# user agents User agents in RAC is the way how to get know from what client the message was sent. It works by just checking the message text throught regex. ## clients Here are listed the most common clients, and their name colors in the chat. | Client | Format | Regex | Color | | :----: | :----: | :----: | :----: | | [bRAC](https://github.com/MeexReay/bRAC) | 리㹰<{name}> {text} | `\uB9AC\u3E70<(.*?)> (.*)` | green | [CRAB](https://gitea.bedohswe.eu.org/pixtaded/crab) | ═══<{name}> {text} | `\u2550\u2550\u2550<(.*?)> (.*)` | light red | [Mefidroniy](https://github.com/OctoBanon-Main/mefedroniy-client) | °ʘ<{name}> {text} | `\u00B0\u0298<(.*?)> (.*)` | light magenta | [cRACk](https://github.com/pansangg/cRACk) | ⁂<{name}> {text} | `\u2042<(.*?)> (.*)` | gold | clRAC | <{name}> {text} | `<(.*?)> (.*)` | cyan ## developer notes in auth-mode, there is must to be `> ` after name (`{name}> {text}`)