ARI. Channel details, mute status, snoop details

Hello,

are there any way (except storing this data in database or channel variables) to get channel mute status (muted or no, in/out direction)? And also how to get snoop channel status, in/out direction and other?

No, not currently. Noone has added such functionality.

not currently? do you mean it is in plans?

I know of noone actively working on such a thing, but Asterisk is an open source project so someone may contribute such functionality in the future.