sandbox-mcp gives an AI agent a fresh, disposable Windows 11 machine for testing apps.
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Its `sbx` CLI and optional MCP adapter boot Windows Sandbox, deploy a build, drive the UI, collect screenshots and logs, and then delete the guest, so agents can verify that software runs on a clean PC rather than only on the developer's machine.
- 01
`sbx` CLI for one-shot runs, installer tests and long-lived sessions
- 02
Optional MCP server exposing 27 tools with inline screenshots
- 03
UI Automation clicks and interactive-desktop screenshots tied to a window
- 04
Network-off guests to catch missing runtime dependencies such as VC++ redistributables
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Incremental warm deployment with restart and rollback
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Bounded desktop recording with HTML playback and optional MP4
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Agent-led setup guide with checksum verification and consent before admin changes
Open Source
sandbox-mcp is free and open-source under the MIT license. It relies on Windows Sandbox, which is built into Windows 11 Pro, Enterprise and Education (24H2 or later); Windows Home and Windows Server are not supported.
Best for
Windows desktop app developers who want Copilot, Claude, Cursor or other MCP-capable agents to test builds and installers on a clean Windows machine.
Not ideal for
macOS or Linux users, Windows Home editions, or teams that need cross-platform or cloud-hosted test machines.
A practical, well-documented bridge between coding agents and Windows Sandbox for clean-machine app testing; Windows-only and very new.
v1.2.0, released on November 7, 2026, added desktop recording, encrypted guest transport, warm deployment, MSIX/Appx handling and an agent-led setup guide, one day after v1.1.0.
As of
Is sandbox-mcp free?+
Yes - sandbox-mcp is Open Source. sandbox-mcp is free and open-source under the MIT license. It relies on Windows Sandbox, which is built into Windows 11 Pro, Enterprise and Education (24H2 or later); Windows Home and Windows Server are not supported.
Is sandbox-mcp open source?+
Yes - sandbox-mcp is open source. sandbox-mcp is free and open-source under the MIT license. It relies on Windows Sandbox, which is built into Windows 11 Pro, Enterprise and Education (24H2 or later); Windows Home and Windows Server are not supported.
Who is sandbox-mcp best for?+
Windows desktop app developers who want Copilot, Claude, Cursor or other MCP-capable agents to test builds and installers on a clean Windows machine.
Who is sandbox-mcp not ideal for?+
macOS or Linux users, Windows Home editions, or teams that need cross-platform or cloud-hosted test machines.
What are the best sandbox-mcp alternatives?+
The closest sandbox-mcp alternatives on ai.dosa.dev are GitAuto, AgentDiff, Agent QA - all listed under AI Testing & Quality Assurance.
Who makes sandbox-mcp?+
sandbox-mcp is developed by Scott Hanselman. It is listed in the AI Testing & Quality Assurance category on ai.dosa.dev.
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