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2025-10-30
Announcing Oolong: Lightweight TEA Implementation
We’re excited to introduce Oolong - a lightweight, MIT-licensed implementation of Transparency Exchange API (TEA) designed for simplicity and portability.
Oolong is available on GitHub: https://github.com/relizaio/oolong
Why Oolong
- Lightweight by design
- No database required
- Git-friendly content model
Oolong serves TEA content directly from a set of YAML files, exposed via the TEA API. It also implements TEA discovery, including .well-known endpoint. This makes it ideal for simple setups, demos, CI pipelines, and GitOps-style workflows.
How It Works
- Content as YAML. You define your TEA data in YAML.
- Served via TEA API. Oolong reads YAML and returns it through standard TEA endpoints.
- Discovery. Oolong implements TEA discovery, including .well-known endpoint.
- Straightforward operations. No external stateful dependencies are required.
Run It Your Way
- Single container
- Docker Compose
- Helm chart
- Optional: Gitpod sidecar that periodically syncs content from a public Git repository
Manage Content with ReARM CLI
We added helpful commands to ReARM CLI for both Oolong content operations and TEA API interactions:
- Oolong commands: https://github.com/relizaio/rearm-cli/blob/main/docs/oolong.md
- TEA operations: https://github.com/relizaio/rearm-cli/blob/main/docs/tea.md
- Install ReARM CLI: https://github.com/relizaio/rearm-cli
If you try Oolong, we’d love your feedback and contributions!