Apache ActiveMQ Artemis is also a pure AMQP 1.0 broker, with a high performant and feature complete protocol manager for AMQP.
You can use any AMQP 1.0 compatible clients.
A short list includes:
... and many others.
The broker will not perform any message conversion to any other protocols when sending AMQP and receiving AMQP.
However if you intend your message to be received on a AMQP JMS Client, you must follow the JMS Mapping convention:
If you send a body type that is not recognized by this specification the conversion between AMQP and any other protocol will make it a Binary Message.
So, make sure you follow these conventions if you intend to cross protocols or languages. Especially on the message body.
We have a few examples as part of the Artemis distribution:
Java (Using the qpid JMS Client)