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MCP Ping-Pong Server with FastAPI

@kimtth

Repository

Basic information

Category

Developer Tools

Transports

stdio

Author

kimtth

About MCP Ping-Pong Server with FastAPI

🏓 An experimental and educational script for Ping-pong server demonstrating remote MCP (Model Context Protocol) calls

#mcp#model-context-protocol#mcp-server#mcp-client

MCP Ping-Pong Server with FastAPI config

Add this server to your MCP-compatible client using the configuration below.

{
  "mcpServers": {
    "mcp-fastapi-ping-pong": {
      "command": "python",
      "args": [
        "mcp-api-server.py"
      ]
    }
  }
}

MCP Ping-Pong Server with FastAPI tools

Tool list not available yet

This listing does not currently have a tool list to display. This does not mean the server has no tools; check its documentation for supported capabilities.

We auto-extract tools from the README. The maintainer can list them under a ## Tools heading to populate this section.

Overview

What is 🏓 MCP Ping-Pong Server with FastAPI?

An experimental and educational Ping-Pong server that demonstrates MCP (Model Context Protocol) calls through a FastAPI/FastMCP backend. It provides a simple command‑handling system (ping, pong, count) accessible via API endpoints or Server‑Sent Events (SSE), making it a learning tool for understanding remote MCP integrations.

How to use 🏓 MCP Ping-Pong Server with FastAPI?

Install dependencies with poetry install. Run python mcp-api-server.py to start the FastAPI server on http://localhost:8080 and open mcp-api-client.html in a browser for the UI, or use the API directly. For SSE transport, run python mcp-sse-server.py and then python mcp-sse-client.py to interact via the command line with commands like ping, pong, and count.

Key features of 🏓 MCP Ping-Pong Server with FastAPI

  • FastAPI/FastMCP backend for remote MCP calls.
  • MCP integration for command handling (ping, pong, count).
  • Thread-safe session management.
  • API endpoints for GET (prompt retrieval) and POST (tool invocation).
  • SSE transport support for real‑time communication.

Use cases of 🏓 MCP Ping-Pong Server with FastAPI

  • Learning how to build and run an MCP server with FastAPI.
  • Demonstrating remote MCP calls via HTTP and SSE transports.
  • Experimenting with thread-safe session handling in MCP.
  • Teaching MCP concepts through a simple, interactive command loop.

Frequently asked questions

1

What commands does the server support?

The MCP server supports three commands: `ping`, `pong`, and `count`. The sample output shows `ping` returns `pong`, `pong` returns `ping`, and `count` returns the current count (e.g., `2`).

2

How do I install and run the server?

Install dependencies with `poetry install`. For the API server, run `python mcp-api-server.py`. For SSE, run `python mcp-sse-server.py`. The client for SSE is started with `python mcp-sse-client.py`.

3

Is there a graphical user interface?

Yes, the repository includes `mcp-api-client.html` which you can open in a browser to interact with the API server via a simple UI.

4

What transport options are available?

Two transport methods are demonstrated: HTTP API (GET/POST endpoints at `http://localhost:8080`) and Server-Sent Events (SSE) using separate server and client scripts.

5

What dependencies does the server require?

All Python dependencies are managed via Poetry. The key libraries include FastAPI and FastMCP (for the backend), along with other runtime dependencies listed in the `pyproject.toml` file.

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