At this stage the Circle Payments API supports:

Accepting payments using debit and credit cards (Visa and Mastercard only) across 150+ countries.
Accepting payments using bank wire transfers from 80+ countries.
Sending payouts using bank wire transfers to 80+ countries.

Supported Payment Methods

Payment Method	Type of Flow	Sandbox Support	Production Support
Debit & credit cards	Payments	:white-check-mark:	:white-check-mark:
Bank accounts via ACH	Payments	:white-check-mark:	:white-check-mark:
Bank accounts via ACH	Payouts	:white-check-mark:	:white-check-mark:
Bank accounts via wire transfers	Payments	:white-check-mark:	:white-check-mark:
Bank accounts via wire transfers	Payouts	:white-check-mark:	:white-check-mark:

Create an account on our sandbox environment and stay tuned for updates on supported payment methods.