https://github.com/tetratelabs/built-on-envoy

A community-driven marketplace for Envoy Proxy extensions. Discover, run, and build custom filters with zero friction.
https://github.com/tetratelabs/built-on-envoy

envoy envoy-filter envoyproxy extensions plugins

Last synced: 3 months ago
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A community-driven marketplace for Envoy Proxy extensions. Discover, run, and build custom filters with zero friction.

• Host: GitHub
• URL: https://github.com/tetratelabs/built-on-envoy
• Owner: tetratelabs
• License: apache-2.0
• Created: 2026-01-19T16:46:57.000Z (5 months ago)
• Default Branch: main
• Last Pushed: 2026-03-26T22:21:12.000Z (3 months ago)
• Last Synced: 2026-03-27T03:40:50.732Z (3 months ago)
• Topics: envoy, envoy-filter, envoyproxy, extensions, plugins
• Language: Go
• Homepage: https://builtonenvoy.io
• Size: 15 MB
• Stars: 16
• Watchers: 0
• Forks: 3
• Open Issues: 14
• Metadata Files:
  • Readme: README.md
  • Contributing: CONTRIBUTING.md
  • License: LICENSE
  • Codeowners: CODEOWNERS

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[![CLI](https://github.com/tetratelabs/built-on-envoy/actions/workflows/cli.yaml/badge.svg)](https://github.com/tetratelabs/built-on-envoy/actions/workflows/cli.yaml)

[![CLI Coverage](https://img.shields.io/codecov/c/github/tetratelabs/built-on-envoy?token=v4u6VpZSqZ&logo=codecov&logoColor=lightgray&flag=cli&label=CLI)](https://codecov.io/gh/tetratelabs/built-on-envoy)

[![Extensions](https://github.com/tetratelabs/built-on-envoy/actions/workflows/extensions.yaml/badge.svg)](https://github.com/tetratelabs/built-on-envoy/actions/workflows/extensions.yaml)

[![Extensions Coverage](https://img.shields.io/codecov/c/github/tetratelabs/built-on-envoy?token=v4u6VpZSqZ&logo=codecov&logoColor=lightgray&flag=extensions&label=Extensions)](https://codecov.io/gh/tetratelabs/built-on-envoy)

[![License](https://img.shields.io/badge/License-Apache%202.0-red)](LICENSE)

[![Slack](https://img.shields.io/badge/Slack-Tetrate%20Community-purple)](https://join.slack.com/t/tetrate-community/shared_invite/zt-3rvq88b6s-siA~G2zGSF~sVoxwnl_krw)

A community-driven marketplace for Envoy Proxy extensions. Discover, run, and build custom filters with zero friction.

## Project Overview

**Built On Envoy** is designed to make extending [Envoy Proxy](https://www.envoyproxy.io/) as simple as possible. It consists of:

1. **Marketplace Repository**: A central place where the community can find and contribute extensions.

2. **CLI Tool (`boe`)**: A command-line tool for discovering, running, and building extensions.

## Documentation

* [Installation and Quick Start](https://builtonenvoy.io/docs/getting-started/)

* [Extension Catalog](https://builtonenvoy.io/extensions/)

* [CLI Reference](https://builtonenvoy.io/docs/cli/run)

* [Security Considerations](https://builtonenvoy.io/docs/security-considerations)

## Get In Touch

* Share your feedback and ideas in [issues](https://github.com/tetratelabs/built-on-envoy/issues) or [discussions](https://github.com/tetratelabs/built-on-envoy/discussions).

* Join the [Tetrate Community Slack](https://join.slack.com/t/tetrate-community/shared_invite/zt-3rvq88b6s-siA~G2zGSF~sVoxwnl_krw) if you're not already a member.

Otherwise, use the [#built-on-envoy](https://tetrate-community.slack.com/archives/C0AG8GLT41E) channel to start collaborating with the community.

## Contributing Extensions

1. Fork this repository.

2. Create a new directory under `extensions/` with your extension name.

3. Add a `manifest.yaml` file with the required metadata.

4. Add your extension code.

5. Add tests.

6. Open a pull request!

See the [Contributing Guidelines](./CONTRIBUTING.md) and the [Project Documentation](https://builtonenvoy.io/docs) for more details.

## License

Apache 2.0 - See [LICENSE](LICENSE) for details.