API Tester (OpenAI)

🚀 API Tester MCP Server

This is a Model Context Protocol (MCP) server that allows Claude to make API requests on your behalf. It offers tools for testing various APIs and has a dedicated integration with OpenAI's API.

🚀 Quick Start

This Model Context Protocol (MCP) server enables Claude to perform API requests on your behalf. It provides tools for testing diverse APIs and is specifically integrated with OpenAI's API.

✨ Features

• Send HTTP requests (GET, POST, PUT, DELETE) to any API.
• Test OpenAI's GPT models without sharing your API key.
• Generate images using DALL-E.
• Receive well-formatted responses for easy reading.

📦 Installation

Prerequisites

• Python 3.10 or higher.
• MCP SDK 1.2.0 or higher.

Installation Steps

1. Install the required dependencies:

pip install "mcp[cli]" httpx python-dotenv

2. Set up your OpenAI API key using one of the following methods:

Option 1: Environment Variables

# On Windows (PowerShell)
$env:OPENAI_API_KEY = "your-api-key"

# On Windows (Command Prompt)
set OPENAI_API_KEY=your-api-key

# On macOS/Linux
export OPENAI_API_KEY="your-api-key"

Option 2: Using a .env File (Recommended)

Create a .env file in the project directory (copy from .env.example):

OPENAI_API_KEY=your_openai_api_key_here

Run the Server

python main.py

💻 Usage Examples

Using with Claude

Once your server is running, you can connect to Claude by configuring it in the Claude Desktop configuration file.

Example Prompts

General API Testing

Use the get_request tool to fetch data from https://jsonplaceholder.typicode.com/posts/1

Use the post_request tool to send data with the following JSON body to https://jsonplaceholder.typicode.com/posts: {"title": "Test Post", "body": "This is a test", "userId": 1}

Using OpenAI Tools

Use the openai_chat_completion tool with the following input:
Prompt: Write a short poem about artificial intelligence
System Message: You are a helpful assistant skilled in writing poems
Model: gpt-4

Use the openai_image_generation tool with the following input:
Prompt: A view of a future city with flying cars and towering glass buildings at sunset
Size: 1024x1024

Available Tools

General API Tools

• get_request: Send a GET request to any URL.
• post_request: Send a POST request with a JSON body.
• put_request: Send a PUT request with a JSON body.
• delete_request: Send a DELETE request.

OpenAI-specific Tools

• openai_chat_completion: Generate text using OpenAI's chat models.
• openai_image_generation: Generate images using DALL-E.

📚 Documentation

Security Precautions

• Your OpenAI API key is stored on the server and will not be exposed in chats.
• API usage will count towards your OpenAI quota and may incur charges.
• When using in a production environment, always set your API key via environment variables or use a .env file.
• The .env file is included in .gitignore to prevent accidental commits of your API key.