SkillFoxx

Codexless MCP

An MCP server that gives plain ChatGPT chat a local Codex toolbox: files, commands, Chrome and Edge, live Excel

  • 125 ★ on the repository
  • Last commit
  • Apache-2.0
MCP server

Broad access

Why this level

  • ChatGPT gains access through a tunnel to files, commands and a browser profile with saved logins on your computer.
  • Changes to Excel and files apply as soon as a tool is called.
All reasons and checks

liyana31811/codexlessAuthor:liyana31811

Install

Manual install

sh ./bin/codexless-install.sh

Command for Apple Silicon macOS from the release source directory; on Windows run .\bin\codexless-install.cmd.

Access and checks

How we review

Broad accessThe tool can change data, run commands or handle secrets.

  • ChatGPT gains access through a tunnel to files, commands and a browser profile with saved logins on your computer.
  • Changes to Excel and files apply as soon as a tool is called.

This is third-party code. Review the repository files before installing.

What it does

Codexless is an MCP server that connects ChatGPT to the Codex toolbox on your computer. From a normal chat ChatGPT reads a project, edits files, runs bounded commands and uses Git and local CLIs. Project rules and Codex skills are picked up from the existing environment. Separate tool groups cover Chrome and Edge browsers (tab reads, screenshots, clicks, text entry, downloads) and a bounded Excel preview for an already connected workbook (reading sheets, searching, writing ranges, formatting). The Codex model is called only explicitly, after a text approval request with a task ID.

Who it is for. ChatGPT Plus and Pro subscribers who already use Codex locally and want its tools without leaving the usual chat.

Good fit when

  • A project lives on the computer and you prefer to delegate edits and test runs from ChatGPT chat.
  • A task must be finished in Chrome or Edge under an already open profile with saved logins.
  • A summary sheet in a running Excel needs reading, row lookup and a range update.
  • A team wants to reuse project rules and Codex skills inside ChatGPT chat.

Not a fit when

  • You need Windows Computer Use: it is not public on this surface yet.
  • The computer is an Intel Mac or Linux arm64: these platforms are outside the supported preview.
  • Policy forbids exposing a local machine outward through a tunnel.

Example request

Open my project, find the failing test, fix the cause and show the diff. Do not call the Codex model until I confirm.

MCP

Transport
stdio, http
Authentication
not required

Limitations

The project is a technical preview, version 0.1.2. Windows, Apple Silicon macOS and Ubuntu Linux on x64 are supported. Node.js 22 or newer and a working local Codex installation are required. ChatGPT does not reach localhost directly: a typical chain uses an authenticated tunnel and a ChatGPT custom app in developer mode. The browser part expects one connected extension per browser family and stops when several profiles expose one. The project is independent and not affiliated with OpenAI.

How to disable. Run the uninstall script from the install directory: codexless-uninstall.sh on macOS, codexless-uninstall.cmd on Windows. Then disconnect the ChatGPT app and close the tunnel.

FAQ

Does Codexless consume Codex quota?

Local actions that do not call the model create no Codex model usage. When the model is called, the chat first shows an approval request with the task, model and quota context.

How does ChatGPT reach my computer?

Through a chain: local Codexless, an authenticated tunnel or remote MCP endpoint, then a ChatGPT custom app. ChatGPT has no direct access to localhost.

Which platforms are supported?

Windows, Apple Silicon macOS and Ubuntu Linux on x64. Intel Mac is not supported and Linux arm64 is outside accepted support.

Does Codexless widen Codex permissions?

No. The permission ceiling comes from local Codex authorization, Codexless may only narrow an operation, and a remote caller cannot choose a stronger profile.

What can the browser part do?

Read tabs and pages, take viewport screenshots, open and close tabs, click and type, scroll and press Enter, Tab and Escape. Arbitrary JavaScript and coordinates are unsupported.

Discussion

No questions or reviews yet.

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README in short

The preview's public surface counts 45 tools. Installation runs from the source of the chosen release, and an upgrade is a rerun of the installer.

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