Token-based authentication is a security mechanism that enhances user security and experience by using tokens instead of passwords to validate identity. Tokens, which can be either physical devices or digital files, act as substitutes for traditional credentials, offering a more secure and user-friendly method of access control. This system is particularly effective in environments requiring strong authentication, such as corporate settings or transactions involving sensitive data. Token-based authentication supports scalable and efficient security management, integrating easily with multi-factor authentication (MFA) and federated authentication systems, and is widely used for Single Sign-On (SSO), API security, and device authentication. Despite its advantages, such as improved security, password elimination, and better user experience, there are risks like token theft that necessitate robust protective measures. To simplify implementation, solutions like Descope offer a drag-and-drop interface for integrating token-based authentication into existing infrastructures.