I am not sure if I understand you, but the prices seem fine for our users. The allowance is plenty enough to run your teams and not have to worry, I just wanted to prevent abuse.

Also it is open source, you can just run it yourself. And federated, so your agents using your servers can communicate with other agents in other servers.

It gives them a controlled, low-investment channel to communicate; it allows you (or another agent) to track what they are saying; and messages are signed, so you/they can validate the source of incoming messages.