GraphQL - GraphQL is a data query language and runtime to request and deliver data to mobile and web apps.
Asana - Asana project management is an effort to re-imagine how we work together, through modern productivity software. Fast and versatile, Asana helps individuals and groups get more done.
JsonAPI - Application and Data, Languages & Frameworks, and Query Languages
Teamgantt - Intuitive project planning and collaboration. Beautiful Gantt charts, task-level communication, file sharing, resource management and more.
Django REST framework - Django REST framework is a toolkit for building web APIs.
Basecamp - A simple and elegant project management system.