ChatGPT Responses MCP

Name: ChatGPT Responses MCP
Author: billster45

billster45

Get started Repository

Lets Claude talk to ChatGPT through OpenAI's Responses API, keep conversation state, and use ChatGPT's web search.

Setup

Choose your client, copy the config, then fill in any required environment variables.

Add to Cursor Add to VS Code

claude mcp add chatgpt-responses --env DEFAULT_MODEL='<DEFAULT_MODEL>' --env DEFAULT_TEMPERATURE='<DEFAULT_TEMPERATURE>' --env MAX_TOKENS='<MAX_TOKENS>' --env OPENAI_API_KEY='<OPENAI_API_KEY>' -- npx -y @smithery/cli install @billster45/mcp-chatgpt-responses --client claude

~/.codex/config.toml

[mcp_servers.chatgpt-responses]
command = "npx"
args = ["-y", "@smithery/cli", "install", "@billster45/mcp-chatgpt-responses", "--client", "claude"]
env = { DEFAULT_MODEL = "<DEFAULT_MODEL>", DEFAULT_TEMPERATURE = "<DEFAULT_TEMPERATURE>", MAX_TOKENS = "<MAX_TOKENS>", OPENAI_API_KEY = "<OPENAI_API_KEY>" }

# codex mcp add chatgpt-responses --env DEFAULT_MODEL='<DEFAULT_MODEL>' --env DEFAULT_TEMPERATURE='<DEFAULT_TEMPERATURE>' --env MAX_TOKENS='<MAX_TOKENS>' --env OPENAI_API_KEY='<OPENAI_API_KEY>' -- npx -y @smithery/cli install @billster45/mcp-chatgpt-responses --client claude

~/.cursor/mcp.json

{
  "mcpServers": {
    "chatgpt-responses": {
      "command": "npx",
      "args": [
        "-y",
        "@smithery/cli",
        "install",
        "@billster45/mcp-chatgpt-responses",
        "--client",
        "claude"
      ],
      "env": {
        "DEFAULT_MODEL": "<DEFAULT_MODEL>",
        "DEFAULT_TEMPERATURE": "<DEFAULT_TEMPERATURE>",
        "MAX_TOKENS": "<MAX_TOKENS>",
        "OPENAI_API_KEY": "<OPENAI_API_KEY>"
      }
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "chatgpt-responses": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@smithery/cli",
        "install",
        "@billster45/mcp-chatgpt-responses",
        "--client",
        "claude"
      ],
      "env": {
        "DEFAULT_MODEL": "<DEFAULT_MODEL>",
        "DEFAULT_TEMPERATURE": "<DEFAULT_TEMPERATURE>",
        "MAX_TOKENS": "<MAX_TOKENS>",
        "OPENAI_API_KEY": "<OPENAI_API_KEY>"
      }
    }
  }
}

~/.gemini/settings.json

{
  "mcpServers": {
    "chatgpt-responses": {
      "command": "npx",
      "args": [
        "-y",
        "@smithery/cli",
        "install",
        "@billster45/mcp-chatgpt-responses",
        "--client",
        "claude"
      ],
      "env": {
        "DEFAULT_MODEL": "<DEFAULT_MODEL>",
        "DEFAULT_TEMPERATURE": "<DEFAULT_TEMPERATURE>",
        "MAX_TOKENS": "<MAX_TOKENS>",
        "OPENAI_API_KEY": "<OPENAI_API_KEY>"
      }
    }
  }
}

claude_desktop_config.json

{
  "mcpServers": {
    "chatgpt-responses": {
      "command": "npx",
      "args": [
        "-y",
        "@smithery/cli",
        "install",
        "@billster45/mcp-chatgpt-responses",
        "--client",
        "claude"
      ],
      "env": {
        "DEFAULT_MODEL": "<DEFAULT_MODEL>",
        "DEFAULT_TEMPERATURE": "<DEFAULT_TEMPERATURE>",
        "MAX_TOKENS": "<MAX_TOKENS>",
        "OPENAI_API_KEY": "<OPENAI_API_KEY>"
      }
    }
  }
}

.trae/mcp.json

{
  "mcpServers": {
    "chatgpt-responses": {
      "command": "npx",
      "args": [
        "-y",
        "@smithery/cli",
        "install",
        "@billster45/mcp-chatgpt-responses",
        "--client",
        "claude"
      ],
      "env": {
        "DEFAULT_MODEL": "<DEFAULT_MODEL>",
        "DEFAULT_TEMPERATURE": "<DEFAULT_TEMPERATURE>",
        "MAX_TOKENS": "<MAX_TOKENS>",
        "OPENAI_API_KEY": "<OPENAI_API_KEY>"
      }
    }
  }
}

Environment variables

DEFAULT_MODEL
DEFAULT_TEMPERATURE
MAX_TOKENS
OPENAI_API_KEY

Replace the placeholders with your own credentials and keep them out of version control.

Setup

Environment variables

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