What peer dependencies are required?
`@modelcontextprotocol/sdk` (^1.10.2), `@nestjs/platform-express` (^10 or ^11), and `zod` (^3.0.0) must be installed.
NestJS MCP Module
@bamada
Basic information
About NestJS MCP Module
NestJS module for seamless Model Context Protocol (MCP) server integration using decorators.
NestJS MCP Module config
No standard config provided
This server doesn't expose a parseable MCP config block in its README. See the repository for install instructions.
RepositoryNestJS MCP Module 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 NestJS MCP Module?
A NestJS module that simplifies building Model Context Protocol (MCP) servers. It exposes resources, tools, and prompts using familiar NestJS decorators and supports STDIO and HTTP/SSE transport.
How to use NestJS MCP Module?
Install the package and its peer dependencies, then import McpModule into your root module via forRoot or forRootAsync. Define MCP capabilities by decorating provider methods with @McpResource, @McpTool, or @McpPrompt. Configure the transport type (STDIO or SSE) and run your application. For STDIO, replace the NestJS logger with the included StderrLogger.
Key features of NestJS MCP Module
- Seamless MCP integration using NestJS method decorators.
- Automatic discovery of decorated providers.
- Supports STDIO and HTTP/SSE transport.
- Uses Zod schemas for tool and prompt argument validation.
- Configurable via
forRootandforRootAsyncpatterns. - Includes
StderrLoggerfor STDIO transport compatibility.
Use cases of NestJS MCP Module
- Building CLI-based MCP servers using STDIO transport.
- Exposing MCP endpoints over HTTP/SSE for web clients.
- Defining typed MCP tools with parameter validation.
- Providing static and template MCP resources.
- Creating MCP prompt templates for LLM interactions.
Frequently asked questions
How do I configure the transport type?
Pass `transport` in `McpModule.forRoot(options)`. Choose `TransportType.STDIO`, `TransportType.SSE`, or `TransportType.NONE`.
How do I handle logging for STDIO transport?
Replace the NestJS logger with the `StderrLogger` class provided by the module to prevent logs from interfering with STDIO MCP communication.
What endpoints are exposed for HTTP/SSE transport?
The `McpHttpController` exposes `/api/mcp/sse` for SSE connections and `/api/mcp/messages` for message exchange.
What decorators are available for defining MCP capabilities?
`@McpResource`, `@McpTool`, and `@McpPrompt` for resources, tools, and prompts respectively.
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