EspoCRM
EspoCRM is a customer relationship management program with a frontend designed as a single-page application and a REST API. It is for people and organizations that need CRM software, especially teams that want both an application interface for users and a REST interface for software connections. The frontend uses a single application page rather than a traditional sequence of separate pages, while the API provides programmatic access through REST. These two interfaces support different ways of working with the CRM: direct use in the frontend and software communication through the API. A practical limitation is the single-page frontend itself. Organizations that require a traditional multi-page interface will not get that design from EspoCRM. The REST API remains separate from the visual frontend and handles REST-based communication for software.