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@@ -186,6 +186,7 @@ the Design of Network-based Software Architectures](https://www.ics.uci.edu/~fie
 * [Public APIS](https://www.publicapis.com/) - Explore The Largest API Directory In The Galaxy.
 * [Marvel Comics API](http://developer.marvel.com/) - Query characters, stories, events about Marvel superheroes.
 * [JSON Placeholder](http://jsonplaceholder.typicode.com/) - Free online REST service that you can use whenever you need some fake data.
+* [APIs.guru](http://APIs.guru) - Wikipedia for Web APIs, each API has OpenAPI/Swagger description.
 
 ## Documentation