The Amazon Braket Simulator V2 is a Python open source library that provides an implementation of a quantum simulator for state vectors and density matrices that you can run locally.
Here you'll find an overview and API documentation for Amazon Braket Default Simulator Python. The project homepage is in GitHub, https://github.com/amazon-braket/amazon-braket-simulator-v2-python, where you can find the source and installation instructions for the library.