Welcome,
Believe it or not, this will get worse before it will get better. He is on a downward spiral.
Enabling him is not the answer. Let him beg for money, but, don't give it to him. Hide or lock up anything of value that he can pawn or trade for drugs...this includes hiding your car keys, before he trades it, or lets a pusher use it to make a drug run.
He must fall to his knees before he can stand back up, he must want recovery more than anything else in the world. There is nothing you can do to "save" him, it is totally up to him.
Help yourself, go to meetings, read everything you can about addiction, knowledge is power, and most important protect yourself, crack is a nasty, nasty drug anything can happen.
Keep posting, we are here for you.