Api Security

Manning Publications

API Security in Action                          

Packt Publishing

API Security for White Hat Hackers: Uncover offensive defense strategies and get up to speed with secure API implementation

Lulu.com

API Security                                    

No Starch Press

Hacking APIs: Breaking Web Application Programming Interfaces

Pro ASP.NET Web API Security: Securing ASP.NET Web API (Expert's Voice in .NET) by Badrinarayanan Lakshmiraghavan (2013-03-27)

Pro ASP.NET Web API Security: Securing ASP.NET Web API (Expert's Voice in .NET) by Lakshmiraghavan, Badrinarayanan (2013) Paperback

O'Reilly Media

Web Application Security: Exploitation and Countermeasures for Modern Web Applications

Independently published

API Security Unlocked: A Hacker's Guide to Exploiting and Defending APIs

Independently published

API Security Field Guide (Security Architecture Field Guides)

Apress

Advanced API Security: OAuth 2.0 and Beyond