mcp-chatgpt-responsesMCP server for access to OpenAI's ChatGPT API with Responses API for conversation management

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Reviewed by Daniel Nikulshyn·Updated July 2026

Overview

This MCP server allows access to OpenAI's ChatGPT API directly from Claude Desktop. It enables customizable parameters for ChatGPT API calls, long-running discussions between Claude and ChatGPT, and web search for up-to-date information. The server utilizes OpenAI's Responses API for automatic conversation state management. Users can configure model versions, temperature, and other parameters, and use their own OpenAI API key. The tool simplifies code by letting OpenAI handle conversation history. The project was created to allow Claude and ChatGPT to interact with each other. It can be installed via Smithery or by cloning the repository and setting up a virtual environment. The server provides tools to send prompts to ChatGPT with or without web search enabled, and supports conversation state management through the Responses API.

Key features

Call ChatGPT API with customizable parameters
Aks Claude and ChatGPT to talk to each other in long-running discussions
Configure model versions, temperature, and other parameters
Use web search to get up-to-date information
Uses OpenAI's Responses API for automatic conversation state management
Use your own OpenAI API key

Pricing

Model: Free
Category: MCP Servers
Rating: No reviews yet

Use cases

Basic ChatGPT Usage

Use the ask_chatgpt tool to answer questions, such as 'What is the best way to learn Python?'

Conversation with ChatGPT

Use the ask_chatgpt tool to have a two-way conversation with ChatGPT about a specific topic

Web Search Integration

Use the ask_chatgpt_with_web_search tool to answer questions that benefit from up-to-date information, such as 'What are the latest developments in quantum computing?'

Pros & Cons

Pros

Enables direct access to ChatGPT API from Claude Desktop
Supports customizable parameters for ChatGPT API calls
Utilizes OpenAI's Responses API for automatic conversation state management
Allows use of own OpenAI API key
Supports long-running discussions between Claude and ChatGPT

Cons

Requires Python 3.10 or higher
Requires Claude Desktop application
Requires OpenAI API key
May have limitations based on OpenAI API usage policies

Reviews

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Q&A

Is web search integration optional when sending prompts to ChatGPT?

Yes, the server offers tools to send prompts with or without web search enabled, letting you choose whether to retrieve up‑to‑date information for each request.

Asked by Femi Adebayo · Nov 30, 2025

How does the server manage conversation history between Claude and ChatGPT?

It leverages OpenAI’s Responses API, which automatically tracks conversation state, allowing long‑running discussions without you having to code manual history handling.

Asked by Nikolai Petrenko · Sep 21, 2025

Can I use my own OpenAI API key with the MCP server, and how does it affect usage limits?

Yes, you supply your own OpenAI API key, which means you are subject to OpenAI’s usage policies and rate limits. The server does not provide its own quota; all costs and limits are applied to your key.

Asked by Fumiko Sato · Sep 16, 2025

What Python version and environment are required to run the MCP server?

The server requires Python 3.10 or higher and should be set up in a virtual environment. Installation can be done via Smithery or by cloning the repo and manually configuring the environment.

Asked by Jana Krejčí · Aug 15, 2025