Turn any Linux serverinto a sandbox platform for AI agents.
Ephemeral sandboxes for AI agents, running on your own infrastructure.
Spin up. Run. Destroy.
Sandboxes are ephemeral by design. Alrith boots one in under 1 second, keeps it until it goes idle or reaches a fixed lifetime such as 50 minutes, then destroys it when the work is done.
One microVM per sandbox.
Every sandbox runs in its own Firecracker microVM. The runtime core is written in Rust, so agents can run code and experiment safely: isolated from the host server and from each other.
Linux servers, ready to host sandboxes
Three rules. No exceptions.
- Ephemeral.
Sandboxes are meant to end. Keep one until it goes idle, or give it a fixed lifetime, then let Alrith destroy it.
- Isolated.
Every sandbox runs in its own Firecracker microVM, so agents can run code and experiment without touching the host server or each other.
- Yours.
Open source and self-hosted. Alrith turns the Linux servers you already run into a sandbox platform for agents.
Many servers. One runtime.Sandboxes placed dynamically.
Connect multiple VPS or servers and Alrith dynamically decides where each sandbox is created. Create sandboxes through an API endpoint or from the CLI, and let AI agents spin up their own through the Sandbox MCP server.
Questions.
What is Alrith?
Alrith is an open-source, self-hosted sandbox runtime for AI agents. It turns any Linux server into an ephemeral compute platform where agents safely spin up isolated microVMs, run code, experiment, and destroy them when finished.
How is each sandbox isolated?
Every sandbox runs in its own Firecracker microVM, isolated from the host server and from other sandboxes. The runtime core is built in Rust, and each microVM boots in under 1 second.
How are sandboxes created, used, and destroyed?
Sandboxes are ephemeral by design: Alrith boots one in under 1 second, keeps it until it goes idle or reaches a fixed lifetime, then destroys it when the work is done.
How do agents connect to Alrith?
Create sandboxes from an API endpoint or the CLI, and let AI agents spin up their own through the Sandbox MCP server.
Can I use my own servers?
Yes. Connect multiple VPS or servers and Alrith dynamically decides where each sandbox is created, so placement follows your fleet instead of a fixed host.
Is Alrith available today?
Alrith is coming soon, with an ETA of 2027.