We are excited to continually provide you new API endpoints that surface our core functionality outside of our UI, allowing for full flexibility of how you bill your customers. Our latest API endpoint is creating ad-hoc invoices for one-off services or products, separate from your recurring charges. With these one-off invoices you can directly feed in everything that will be charged including the price, description and item being sold and you can set these invoices to be paid either by remittance or automatic payment collections.  They can have multiple line items, a custom memo, and all other basic attributes you get when you create the one-time invoice in the UI.

For more information on how to create a one-off invoice via the API, see our documentation here>