It's open source (Apache 2.0) and has a free tier that needs no key or account. We also published an open benchmark methodology — currently on nRF hardware, with ESP coming next — because we wanted the value measurable, not just asserted.
Prereqs are just a working ESP-IDF install. Would genuinely value feedback from this forum on where it falls short on real ESP projects.
Repo: https://github.com/adsumnetworks/Adsum-IoT-Coder
Doc: https://docs.adsumnetworks.com/introduction
