coop is a Rust CLI tool that manages isolated, disposable virtual machines for running AI coding agents such as Claude Code, Codex, and Grok Build.
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It allows these agents to have full access to tools like Docker and git within an isolated guest environment, protecting the host machine from potential risks.
- 01
Disposable, isolated VM environments using Firecracker (Linux) or Lima (macOS)
- 02
Host-side credential proxying to keep API keys out of the untrusted guest
- 03
Support for workspace synchronization via copy or mount transport
- 04
CLI-driven VM lifecycle management including setup, start, stop, and destroy
- 05
Configurable guest dotfiles and post-creation commands
Open Source
Distributed as open-source software under the Apache License 2.0.
Best for
Running autonomous AI coding agents that require broad system access while maintaining a strong security boundary for the host machine.
Not ideal for
Use cases requiring a permanent, long-running persistent development environment, as coop focuses on disposable, short-lived VMs.
An essential security utility for power users of AI coding agents who need to balance agent autonomy with host-level isolation.
Recent releases (v0.5.4) added support for Codex plugin marketplaces and reinforced the claude-review workflow against prompt injection. Previous updates introduced a secure credential-injecting proxy to prevent guest agents from accessing host API keys.
As of
Is coop free?+
Yes - coop is Open Source. Distributed as open-source software under the Apache License 2.0.
Is coop open source?+
Yes - coop is open source. Distributed as open-source software under the Apache License 2.0.
Who is coop best for?+
Running autonomous AI coding agents that require broad system access while maintaining a strong security boundary for the host machine.
Who is coop not ideal for?+
Use cases requiring a permanent, long-running persistent development environment, as coop focuses on disposable, short-lived VMs.
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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