Welcome to the Hiero SDK Collaboration Hub – your centralized resource for contributing to the SDKs in the Hiero organization.
This repository serves as a collaborative space for design proposals, contribution guidelines, templates, and other helpful documentation to support Hiero SDK contributors.
The Hiero SDK Collaboration Hub exists to:
- 🧠 Share Hiero SDK design proposals
- 📘 Provide guidelines and best practices for contributing to Hiero SDKs
- ✍️ Offer onboarding resources for new contributors
- 🧰 Collect templates
- 🧪 Playground for future SDK features
| Folder / File | Description |
|---|---|
proposals/ |
Active and archived Hiero SDK design proposals |
guides/ |
Contribution guides, best practices, and onboarding docs |
templates/ |
Reusable templates for proposals, issues, and PRs |
v3-sandbox/ |
Firsts drafts for a possible V3 of the Hiero SDKs |
README.md |
You're here! Overview of the repo's purpose and structure |
This repo is not:
- A Hiero SDK codebase
- A replacement for official Hiero SDK documentation
- A place for implementation-specific issues
Instead, it is a support system for Hiero SDK contributors, meant to lower the barrier to entry, encourage high-quality contributions, and promote alignment across Hiero SDK implementations.
This project is maintained by the Hiero organization. For questions or support, open an issue or reach out to a maintainer.
The Hiero SDK Community Call is a recurring open meeting for developers, maintainers, and contributors working on the Hiero SDKs. It’s the main live forum to:
- Share what you’re working on (new features, language bindings, performance work, identity/VC flows, etc.)
- Raise questions and discuss technical issues or design proposals
- Align across SDK stacks (Java, JavaScript/TS, Go, Rust, Python, etc.) on cross-cutting topics
- Help shape a stronger, more collaborative SDK ecosystem
- Stay informed about what other teams are building, avoid duplicate work, and spot collaboration opportunities
- Get early feedback on your ideas and influence design decisions and roadmap priorities
- Connect directly with maintainers and the broader community in a relaxed, discussion-friendly setting
- Catch up later via archived recordings if you can’t attend live
- The call runs on a regular cadence (currently every Monday) and is listed on the project’s community calendar.
- To register, use the SDK meeting series registration link on the LFX Calendar page: LFX Calendar – SDK Community Call.
- For the latest call times, past recordings, and calendar invites, see the public Hiero project calendar: Hiero Project Meeting Calendar.
- For past meeting minutes, see the
hiero-ledger/governancerepository wiki: Hiero Meeting Minutes- Find the "SDK Community Call" heading on the right side panel to see links to the most recent minutes and the
...to find older minutes.
- Find the "SDK Community Call" heading on the right side panel to see links to the most recent minutes and the
To get started as a contributor:
- Start with the Contribution Guide to understand how to get involved.
- Browse open proposals to see ongoing discussions.
- Use our templates to write your own design doc or submit an issue.
- Join the conversation! We welcome feedback and collaboration from contributors of all levels.
Contribute ideas. Collaborate on designs. Let's build better SDKs — together. ✨
Hiero uses the Linux Foundation Decentralised Trust Code of Conduct.