Rally provides a platform and services for agile application development, focusing on supporting developers through Application Lifecycle Management. Rally works to facilitate agile development by a platform that helps teams achieve visibility and collaboration over short delivery cycles.
Rally provides a web service API which enables developers to integrate their internal systems with the Rally platform. Their API is available through both REST and SOAP, and can return data as XML, JSON, or HTML. The API is only available with Rally's paid monthly subscription plans, though a community edition offers basic features of their platform without API access.