We are excited to announce that as an application or service owner, you can now develop connectors that allow your app to work with Microsoft Flow, Logic Apps and PowerApps. This enables your customers to easily automate their business processes and create their own no-code line of business apps.
An API connector is an Open API (Swagger) based wrapper around a REST API that allows the underlying service to talk to Microsoft Flow, PowerApps, and Logic Apps., PowerApps. It provides a way for users to connect their accounts and leverage a set of pre-built triggers and actions to build their apps and workflows.
Read about it on the Azure blog.