Richards, a full-back, who can also play in midfield, will take shirt number 3, recently vacated by David Wright, and will be available for the club's next game against Huddersfield on Wednesday 30th January.
Upon joining, Richards told Palace Player: "Swansea were happy to let me go out on loan and when I spoke to the gaffer here...it was a great opportunity for me. It's a brilliant club to be coming into, sitting in the top six of the Championship. As a player you want to be fighting for a place in the Premier League and hopefully I can play my part in the club getting there."
You can watch the whole of Jazz's first interview as a Palace player online now.
The club have also handed a professional contract to defence Alistair Gordon. That deal will come into effect from 1st July 2013.