Update README.md

Author: Sagleft

README.md

@@ -30,6 +30,7 @@ Here is a library of open-source code for the Utopia Ecosystem platform from the
 * [utopia-dynamic-group-cover](https://github.com/Sagleft/utopia-dynamic-group-cover) - dynamic cover for a group on VKontakte social network with Utopia Network statistics.
 * [utopia-auth](https://github.com/Sagleft/utopia-auth) - Example of user authorization on your web service in Utopia Network.
 * [diano-bot](https://github.com/Sagleft/diano-bot) - Bot for transporting content between messengers.
+* [crypton-open-api](https://github.com/Sagleft/crypton-open-api) - Crypton open API from exchanges & U Network.
 
 ## JS / NodeJS / etc
 * [utopia-webapp](https://github.com/Sagleft/utopia-webapp) - An example of a lightweight HTML5 application using the Utopia RESTful API.