OAuth 2.0 is an authorization framework that allows users to grant third-party applications access to their resources without sharing their credentials. In the context of decentralized applications and crypto wallets, this means a user can allow an app to interact with their wallet or data securely.Instead of directly providing private keys or passwords, OAuth 2.0 uses tokens that represent the user’s permission. This reduces the risk of exposing sensitive information and enhances security. The process typically involves an authorization server that authenticates users and issues access tokens to third-party apps.Once authorized, the app can perform actions like checking transaction histories or executing trades on behalf of the user, all while keeping the user’s private keys safe. This is particularly useful for applications needing access to blockchain data without compromising user security. Overall, OAuth 2.0 helps facilitate seamless and secure interactions between users and applications in the crypto space, streamlining processes and enhancing user experience.