LLM SSE MCP Demo

Name: LLM SSE MCP Demo
Author: nlinhvu

@nlinhvu

关于 LLM SSE MCP Demo

This project demonstrates the integration between LLM clients and MCP (Model Context Protocol) servers using Server-Sent Events (SSE) for real-time communication.

基本信息

分类

AI 与智能体

许可证

MIT

运行时

java

传输方式

stdio

发布者

nlinhvu

配置

使用下面的配置,将此服务器添加到你的 MCP 客户端。

{
  "mcpServers": {
    "llm-sse-mcp-demo-2025": {
      "command": "docker",
      "args": [
        "compose",
        "up",
        "-d"
      ]
    }
  }
}

工具

未检测到工具

工具是从 README 中自动提取的。维护者可以在 ## Tools 标题下列出工具,即可填充这部分内容。

概览

What is LLM SSE MCP Demo?

LLM SSE MCP Demo is a multi-application demo project that integrates LLM clients with MCP (Model Context Protocol) servers using Server-Sent Events (SSE) for real-time communication. It includes an OAuth2 authorization server, an MCP server exposing math and date/time tools, and a web-based LLM client supporting Anthropic Claude, OpenAI GPT, Google Gemini, and Ollama. It targets developers building LLM-powered applications with external tool calling and observability.

How to use LLM SSE MCP Demo?

Start the observability stack (Prometheus, Tempo, Loki, Grafana) with Docker Compose, then run each Spring Boot app via ./gradlew bootRun in order: authorization server (port 9000), MCP server (port 8080), LLM client (port 10101). Set environment variables for cloud LLM API keys as needed. Open a browser to http://localhost:10101 to send queries like math operations or time requests.

Key features of LLM SSE MCP Demo

OAuth 2.0 authorization for MCP services
Mathematical tools: addition and multiplication
Date/time tools: current time and alarm setting
SSE-based real-time client-server communication
Multi-provider LLM support (Claude, GPT, Gemini, Ollama)
Integrated observability with Grafana, Prometheus, Tempo, Loki

Use cases of LLM SSE MCP Demo

Building LLM applications that can perform calculations and time queries
Demonstrating MCP protocol tool discovery and execution with SSE
Exploring OAuth2 security for LLM-triggered tool calls
Testing multi-model LLM integration in a single chat interface
Learning observability setup for MCP-based Spring Boot services

FAQ from LLM SSE MCP Demo

What LLM models are supported?

Anthropic Claude (claude-sonnet-4-20250514), OpenAI (o4-mini-2025-04-16), Google Gemini (gemini-2.5-flash-preview-05-20), and Ollama (qwen3:8b locally).

What tools does the MCP server provide?

Four tools: sumNumbers(int, int) – adds two numbers; multiplyNumbers(int, int) – multiplies two numbers; getCurrentDateTime() – returns current date/time; setAlarm(String) – sets an alarm for an ISO-8601 time.

How do I start the demo?

Start the Docker Compose services for observability, then run each Spring Boot application in order: authorization server, MCP server, LLM client, using ./gradlew bootRun. Access the chat at http://localhost:10101 and Grafana at http://localhost:3000.

What are the prerequisites?

Java 17 or higher, Gradle, Docker and Docker Compose, API keys for cloud LLM providers (optional), and Ollama installed locally if using local models.

How do I access the web interface?

Open http://localhost:10101 in a browser after starting the LLM client. For Grafana dashboards (Prometheus, Tempo, Loki), use http://localhost:3000.

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