Leonardo MCP Server

A Model Context Protocol (MCP) server for Leonardo AI, supporting both HTTP and stdio modes.

Features

Create image generation jobs with Leonardo AI
See available models
Check the status of image generation jobs
Get all the user's image generation jobs
Supports both HTTP and stdio transports

Installation

JSON Config

Support for Claude Desktop, Cursor and other MCP clients that use JSON config files.

Important

You will need to generate a Leonardo API key and set it in the environment variable LEONARDO_API_KEY before running the server.

{
  "mcpServers": {
    "leonardo-mcp-server": {
      "command": "uvx",
      "args": [
        "--from",
        "git+https://github.com/ish-joshi/leonardo-mcp-server",
        "leonardo-mcp-server",
        "stdio"
      ],
      "env": {
        "LEONARDO_API_KEY": "YOUR_LEONARDO_API_KEY"
      }
    }
  }
}

Demo

Running Modes

This server supports two modes:

HTTP mode (default):
- Suitable for remote clients (e.g., ChatGPT Playground, browser-based tools).
- The server runs an HTTP endpoint. You must expose it to the internet if your client is remote.
Stdio mode:
- Suitable for local clients that communicate over standard input/output (stdio).
- No network port is opened.

HTTP Mode (for remote clients)

Start the server in HTTP mode (default):

uvx --from git+https://github.com/ish-joshi/leonardo-mcp-server leonardo-mcp-server

If your client is remote (e.g., ChatGPT Playground), you must expose your local server to the internet. You can use ngrok or a similar tunneling tool:

ngrok http 8080

Copy the public URL from ngrok and use it as the endpoint in your client.

Stdio Mode (for local clients)

Start the server in stdio mode:

uvx --from git+https://github.com/ish-joshi/leonardo-mcp-server leonardo-mcp-server stdio

Environment Variables

LEONARDO_API_KEY (required): Your Leonardo AI API key.

Development

Edit main.py to add or modify MCP tools.
Run using python main.py and test with a compatible MCP client. I prefer to use 5ire MCP client for testing.
See python-sdk documentation for more info.

This server cannot be installed

security - not tested

license - not found

quality - not tested

How are these scores calculated?

A Model Context Protocol server that enables AI assistants to generate images using Leonardo AI, supporting both HTTP and stdio communication modes.

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