AI agent sandbox with real-time network control and kernel-level enhanced security
Greywall is an AI agent sandboxing tool that runs on your machine, offering granular control over their actions. It enforces a default-deny security policy at the kernel level, restricting access to sensitive files (like SSH keys or .env files), blocking unauthorized network connections, and providing real-time visibility into all operations via a dashboard. Unlike containers, Greywall allows agents to access your local development environment without compromising security, utilizing mechanisms like Bubblewrap, Landlock, Seccomp BPF, and eBPF on Linux, and Seatbelt on macOS. It is compatible with all CLI agents and requires no agent-specific configuration. Greywall also offers a learning mode to automatically generate security rules based on observed usage.
For a university student, Greywall enables secure use of AI coding assistants for homework assignments. Example: Running `greywall --profile python -- opencode` to safely access Python libraries and the internet for code generation without exposing personal files or credentials.
For a solopreneur developer, Greywall allows safe experimentation with new AI development tools and agents. Example: Using `greywall --learning -- opencode` to understand the file access and network requests an AI agent needs, then creating a custom profile to grant only necessary permissions, preventing accidental data leaks.
For a software developer, Greywall provides a secure sandbox for local AI code generation tasks. Example: Executing `greywall --profile node -- npm install` to safely install Node.js packages recommended by an AI agent, ensuring that only approved network destinations are accessible and sensitive files are protected.
For a freelance developer, Greywall safeguards client project integrity when using AI coding assistants. Example: Running `greywall -c 'your-ai-command'` to restrict the AI agent's filesystem access to only the project directory and block any unauthorized outbound network connections, protecting client data.
Yes, Greywall is free to use. It is an open-source tool available under the Apache License 2.0.
Alternatives to Greywall include Firejail for Linux-focused desktop application isolation, and Docker with `--network none` for strong network isolation within containers. The best choice depends on your specific needs for command-line tools versus desktop applications.
Greywall is free and open-source software. There are no costs associated with using Greywall.
Greywall is designed as a defense-in-depth measure for semi-trusted code, not for actively malicious code. It does not prevent resource exhaustion or data exfiltration to allowed domains. Information regarding GDPR compliance is not readily available.
Greywall is designed for command-line tools and build workflows, with first-class support for macOS and delegation of network filtering to an external proxy. Firejail is more focused on Linux desktop application isolation and has many pre-built application profiles.
Greywall is primarily designed for Linux and macOS command-line environments. It does not have dedicated mobile, web, or traditional desktop application versions.
Greywall can be installed on macOS via Homebrew (`brew install greywall`) or on Linux and macOS using a curl script (`curl -fsSL https://raw.githubusercontent.com/GreyhavenHQ/greywall/main/install.sh | sh`). It can also be installed via `go install` or built from source.
Greywall supports both Linux and macOS operating systems. It utilizes `bubblewrap` on Linux and `sandbox-exec` (Seatbelt) on macOS for its sandboxing capabilities.
We're still verifying the official pricing for Greywall. In the meantime, the most up-to-date plans and prices are available directly on the publisher's website.
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