PayPal
PayPal - Payment Method Tokens v1
PayPal Payment Method Tokens API to securely tokenize and store payment methods for recurring billing and one‑click checkout.
Description
The Payment Method Tokens API saves payment methods so payers don't have to enter details for future transactions. Payers can check out faster or pay without being present after they agree to save a payment method.
The API associates a payment method with a temporary setup token. Pass the setup token to the API to exchange the setup token for a permanent token.
The permanent token represents a payment method that's saved to the vault. This token can be used repeatedly for checkout or recurring transactions such as subscriptions.