| AboutCommand | Base class for Composer commands |
| ArchiveCommand | Creates an archive of a package for distribution. |
| BaseCommand | Base class for Composer commands |
| BaseDependencyCommand | Base implementation for commands mapping dependency relationships. |
| CheckPlatformReqsCommand | Base class for Composer commands |
| ClearCacheCommand | Base class for Composer commands |
| ConfigCommand | Base class for Composer commands |
| CreateProjectCommand | Install a package as new project into new directory. |
| DependsCommand | Base implementation for commands mapping dependency relationships. |
| DiagnoseCommand | Base class for Composer commands |
| DumpAutoloadCommand | Base class for Composer commands |
| ExecCommand | Base class for Composer commands |
| GlobalCommand | Base class for Composer commands |
| HomeCommand | Base class for Composer commands |
| InitCommand | Base class for Composer commands |
| InstallCommand | Base class for Composer commands |
| LicensesCommand | Base class for Composer commands |
| OutdatedCommand | Base class for Composer commands |
| ProhibitsCommand | Base implementation for commands mapping dependency relationships. |
| RemoveCommand | Base class for Composer commands |
| RequireCommand | Base class for Composer commands |
| RunScriptCommand | Base class for Composer commands |
| ScriptAliasCommand | Base class for Composer commands |
| SearchCommand | Base class for Composer commands |
| SelfUpdateCommand | Base class for Composer commands |
| ShowCommand | Base class for Composer commands |
| StatusCommand | Base class for Composer commands |
| SuggestsCommand | Base class for Composer commands |
| UpdateCommand | Base class for Composer commands |
| ValidateCommand | ValidateCommand |