viyv-mcp 0.1.3

A simple wrapper library for FastMCP + Starlette

README.md

viyv_mcp

viyv_mcp is a simple Python wrapper library for FastMCP and Starlette.
It enables you to quickly create a fully‐configured MCP server project with sample tools, resources, prompts, and external configuration support.

Features

• Quick Project Creation:
  Use the provided CLI command create-viyv-mcp new <project_name> to generate a new project template with a complete directory structure and sample files.
• Integrated MCP Server:
  Automatically sets up FastMCP with Starlette and provides an SSE-based API.
• Decorator APIs:
  Simplify registration of tools, resources, prompts, and agents with built-in decorators (@tool, @resource, @prompt, and @agent).
• External MCP Bridge Support:
  Automatically launches and registers external MCP servers based on JSON config files in app/mcp_server_configs.
• Health Check Endpoint:
  Provides a /health endpoint to verify server status (returns {"status":"ok"}).
• Template Inclusion:
  The generated project templates include:
  • Configuration Files: (e.g. app/config.py)
  • Prompts: (e.g. app/prompts/sample_prompt.py)
  • Resources: (e.g. app/resources/sample_echo_resource.py)
  • Tools: (e.g. app/tools/sample_math_tools.py)
  • MCP Server Configs: (e.g. app/mcp_server_configs/sample_slack.json)
  • Dockerfile, pyproject.toml, and main.py for the generated project.

Installation

From PyPI

Install viyv_mcp via pip:

pip install viyv_mcp

This installs the package as well as provides the CLI command create-viyv-mcp.

Usage

Creating a New Project Template

After installing the package, run:

create-viyv-mcp new my_mcp_project

This command creates a new directory called my_mcp_project with the following structure:

my_mcp_project/
├── Dockerfile
├── pyproject.toml
├── main.py
└── app/
    ├── config.py
    ├── mcp_server_configs/
    │   └── sample_slack.json
    ├── prompts/
    │   └── sample_prompt.py
    ├── resources/
    │   └── sample_echo_resource.py
    └── tools/
        └── sample_math_tools.py

Running the MCP Server

1. Change into your new project directory:

   cd my_mcp_project
   

2. Use uv to resolve dependencies (this uses the pyproject.toml for dependency management):

   uv sync
   

3. Start the server with:

   uv run python main.py
   

The server will start on 0.0.0.0:8000 by default. It exposes an SSE-based API at / and /messages, provides a health-check endpoint at /health (returns {"status":"ok"}), automatically registers local modules (tools, resources, prompts), and bridges external MCP servers defined in app/mcp_server_configs.

Package Structure

viyv_mcp/
├── __init__.py           # Exports version, ViyvMCP, and decorators
├── core.py               # FastMCP integration and ASGI app setup
├── cli.py                # CLI command (create-viyv-mcp)
├── decorators.py         # Decorators for tool, resource, prompt, and agent registration
├── app/
│   ├── config.py         # Configuration (HOST, PORT, BRIDGE_CONFIG_DIR)
│   ├── lifespan.py       # Lifecycle context manager
│   ├── registry.py       # Module auto-registration logic
│   └── bridge_manager.py # External bridge management (init and close)
└── templates/
    ├── Dockerfile
    ├── pyproject.toml
    ├── main.py
    └── app/              # Sample project scaffold
        ├── config.py
        ├── mcp_server_configs/sample_slack.json
        ├── prompts/sample_prompt.py
        ├── resources/sample_echo_resource.py
        └── tools/sample_math_tools.py

pyproject.toml
README.md

Contributing

Contributions are welcome! If you find a bug or have a feature request, please open an issue or create a pull request on GitHub.

License

This project is licensed under the MIT License. See the LICENSE file for details.

Contact

For any inquiries, please contact:

• hiroki takezawa
  Email: [e-mail]
• GitHub: BrainFiber/viyv_mcp