NestJS MCP Server Module

# MCP-Nest Playground A quick-start environment for testing and exploring MCP-Nest features without building a full application. ## Quick Start ### Option 1: Test with MCP Inspector (Recommended) MCP Inspector provides a web-based UI to interact with your MCP server - perfect for testing tools, resources, and prompts visually. #### For HTTP+SSE Transport (Stateful Server) ```bash # 1. Start the stateful server npx ts-node-dev --respawn ./playground/servers/server-stateful.ts # 2. Launch MCP Inspector npx @modelcontextprotocol/inspector # 3. In your browser at http://127.0.0.1:6274: # - Set Transport Type to: SSE # - Set URL to: http://localhost:3030/sse ``` #### For Streamable HTTP Transport ```bash # 1. Start the server (stateful or stateless) npx ts-node-dev --respawn ./playground/servers/server-stateful.ts # OR npx ts-node-dev --respawn ./playground/servers/server-stateless.ts # 2. Launch MCP Inspector npx @modelcontextprotocol/inspector # 3. In your browser at http://127.0.0.1:6274: # - Set Transport Type to: Streamable HTTP # - Set URL to: http://localhost:3030/mcp ``` #### For STDIO Transport ```bash # 1. Run the MCP Inspector and configure it to use the STDIO server npx @modelcontextprotocol/inspector@0.13.0 npx ts-node-dev --respawn playground/servers/stdio.ts # 2. In your browser: # - Set Transport Type to: stdio ``` ### Option 2: Test with Code Clients Use code clients when you need to: - Automate testing - Build custom integrations - Test specific scenarios programmatically ```bash # Start your server first (choose one): npx ts-node-dev --respawn ./playground/servers/server-stateful.ts npx ts-node-dev --respawn ./playground/servers/server-stateless.ts # Then run a client: # For Streamable HTTP npx ts-node-dev --respawn ./playground/clients/http-streamable-client.ts # For HTTP+SSE (stateful server only) npx ts-node-dev --respawn ./playground/clients/http-sse.ts # For STDIO npx ts-node-dev --respawn ./playground/clients/stdio-client.ts ```