fields directly in your checkout page, you generally use a payment provider’s hosted components / embedded fields instead of building card handling yourself.

Typical approach

1. Choose a PSP
   Examples: Stripe, Adyen, Braintree, Square, Checkout.com, etc.

2. Use their secure UI components

   • Card number field
   • Expiry date
   • CVC
   • Billing details These are usually rendered in iframes or via a JS SDK, so sensitive card data never touches your server directly.

3. Create a payment session/server intent

   • Your backend creates a payment object (e.g., PaymentIntent, order, session).
   • Return a client token/secret to the frontend.

4. Mount the payment element in your checkout

   • The provider’s script injects the fields into a div on your page.
   • You style it to match your checkout.

5. Submit payment securely

   • The component tokenizes/payment details.
   • Your backend confirms/charges the payment using the provider’s API.

Example concept (Stripe-style)

Front end:

<div id="payment-element"></div>
<button id="pay">Pay</button>
<script src="https://js.stripe.com/v3/"></script>

Backend:

• Create a PaymentIntent
• Send client_secret to the browser

Frontend JS:

const stripe = Stripe("pk_test_...");
const elements = stripe.elements({ clientSecret });

const paymentElement = elements.create("payment");
paymentElement.mount("#payment-element");

Important security notes

• Don’t collect raw card data in plain HTML inputs unless you’re fully PCI-compliant.
• Use provider-hosted/embedded fields to reduce compliance scope.
• Serve checkout over HTTPS.
• Verify payments on the server, not only in the browser.

If you want full control

You can build custom-looking fields, but they should still be backed by:

• tokenization
• iframe-based secure fields
• provider JS SDK

If you tell me which payment provider you’re using, I can give you exact embed code and setup steps.