🧠 SSE-MCP-Gateway

This project provides a generic bridge to run any Model Context Protocol (MCP) server over Server-Sent Events (SSE). It wraps a stdio-based MCP server into a web-compatible SSE transport.

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🔧 Setup

1. Clone and install dependencies

git clone https://github.com/your-org/sse-mcp-gateway.git
cd sse-mcp-gateway
npm install

2. Define MCP launch command

Create a file named mcp-command.txt:

npx -y @elastic/mcp-server-elasticsearch

3. Create a .env file with environment variables (optional)

ES_URL=https://your-elasticsearch-url
ES_USERNAME=elastic
ES_PASSWORD=your-password

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🚀 Run the Gateway

node sse-mcp-gateway.js mcp-command.txt .env

The gateway will be available at:

• SSE Stream: GET /sse
• Message POST: POST /message (for sending user input to the MCP)

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🌐 Example Integration

This can be used in any frontend or automation (e.g. n8n, Ollama, Claude Desktop) expecting OpenAI-compatible SSE responses.

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🔒 Security Note

Avoid committing .env with sensitive credentials.

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📄 License

MIT License.