Postman - The Collaboration Platform for API Development
Atomic - The fastest way to design beautiful interactions
DreamFactory - DreamFactory is an API management platform used to generate, secure, document, and extend APIs.
Lean Service Creation - Open source design process and toolkit
AWS CloudTrail - AWS CloudTrail is a web service that records AWS API calls for your account and delivers log files to you.
FeaturePeek - Collaborate on in-progress website implementations. FeaturePeek allows your team to collect feedback on your front-end during the implementation phase of development.