DiscoverVulcain | Server Push Web APIs



  • proprietary software can implement the Mercure specification
  • proprietary publishers and subscribers can be used with the Hub without having to share their sources
  • modifications made to the Hub must be shared
  • alternatively, <a href="">commercial licenses are available for the Hub</a>

The specification is available under the IETF copyright policy. The Mercure specification can be implemented by any software, including proprietary software.

The Hub is licensed under AGPL-3.0. This license implies that if you modify the Hub, you must share those modifications. However, the AGPL-3.0 license applies only to the hub server itself, not to software using this hub.

For companies not wanting, or not able to use AGPL-3.0 licensed software, commercial licenses are also available. Contact us for more information.