The mechanism of interaction between two systems through the WEB API, how to do it right?

Question

API

Good afternoon!
There are two applications written in ASP.NET MVC, now they need to exchange API data (for example, application 1 has an ASP.NET WEB API created, and application 2 accesses this API).
Tell me, please, how to make authorization to this API in such an interaction?

Answer 1

https://jwt.io/
https://stackoverflow.com/questions/40281050/jwt-a...