This project is a binary stable library which contains a subset of the UsdUfe & MayaUsd library calls. It is intended to be used by other Maya plugins which require access to MayaUsd features in a binary stable way.
Linking with only the MayaUsdAPI library will ensure that your Maya plugin will not be broken by any changes in UsdUfe or MayaUsd. Both those libraries are at major version zero which means anything may change at any time.