I have been working on my proposed project called Tensorflex as part of Google Summer of Code 2018.. Tensorflex can be used for making predictions from input data on pre-trained Tensorflow models. Training as of now is only supported in the Python API (also C++ at a low-level) but Tensorflex fully supports Inference and can be used for making predictions. Moreover, Tensorflex is being worked on and improved everyday so if there are any particular features anyone has in mind, please feel free to get in touch with me!
As an introduction to using Tensorflex for making predictions from saved models, I have written a blog post: http://www.anshumanc.ml/gsoc/2018/06/14/gsoc/
To follow development, make sure to watch the Github repository here: https://github.com/anshuman23/tensorflex