AI Agents
OpenSandbox
A secure, fast sandbox runtime where AI agents can execute safely.
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View guide →// agents · firecracker-microvm/firecracker
firecracker
firecracker is an open-source ai agents project by firecracker-microvm (firecracker-microvm/firecracker on GitHub). It has 37,223 GitHub stars and 2,661 forks, is released under the Apache-2.0 license, and was last updated on GitHub on 7 October 2026.
Secure, fast microVMs that make serverless possible.
★ 37.2k stars⑂ 2.7k forksApache-2.0updated 2026-10
▦ visual — this project's README ships no embeddable screenshot,
so here's a placeholder. The guide below is complete regardless.
so here's a placeholder. The guide below is complete regardless.
// project facts
Project facts
- Repository
- firecracker-microvm/firecracker
- GitHub stars
- 37,223
- Forks
- 2,661
- License
- Apache-2.0
- Last updated on GitHub
- 7 October 2026
- Category
- AI Agents
- Listing
- Full install guide
- Official site
- Official site
// how it works
How it works
- Know your goal
Be clear about the problem you are solving before installing.
- Get the code
Clone the repository and skim the docs for hardware or key requirements.
- Configure it
Install dependencies, then add API keys, endpoints, or local-model settings.
- Take it for a spin
Launch the example flow and verify the output matches expectations.
// features
Why people love it
MicroVM isolation
Hardware-virtualized isolation per workload.
Container-like speed
Starts fast and packs densely.
Multi-tenant safe
Built for running untrusted code securely.
Minimalist design
Small codebase with a focused scope.
Rust implementation
Memory-safe systems code.
Apache-2.0
Permissive licensing.
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// run it
Run it yourself
- Step 1 — Clone the repo
Download the source and move into the project folder.
git clone https://github.com/firecracker-microvm/firecracker.git cd firecracker - Step 2 — Build
Compile with Cargo on a KVM-capable Linux host.
cargo build --release - Step 3 — Boot a microVM
Follow the getting-started guide to launch your first microVM.
# requires /dev/kvm — see docs ./target/release/firecracker --help
// use cases
What you can build
- Run untrusted agent-generated code in isolated microVMs.
- Build a serverless functions platform.
- Sandbox multi-tenant AI workloads.
- Study production-grade virtualization written in Rust.
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// faq
Questions, answered
Who maintains Firecracker?
It is maintained by the firecracker-microvm organization (originally from AWS) at firecracker-microvm/firecracker, with 2,661 forks.
Is Firecracker free to use?
Yes. It is released under the Apache-2.0 license, which permits commercial use, modification, and redistribution. Read the LICENSE file for the exact terms.
Do I need a paid API to use it?
No — it is infrastructure software. You provide the host machines; it needs Linux with KVM.
How does it compare to containers or gVisor?
Compare on isolation strength versus overhead: microVMs sit between containers and full VMs.
How do I get started?
You need a Linux host with KVM access; follow the official getting-started guide to boot your first microVM.
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Get firecracker
Free and open — grab the source, star the repo, and start creating.