FileMCP is a native macOS app that gives ChatGPT controlled access to a local workspace through MCP
FileMCP is a native desktop app for macOS and Windows that gives ChatGPT controlled access to a local workspace through MCP. It can read and modify files, run Git operations, and—only when explicitly enabled—run local shell commands.
The MCP server stays bound to 127.0.0.1. FileMCP uses OpenAI Secure MCP Tunnel to make that local server available to supported OpenAI products without opening a public inbound port on your computer.
[!WARNING] FileMCP can modify or delete files inside the directory you choose. If command execution is enabled, it can also run processes with the permissions of your signed-in OS user. Use a narrowly scoped workspace and enable shell access only when you trust the workflow using it.
FileMCP is an independent open-source project. It is not an official OpenAI product.
- Native desktop implementations: - Swift + AppKit on macOS. - C + .NET 8 + WPF on Windows. - Equivalent MCP surface on both platforms: the same filesystem, Git, protocol, tunnel, and optional command-execution behavior. - Local MCP server listens on loopback only (127.0.0.1). - Built-in filesystem tools are restricted to one configured workspace root; optional shell commands are not OS-sandboxed. - Symlink/reparse-point and canonical-path checks protect the workspace boundary. - Git operations are available without enabling arbitrary shell execution. - Optional shell execution is off by default. - Runtime API keys are stored in the operating system credential store: - macOS Keychain. - Windows Credential Manager. - Process output, request sizes, search scope, and concurrency are b
From the project README.
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One platform to build, run, and operate every data workflow your team touches. Source-available, self-hosted.
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