Clarification Needed on Dust Pricing and API Usage Quotas

Hi everyone, Apologies if this question has already been asked. I'm having a bit of trouble understanding the different pricing options offered by Dust, especially around fair use. We're currently using the tool mainly internally, but I’d like to make one of our agents publicly available via the API. This seems to be technically possible since my tests are working perfectly, but I haven’t been able to find any clear information about applicable quotas or specific plans related to heavy API usage. Thanks in advance for your help!