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@cedar-policy

cedar-policy

README.md

README.md

Cedar Green Logo

Welcome!

Cedar is an open source policy language and evaluation engine. Cedar enables developers to express fine-grained permissions as easy-to-understand policies enforced in their applications, and decouple access control from application logic. Cedar supports common authorization models such as role-based access control and attribute-based access control. It is the first policy language built from the ground up to be verified formally by using automated reasoning, and tested rigorously using differential random testing.

Project Resources

Repositories

  • cedar
    Cedar SDK including the authorization engine, validator, policy formatter, and CLI
  • cedar-docs
    Houses documentation for all cedar projects
  • cedar-examples
    Example applications using the Cedar language and SDK
  • cedar-spec
    Formal Lean specification for the Cedar language as well as the differential testing/property-based testing framework
  • cedar-local-agent
    Configurable cache for Cedar policies and entities
  • cedar-go
    Cedar Go implementation
  • cedar-java
    Java language bindings for Cedar
  • cedar-awesome
    Curated list of awesome Cedar related tools and articles.
  • rfcs
    Request For Comments (RFC) for Cedar
  • vscode-cedar
    Cedar policy language extension for Visual Studio Code
  • cedar-integration-tests
    Cedar integration tests
  • highlightjs-cedar
    highlight.js support for Cedar policy language
  • prism-cedar
    Prism support for Cedar policy language

Code of Conduct

This project follows the CNCF Code of Conduct. For more information see the Code of Conduct FAQ, or contact [email protected] with any additional questions or comments.

Security

If you discover a potential security issue in this project we ask that you notify AWS/Amazon Security via our vulnerability reporting page or directly via email to [email protected]. Please do not create a public GitHub issue.

License

This project is licensed under the Apache v2.0 License.

Copyright

See NOTICE for details.

Trademark

Cedar is a trademark of Amazon Web Services. If publishing software using Cedar, you are not required to attribute. However, if you’d like to, we encourage you to use the language below.

Do: Don't:
✅ Powered by Cedar ❌ Cedar 2.0
✅ Created with Cedar ❌ Created by Cedar
✅ Using Cedar ❌ Software created by Cedar

Popular repositories Loading

  1. cedar cedar Public

    Implementation of the Cedar Policy Language

    Rust 1.2k 110

  2. cedar-go cedar-go Public

    Golang implementation of the Cedar Policy Language

    Go 160 19

  3. cedar-spec cedar-spec Public

    Definitional implementation of Cedar language and utilities for DRT

    Lean 140 31

  4. cedar-access-control-for-k8s cedar-access-control-for-k8s Public

    Cedar for Kubernetes brings the power of Cedar to Kubernetes authorization and admission validation, showing how cluster administrators can enable a unified access control language for principals m…

    Go 138 10

  5. cedar-examples cedar-examples Public

    Some examples of using the Cedar language to specify authorization

    Rust 103 32

  6. cedar-awesome cedar-awesome Public

    A curated list of awesome Cedar related tools and articles.

    71 12

Repositories

Showing 10 of 18 repositories
  • cedar-access-control-for-k8s Public

    Cedar for Kubernetes brings the power of Cedar to Kubernetes authorization and admission validation, showing how cluster administrators can enable a unified access control language for principals making API calls and giving policy authors a single language to write and reason about

    cedar-policy/cedar-access-control-for-k8s’s past year of commit activity
    Go 138 Apache-2.0 10 29 5 Updated Nov 20, 2025
  • cedar-authorization Public
    cedar-policy/cedar-authorization’s past year of commit activity
    TypeScript 7 Apache-2.0 2 1 7 Updated Nov 20, 2025
  • authorization-for-expressjs Public
    cedar-policy/authorization-for-expressjs’s past year of commit activity
    TypeScript 13 Apache-2.0 2 0 10 Updated Nov 20, 2025
  • cedar Public

    Implementation of the Cedar Policy Language

    cedar-policy/cedar’s past year of commit activity
    Rust 1,197 Apache-2.0 110 144 11 Updated Nov 19, 2025
  • cedar-spec Public

    Definitional implementation of Cedar language and utilities for DRT

    cedar-policy/cedar-spec’s past year of commit activity
    Lean 140 Apache-2.0 31 35 5 Updated Nov 19, 2025
  • cedar-for-agents Public
    cedar-policy/cedar-for-agents’s past year of commit activity
    Rust 5 Apache-2.0 3 3 1 Updated Nov 19, 2025
  • cedar-examples Public

    Some examples of using the Cedar language to specify authorization

    cedar-policy/cedar-examples’s past year of commit activity
    Rust 103 Apache-2.0 32 6 11 Updated Nov 18, 2025
  • cedar-docs Public

    Documentation for Cedar policy language

    cedar-policy/cedar-docs’s past year of commit activity
    33 Apache-2.0 31 14 2 Updated Nov 17, 2025
  • cedar-integration-tests Public
    cedar-policy/cedar-integration-tests’s past year of commit activity
    Python 7 Apache-2.0 4 0 0 Updated Nov 17, 2025
  • vscode-cedar Public

    Cedar policy language extension for Visual Studio Code

    cedar-policy/vscode-cedar’s past year of commit activity
    TypeScript 25 Apache-2.0 5 5 0 Updated Nov 14, 2025
View all repositories

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