The Staking Deposit CLI is an open-source tool designed to generate EIP-2335 compliant BLS12-381 keystores and corresponding deposit_data.json files for the Ethereum Staking Launchpad. Compatible with Linux, MacOS, and Windows, users can install this tool using a standalone binary executable, native Python, virtualenv, or Docker image, tailored for flexibility in diverse environments. Key functionalities include creating initial keys from new or existing mnemonics and facilitating advanced operations like bls-to-execution-change. The CLI supports multiple global languages, enhancing accessibility, while ensuring robust security with strict file permissions and usage warnings for offline environments. Ideal for developers and validators alike, this project aids in the preparation of validator keys, streamlining the staking process through a combination of guided and non-interactive modes. Comprehensive Python 3.8+ support and a detailed audit by Trail of Bits underscore its reliability in the evolving web3 landscape.