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MCP server · Developer Tools

Codex MCP Server

MCP server for Codex CLI with tmux persistence, git worktree isolation, and async dispatch.

Unclaimed last commit 6 months ago blockchain
72Good

Scored 18 days ago · breakdown

About Codex MCP Server

Codex MCP Server is an MCP server published by tuannvm in the Developer Tools category: mCP server for Codex CLI with tmux persistence, git worktree isolation, and async dispatch. It has been installed 0 times through Conduid.

The repository has 260 stars and 45 forks, with the last commit 6 months ago. Six months or more without a commit doesn't mean the server is broken, but check the open issues (0) before depending on it in production.

Install

Install
npx codex-mcp-server
Claude Code
claude mcp add codex-mcp-server -- npx -y @yuemingruoan/codex-mcp-server
npx
npx -y @yuemingruoan/codex-mcp-server
uvx
uvx codex-mcp-server
pip
pip install codex-mcp-server

This server has no ConduID identity, so agent calls to it are not receipted. Pin the version you install and review the source before granting it credentials.

Ask AI

Ask AI about Codex MCP Server

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I know everything about Codex MCP Server. Ask me about installation, configuration, usage, or troubleshooting.

Security checks

  • ·README presentNot checked yet.
  • ·License declaredNot checked yet.
  • ·Tests presentNot checked yet.
  • ·Dependencies pinnedNot checked yet.
  • ·No dynamic code executionNot checked yet.
  • !Scoped permissionsDoesn't declare a permission scope. Assume it can do anything its process can.

Releases

v1.4.10Release v1.4.10 · 10 Apr 2026📦 Uncategorized fix: close stdin on spawned processes to prevent hanging PR: #155
v1.4.3Release v1.4.3 · 7 Apr 2026📦 Uncategorized fix(test): remove redundant build test that always times out locally PR: #140 fix: surface cause details in error messages PR: #139 fix: set spawn cwd for workingDirectory to work around codex -C bug PR: #138
v1.4.2Release v1.4.2 · 7 Mar 2026📦 Uncategorized docs(websearch): Document codex --search exec usage and update handle… PR: #118
v1.4.1Release v1.4.1 · 7 Mar 2026📦 Uncategorized feat(tools): add websearch tool with streaming progress and docs PR: #117
v1.4.0Release v1.4.0 · 6 Feb 2026📦 Uncategorized feat(model): update default model to codex 5.3 PR: #110

README

Codex MCP Server

npm version npm downloads license

Bridge between Claude and OpenAI's Codex CLI — get AI-powered code analysis, generation, and review right in your editor.

graph LR
    A[Claude Code] --> B[Codex MCP Server]
    B --> C[Codex CLI]
    C --> D[OpenAI API]

    style A fill:#FF6B35
    style B fill:#4A90E2
    style C fill:#00D4AA
    style D fill:#FFA500

Quick Start

1. Install Codex CLI

npm i -g @openai/codex
codex login --api-key "your-openai-api-key"

2. Add to Claude Code

claude mcp add codex-cli -- npx -y codex-mcp-server

3. Start Using

Ask codex to explain this function
Use codex to refactor this code for better performance
Use review to check my uncommitted changes

One-Click Install

VS Code VS Code Insiders Cursor

Tools

Tool Description
codex AI coding assistant with session support, model selection, and structured output metadata
review AI-powered code review for uncommitted changes, branches, or commits
websearch Web search using Codex CLI with customizable result count and search depth
listSessions View active conversation sessions
ping Test server connection
help Get Codex CLI help

Examples

Code analysis:

Use codex to analyze this authentication logic for security issues

Multi-turn conversations:

Use codex with sessionId "refactor" to analyze this module
Use codex with sessionId "refactor" to implement your suggestions

Passing a sessionId creates the session on first use, so listSessions will show it (for this server instance) and subsequent calls can resume context.

Code review:

Use review with base "main" to check my PR changes
Use review with uncommitted true to review my local changes

Advanced options:

Use codex with model "o3" and reasoningEffort "high" for complex analysis
Use codex with fullAuto true and sandbox "workspace-write" for automated tasks
Use codex with callbackUri "http://localhost:1234/callback" for static callbacks
Use codex to return structuredContent with threadId metadata when available

Web search:

Use websearch with query "TypeScript 5.8 new features"
Use websearch with query "Rust vs Go performance 2025" and numResults 15
Use websearch with query "React Server Components" and searchDepth "full"

Requirements

  • Codex CLI v0.75.0+ — Install with npm i -g @openai/codex or brew install codex
  • OpenAI API key — Run codex login --api-key "your-key" to authenticate

Codex 0.87 Compatibility

  • Thread ID + structured output: When Codex CLI emits threadId, this server returns it in content metadata and structuredContent, and advertises an outputSchema for structured responses.

Documentation

Environment Variables

  • CODEX_MCP_CALLBACK_URI: Static MCP callback URI passed to Codex when set (overridden by callbackUri tool arg)

Development

npm install    # Install dependencies
npm run dev    # Development mode
npm run build  # Build for production
npm test       # Run tests

Related Projects

  • gemini-mcp-server — MCP server for Gemini CLI with 1M+ token context, web search, and media analysis
  • Clotch — Dynamic Island for Claude Code on macOS — monitor sessions across multiple machines and providers in real time

License

ISC

README mirrored from the source repository 18 days ago. The original is authoritative.

Questions

About Codex MCP Server

How do I install Codex MCP Server?

Run npx codex-mcp-server, then add the server to your MCP client's configuration. Conduid has recorded 0 installs, so the command is known to work with current clients.

Is Codex MCP Server safe to use with an AI agent?

Its trust score is 72 out of 100 (good). It passes 0 of 1 static security checks; the failures are listed above. It has no ConduID identity yet, so agent calls to it are not receipted.

Is Codex MCP Server still maintained?

Yes — the latest release is v1.4.10 (10 Apr 2026), and the last commit was 6 months ago. The repository has 260 stars and 0 open issues.