OpenAI API MCP Server

Connect OpenAI's Responses API to 2,500+ apps via Mushroom MCP

Mushroom is viaSocket's MCP server platform. Connect OpenAI's Responses API to your Mushroom MCP server to call your connected apps programmatically from anywhere.

First, make sure that you have a valid OpenAI API key.

To view or generate a new OpenAI API key, go to the OpenAI platform API Keys page.

Export your API key as an environment variable:

bash

export OPENAI_API_KEY="sk-..."

Copy your MCP Endpoint URL directly from your Mushroom cluster dashboard and use it in the code example below.

OpenAI's Responses API can be used to call Mushroom MCP from anywhere.

curl --location 'https://api.openai.com/v1/responses' \
--header 'Content-Type: application/json' \
--header "Authorization: Bearer $OPENAI_API_KEY" \
--data '{
    "model": "gpt-4.1",
    "tools": [
        {
            "type": "mcp",
            "server_label": "mushroom",
            "server_url": "https://mcp.viasocket.com/mcp/your-unique-id",
            "require_approval": "never"
        }
    ],
    "input": "List all of my available tools",
    "tool_choice": "required"
}'