How can i get a demo version of Telligent Community ?

Hello  - There is a Free Edition available which has some limitations but would support working with APIs. The Free Edition is available here. If you already have a full licensed version of the platform, it is possible to get a local license for development purposes. Submit a Support Case and the team there should be able to help. 

Actually, i'm already submit an demo request as your instructions, but no one reply 

Actually, i'm already submit an demo request as your instructions, but no one reply 

I have checked with folks here, and it appears that the reply to your original request may have been sent only to one of your coworkers. I have been copied on a reply sent today to your business email address. Cheers! 

thanks, i have received it already