Chargify supports Braintree, a prominent US gateway solution.
We support Braintree's older "Orange" API/platform, which they no longer use for new accounts. Existing Chargify customers using Braintree Orange will continue to be supported indefinitely.
Support for Braintree's newer "Blue" platform has also been added.
If you have any additional questions or need clarification on platforms, please e-mail Braintree at firstname.lastname@example.org