Qubit is a decentralized protocol that facilitates unrestricted access to genuine quantum computing infrastructure. It empowers users to run circuits on active quantum processing units (QPUs), utilize native quantum randomness, and experiment with quantum-secure features directly on the blockchain. The platform aims to connect advanced quantum technology with the growing Web3 environment, allowing developers, researchers, and everyday users to interact with real quantum computing through an intuitive blockchain interface. Qubit's mission is to democratize access to quantum resources, paving the way for innovative decentralized applications that incorporate quantum functionalities. Operating entirely on-chain, Qubit utilizes smart contracts to manage access, verification, and the execution of quantum computing tasks. Users can easily submit quantum circuits through the Qubit interface, direct them to live QPUs, and obtain results, all while ensuring transparency and verifiability on the blockchain. In addition to computational capabilities, Qubit provides tools aimed at enhancing quantum security, including quantum-secure key generation and post-quantum cryptographic solutions. These features are essential for helping users and protocols safeguard their systems against potential threats posed by quantum computing to traditional encryption methods.