Praise for the first edition

Stop scouring the internet for information, it's in this book! A great resource for all skill levels on designing a Web API.

Answers nagging and complicated questions with a simple philosophy, and never tries to hide anything from you. A fantastic introduction to the field.

A strong, structured, and well documented resource the community lacked.

A journey from novice to professional for developing Web APIs that are robust, friendly, and easy to consume.

A must-read for API programmers and architects.

Finally, a systematic approach to API design.