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FissionPlane is a self-hosted compute platform for running untrusted code securely. Deploy it on your Kubernetes cluster with a single Helm chart, then create isolated Linux sandboxes for AI agents, code interpreters, CI jobs, and serverless functions — all running in Firecracker microVMs on hardware you operate.

Quickstart

Create your first sandbox and run a command in minutes.

Installation

Deploy FissionPlane on your Kubernetes cluster with Helm.

TypeScript SDK

Manage sandboxes from Node.js applications.

API Reference

Explore the full control plane and data plane APIs.

What FissionPlane does

FissionPlane gives every workload its own Firecracker microVM with a dedicated kernel, filesystem, and network namespace. You control exactly how long it runs, what ports it exposes, and whether its state is preserved.

Sandboxes

Stateful, interactive Linux environments you create, pause, and delete on demand.

Templates

Immutable pre-booted artifacts built from any OCI image. The starting point for every sandbox.

Functions

Deploy versioned functions that start from warm snapshots and scale to zero between invocations.

Security model

Hardware isolation, capability tokens, and a data path that stays alive through control-plane outages.

Get up and running

1

Deploy FissionPlane on Kubernetes

Install the Helm chart on any Kubernetes cluster — EKS, GKE, AKS, k3s, or bare metal. See Installation for cluster requirements and Helm values.
2

Install an SDK

Pick TypeScript, Python, or Rust. All three SDKs share the same OpenAPI contract.
3

Configure your client

Point the SDK at your control plane and supply an API key.
4

Create your first sandbox

Spin up an isolated microVM and run a command inside it.

Why self-hosted?

Hosted sandbox platforms run your code on their infrastructure. FissionPlane gives you the same fast microVM sandboxes, snapshots, and SDKs — but every byte stays on hardware you operate. There is no metered billing, no data leaves your network, and air-gapped installs work.