Security researcher David Sopas has published MindAPI, a mind map with resources for API security research. It links to guidelines, open-source tools and documentation that can help developers, security researchers, pentesters and even bug bounty hunters. The project also lists and links to a variety of resources ‘ talks, educational videos, how-to guides, interesting write-ups, intentionally vulnerable apps, and more. It’s divided into two sections: Reconnaissance and Testing (which follows OWASP API Security Top 10 guidelines and other security guides)
Source: https://www.helpnetsecurity.com/2021/04/06/mindapi-api-security-research/

