Show HN: Era – Open-source local sandbox for AI agents
3 comments
·November 27, 2025sschueller
I am a bit confused how I would use this (maybe because I may not be your target audience?).
For example if I am coding with Kilocode and phpstorm. How would I use these microVms and what is the cloudflare worker for? I currently run a regular set of docker containers to run my code, how does this compare?
0123456789ABCDE
can you include a component diagram overview to give folks a quick idea of "what runs where?" before making the decision to try this out.
you wrote that this is local but what's up with the cloudflare subdir? do we need a cf account to run this?
blutoot
I hate to speak negatively about someone's hard work but I am genuinely confused as to why this needs to be a separate product/service. Could I not spin up a container or a VM and run my agents in it? What is this sandbox letting the agent do safely that neither the current container or VM solutions are able to offer?
Just watched this video by ThePrimeagen (https://www.youtube.com/watch?v=efwDZw7l2Nk) about attackers jailbreaking Claude to run cyber attacks. The core issue: AI agents need isolation.
We built ERA to fix this – local microVM-based sandboxing for AI-generated code with hardware-level security. Think containers, but safer. Such attacks wouldn't touch your host if running in ERA.
GitHub: https://github.com/BinSquare/ERA
Quick start: https://github.com/BinSquare/ERA/tree/main/era-agent/tutoria...
Would love your thoughts and feedback!