Add a payment method (credit card, bank account/ACH, Apple Pay, Google Pay, or third party token) to the authenticated environment's vault.

To create a test payment method, use one of the test card numbers. For more information see the Spreedly testing guide.

Third party tokens are payment methods stored in the Spreedly vault, that are a reference to another payment method stored at the gateway's vault. For more information see the third party token guide.