Oso
Authorization building framework
Oso is an open-source authorization engine that enables developers to implement fine-grained access control for their applications and services. It is designed to be easy to use and integrate into existing applications and is built on top of a policy-as-code approach. With Oso, developers can define policies that describe the rules for accessing specific resources and actions within their application. These policies can be written in a familiar programming language, such as Python or JavaScript, and are easy to understand and maintain. The policies can then be used to enforce access control at runtime, ensuring that only authorized users can access the resources they need. Oso supports a wide range of authorization scenarios, including role-based access control, attribute-based access control, and more complex scenarios that involve context-specific decisions. It can be integrated into a variety of web frameworks and languages, including Python, Node.js, Ruby, and Go. Oso also includes an interactive shell that allows developers to test policies and see the results in real-time. This makes it easy to debug and refine policies as the application evolves. Oso is used by developers and organizations to secure their applications and services, ensuring that only authorized users can access sensitive data and functionality. It is actively developed and maintained by a team of experienced engineers and has a growing community of contributors and users.