> ## Documentation Index
> Fetch the complete documentation index at: https://docs.slm.m1amdocs.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Adding Additional Payment Methods

* **[Enable Subscribers to Purchase a Subscription Using a PayPal Express Checkout Account](../topics/2203_r_purchaseSubscriptionPayPal#)**\
  You can enable your subscribers to purchase a subscription using PayPal Express Checkout for payment. To enable this functionality, you must use the Subscribe APIs.
* **[Enable Subscribers to Purchase a Subscription Using Apple Pay](../topics/2213_r_enableSubscribersPurchaseSubscriptionApplePay)**\
  You can enable subscribers to purchase a Subscription from your online storefront using Apple Pay. To enable this functionality, you must use the Subscribe APIs.
* **[Enable Subscribers to Purchase a Subscription Using Amazon Pay](../topics/2214_r_enableSubscribersPurchaseSubscriptionAmazonPay)**\
  You can enable subscribers to purchase a Subscription from your online storefront using Amazon Pay. To enable this functionality, you must use the Subscribe APIs.
* **[Enable Subscribers to Purchase a Subscription Using Google Pay](../topics/2215_r_enableSubscribersPurchaseSubscriptionGooglePay)**\
  You can enable subscribers to purchase a Subscription from your online storefront using Google Pay. To enable this functionality, you must use the Subscribe APIs.


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