coop is a Rust CLI that manages disposable, isolated virtual machines for running AI coding agents like Claude Code and Codex.
It provides a secure, reproducible environment with full tool access—including Docker, git, and compilers—without exposing the host machine to potential risks from autonomous agent execution.
- 01
Hardware-isolated VMs using Firecracker (Linux) or Lima (macOS)
- 02
API key forwarding or host-side proxy mode to keep credentials off the guest
- 03
Workspace sync with local project directories
- 04
Customizable guest environments via profiles and named images
- 05
Multi-instance support and VS Code remote SSH integration
Open Source
Free and open-source under the Apache-2.0 license; users provide their own Claude Code or Codex subscriptions/API keys.
Best for
Security-conscious developers who want to run autonomous coding agents on real projects without risking host machine compromise.
Not ideal for
Windows users, systems lacking KVM or Apple Silicon virtualization, and users requiring support for agents other than Claude Code or Codex.
A robust, security-focused tool that effectively mitigates the risks of autonomous agent execution by providing a hardened, disposable sandbox.
Added Codex support with a dedicated launcher, devcontainer.json inspection, an in-app coop update command, and a formal trust-model document.
As of
Is coop free?+
Yes - coop is Open Source. Free and open-source under the Apache-2.0 license; users provide their own Claude Code or Codex subscriptions/API keys.
Is coop open source?+
Yes - coop is open source. Free and open-source under the Apache-2.0 license; users provide their own Claude Code or Codex subscriptions/API keys.
Who is coop best for?+
Security-conscious developers who want to run autonomous coding agents on real projects without risking host machine compromise.
Who is coop not ideal for?+
Windows users, systems lacking KVM or Apple Silicon virtualization, and users requiring support for agents other than Claude Code or Codex.
What are the best coop alternatives?+
The closest coop alternatives on ai.dosa.dev are Pieces for Developers, agenttrace, Vibe Kanban - all listed under Developer Productivity & Workflow.
Who makes coop?+
coop is developed by Trail of Bits. It is listed in the Developer Productivity & Workflow category on ai.dosa.dev.
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