Is there a free trial version of this I can use?
how come I did not get any credits when I verified my account?
how come I did not get any credits when I verified my account?
When I checked your account, I think the trial credits are already set. 
mudfish trial use
@frijul
I'd set a trial credit now for your account. :-) So I think you can use all mudfish nodes and features for a while. Please let me know if there's any problems and questions.