Checkbook provides a way for businesses to send payments online at scale. It provides all possible rails for payment disbursements, including but not limited to ACH, RTP, FedNow, Digital Checks, Paper Checks, Push to Card, Virtual Cards, Zelle, Venmo, PayPal, and Wires. It offers a good funds model as well as the ability to pull funds from existing corporate accounts. All this is available through a single (smart) API call without requiring the recipient/payee to sign up or provide bank information before receiving the payment. All this is available in a complete white-labeled functionality. Additionally, Checkbook offers PayFac functionality.