openai-tool2mcp
openai-tool2mcp is a lightweight, open-source bridge that wraps OpenAI’s powerful built-in tools as Model Context Protocol (MCP) servers. It enables you to use high-quality OpenAI tools like web search and code interpreter with Claude and other MCP-compatible models.
Why openai-tool2mcp?
AI developers today face a challenging choice:
- OpenAI’s ecosystem: Offers powerful built-in tools like web search and code interpreter, but ties you to a closed platform
- MCP ecosystem: Provides an open standard for interoperability, but lacks the advanced tools available in OpenAI
openai-tool2mcp bridges this gap by letting you use OpenAI’s mature, high-quality tools within the open MCP ecosystem, giving you the best of both worlds.
Key Features
- 🔍 Use OpenAI’s robust web search in Claude App
- 💻 Access code interpreter functionality in any MCP-compatible LLM
- 🔄 Seamless protocol translation between OpenAI and MCP
- 🛠️ Simple API for easy integration
Supported Tools
| OpenAI Tool | MCP Equivalent | Status |
|---|---|---|
| Web Search | Web Search | ✅ Implemented |
| Code Interpreter | Code Execution | ✅ Implemented |
| Web Browser | Browser | ✅ Implemented |
| File Management | File I/O | ✅ Implemented |
Technical Architecture
openai-tool2mcp works by:
- Exposing an MCP-compatible server interface
- Translating MCP requests to OpenAI Assistant API calls
- Converting OpenAI tool responses back to MCP format
- Delivering results to MCP clients like Claude App
For detailed technical information, see the Architecture Overview and Implementation Guide.
Quick Start
# Install from PyPI
pip install openai-tool2mcp
# Start the server with your OpenAI API key
OPENAI_API_KEY="your-api-key" openai-tool2mcp start
# Connect Claude App to http://localhost:8000
Ready to get started? Check out our Getting Started Guide for detailed instructions.