I have the following code, using Keras Scikit-Learn Wrapper, which work fine:
from keras.models import Sequential from keras.layers import Dense from sklearn
You can add an input_dim keyword argument to the KerasClassifier constructor:
input_dim
KerasClassifier
model = KerasClassifier(build_fn=create_model, input_dim=5, nb_epoch=150, batch_size=10, verbose=0)