Using Keras how and what do I need to export to use my classifier independently?
In keras you have the option to save the entire model state including the optimizer parameters or simply the model weights. In the first case all you need to do is:

model.save(model_path)  
model = load_model(model_path)  


In the second case you have to first create your model and then load the weights:

model.save_weights(model_weight_path)  


In case model is not already specified:

model = Sequential()  
model.add()  
...  

model.load_weights(model_weight_path)


https://keras.io/getting-started/faq/#how-can-i-save-a-keras-model