Herald API

The Herald API provides proximity detection and data exchange between mobile phones, wearables, beacons and other devices. This can be used for a variety of applications.

Read about Herald

OpenTrace is a Digital Contact Tracing and Exposure Notification whitelabled end-to-end system, powered by Herald, that supports Public Health Authorities in responding to disease.

Read about OpenTrace

Blog Highlights

Version 2.2.0 Released
Introducing the Herald Bluetooth MESH API
Bluetooth RSSI proximity self calibration enhancements
Singapore's GovTech donates OpenTrace to Linux Foundation Public Health's Herald Project
Why Digital Contact Tracing is still needed
Why Digital Contact Tracing is still needed
We’re now over a year since the first national lockdowns due to SARS-CoV-2 (COVID-19). In this post we look to the continued need for Digital Contact Tracing (DCT), and where the technology is going next.
Version 2.0.0 released


All Herald works are Copyright 2020-2023 Herald Project Contributors

The code for Herald is Apache-2.0 licensed. Our hardware designs are licensed under the CERN Open Hardware License - Permissive - V2. The documentation for Herald, including this website, is available under the Creative Commons Attribution 4.0 International Public License.

See LICENSE.txt and NOTICE.txt for details.

The Herald Project Team

Herald Project is released as open source software and provides community support through our GitHub project page. If you encounter an issue or have a question, feel free to reach out on the GitHub issues page for Herald Project.

The Herald project team welcomes contributions from the community — please see our contributing documentation.

Getting Started

To help you get started, see the documentation.