American Express AMEX Account Connect
AMEX Account Connect is a suite of APIs that enables eligible American Express Card Members to add their Cards on file with participating partners, using their American Express login credentials, instead of manually entering the Card information. Two journeys are available: a User can begin from AMEX channels, or from the partner's channel, to link their eligible American Express Card without needing the physical Card on hand. This reduces friction, cart abandonment, and card-entry errors while improving the security of stored credentials.