The Oslo messaging API supports RPC and notifications over a number of different messaging transports.

• License: Apache License, Version 2.0
• Documentation: https://docs.openstack.org/oslo.messaging/latest/
• Source: https://opendev.org/openstack/oslo.messaging
• Bugs: https://bugs.launchpad.net/oslo.messaging
• Release notes: https://docs.openstack.org/releasenotes/oslo.messaging/