Bearer
Monitoring Platform for API-driven apps
10 Alternatives To Bearer
Apigee
Intelligent and complete API platform
GitLab
Create, review and deploy code together with GitLab open source git repo management software | GitLab
Kanban Tool
Simple and effective online application for visual project management.
PagerDuty
Cloud based monitoring service
Phabricator
Phacility - Phabricator
Qt Creator
Qt Creator is a cross-platform C++, JavaScript and QML integrated development environment. It is the fastest, easiest and most fun experience a C++ developer could wish for.
Redmine
Redmine is a flexible project management web application. Written using the Ruby on Rails framework, it is cross-platform and cross-database. Redmine is open source and released under the terms of the GNU General Public License v2 (GPL).
Runscope
Log, monitor and measure your API usage to solve API problems fast.
Sauce Labs
Test mobile or web apps instantly across 700+ browser/OS/device platform combinations - without infrastructure setup.
WSO2 API Manager
WSO2 API Manager is a 100% open source enterprise-class solution that supports API publishing, lifecycle management, application development, access control, rate limiting and analytics in one cleanly integrated system.