| BaseChannelReader | Base PEAR Channel reader. |
| ChannelInfo | PEAR channel info |
| ChannelReader | PEAR Channel package reader. |
| ChannelRest10Reader | Read PEAR packages using REST 1.0 interface |
| ChannelRest11Reader | Read PEAR packages using REST 1.1 interface |
| DependencyConstraint | PEAR package release dependency info |
| DependencyInfo | PEAR package release dependency info |
| PackageDependencyParser | Read PEAR packages using REST 1.0 interface |
| PackageInfo | PEAR Package info |
| ReleaseInfo | PEAR package release info |