The following list is a summary of AR-Cluster commands. The upper case part of the commands is required and the lower case part of the command is optional. Thus the command A/F is the same as the Announce/Full command.
| Announce | Announcement to all locally users |
| Announce/Full | Announcement to all users |
| Bye | Terminate the connection to the cluster |
| CLEAR/QSL | Remove a QSL route from the local QSL database |
| CONFErence | Enter a local conference |
| CONFErence/Full | Enter a network wide conference |
| DB | Built in database information |
| DEelete | Delete a mail message |
| DIrectroy | List mail messages |
| Dx | Enter as DX spot |
| Help | Command for help |
| List | List mail messages |
| Quit | Terminate the connection to the cluster |
| Read | Read a mail message |
| REPly | Reply to a mail message |
| Send | Send a mail message |
| SEt/ANNouncements | Turn on announcements |
| SEt/BEep | Turn on a beep for DX and Announcement spots |
| SEt/DX_Announcements | Activate DX spots |
| SEt/DXSqth | Turn on the display of the spotter QTH |
| SEt/EMAIL | Set your Internet email address |
| SEt/FILTER | Set the spot filters |
| SEt/HEre | Let others know you are at your station |
| SEt/HOMenode | Set your home node |
| SEt/LOCAtion | Set the location (lat/lon) of your station |
| SEt/LOGIN_announcements | Show user logins |
| SEt/Name | Set your name |
| SEt/NOAnnouncements | Turn off announcements |
| SEt/NOBeep | Turn off the beep for DX and Announcements |
| SEt/NODX_Announcements | Turn off DX announcements |
| SEt/NODXSqth | Turn off the display of the spotter QTH |
| SEt/NOHere | Indicate you are away from your station |
| SEt/NOLOGin_announcements | Turn off login announcements |
| SEt/NOTalk | Turn off the display of talk messages |
| SEt/NOWWV_announcements | Turn off the display of WWV spots |
| SEt/NOWX_announcements | Turn off the display of weather announcements |
| Set/PHONE | Set your phone number |
| Set/QRA | Set the QRA for your station |
| Set/QSL | Add a QSL route to the local database |
| SEt/QTH | Set your location (city, etc) |
| SEt/TAlk | Turn on the display of talk messages |
| SEt/WWV_announcements | Turn on the display of WWV spots |
| SEt/WX_announcements | Turn on the display of weather announcements |
| SHow/ANnounce | Show previous announcements |
| SHow/ARCHive | Show the files in the archive folder |
| SHow/BUCmaster | Show callbook information for a specified callsign |
| SHow/BULLEtins | Show the files in the bulletins folder |
| SHow/CBA | Show callbook information for a specified callsign |
| SHow/CLuster | Show the configuration of the cluster |
| SHow/Configuration | Show the users on the node |
| SHow/Dx | Show previous DX spots |
| SHow/Dx SQL | Query for past DX using SQL |
| SHow/EMAIL | Show a users Internet email address |
| SHow/FDx | Display a formatted SH/DX command |
| SHow/FILEs | Show the files in the files folder |
| SHow/FILTER | Shows the current DX spot filters |
| SHow/FITu | Display a formatted SH/ITU |
| #Formatted">SHow/FZOne | Display a formatted SH/ZONE |
| SHow/Grid | Show the MaidenHead grid locator for a station |
| SHow/HAM | Show callbook information for a specified callsign |
| SHow/Heading | Show the heading and distance to a station |
| SHow/HOMEnode | Show a users homenode |
| SHow/ITu | Show past DX based on a ITU zone |
| SHow/LOCation | Show the location (lat/lon) of a station |
| SHow/LOG | Show the node logins for a call |
| SHow/Muf | Show the MUF for a country |
| SHow/NEeds | Show the CTY needs for a station |
| SHow/NOdes | Displays a list of nodes in the network |
| SHow/Prefix | Show the prefix information for a call |
| Show/QRA | Show the station QRA |
| SHow/Qsl | Show QSL information for a call |
| SHow/STation | Show detail information for a call |
| SHow/Sun | Show the sunrise/sunset for a location |
| SHow/TAlk | Show past talk messages |
| SHow/TIme | Show the time |
| SHow/TIP | Show a tip about using the cluster |
| Show/UPTime | Shows the uptime for the node |
| SHow/Users | Show the users connected to the node |
| SHow/Version | Shows the AR-Cluster software version |
| SHow/WWv | Shows past WWV information |
| SHow/WX | Show past weather announcements |
| SHow/WXStation | Show data from an optional weather station |
| SHow/Zone | Show past DX based on a CQ zone |
| Talk | Talk to a station |
| Talk/Timestamp | Talk to a station with a timestamp |
| Type/ARChive | Display a file in the archive folder |
| Type/BULletins | Display a file in the bulletin folder |
| Type/FILes | Display a file in the files folder |
| Wwv | Send a WWV spot to the cluster |
| WX | Make a local weather announcement |
| WX/Full | Make a weather announcement to the network |