Now you've validated all of your assumptions for both your problem and your solution and you've tested some prototypes to make sure that you can build what your user wants. If it's time to see what early adopters have to say then you're ready for a Minimum Viable Product (MVP).
An MVP can come in lots of shapes and sizes but its purpose is not to be a perfect final product, it is intended to test your venture hypothesis. It must solve the problem, even at the most basic level, in order to be effective. Different MVPs test differently and are based on the insights you've gleaned from previous iterations. There are several MVPs included here and they each serve their own best purpose, choose the best fit to test your specific hypothesis.