This MCP module provides an easy way to build MCP-compliant servers within NestJS applications, supporting resource, tool, and prompt definitions with decorators. It simplifies exposing resources, tools, and prompts through familiar NestJS patterns, and supports multiple transport layers including STDIO and HTTP/SSE. Built on TypeScript, it offers strong typing and easy configuration for rapid MCP server development.
Added on:
Created by:
Apr 26 2025
This MCP module provides an easy way to build MCP-compliant servers within NestJS applications, supporting resource, tool, and prompt definitions with decorators. It simplifies exposing resources, tools, and prompts through familiar NestJS patterns, and supports multiple transport layers including STDIO and HTTP/SSE. Built on TypeScript, it offers strong typing and easy configuration for rapid MCP server development.
Added on:
Created by:
Apr 26 2025
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What is NestJS Model Context Protocol (MCP) Module?
The NestJS MCP module enables developers to quickly create MCP-compliant servers using a decorator-based API within NestJS. It allows defining resources, tools, and prompts with simple method decorators such as `@McpResource`, `@McpTool`, and `@McpPrompt`. It supports various transport layers like STDIO for CLI tools and HTTP/SSE for web-based communication. The module features validation schemas with Zod, dependency injection, and customizable configuration via `.forRoot()` and `.forRootAsync()`. It streamlines exposure of resources and functionalities, making it suitable for integrating advanced AI, LLMs, and other MCP-based services into NestJS applications efficiently.
Who will use NestJS Model Context Protocol (MCP) Module?
- NestJS developers building MCP servers
- AI/ML developers integrating MCP resources
- Backend engineers creating resource management tools
- Organizations deploying MCP-based microservices
How to use the NestJS Model Context Protocol (MCP) Module?
- Step 1: Install the module and its peer dependencies.
- Step 2: Import `McpModule` into your root module and configure with `forRoot()` or `forRootAsync()`, providing server info.
- Step 3: Define resources, tools, and prompts using decorators `@McpResource`, `@McpTool`, and `@McpPrompt` within your providers.
- Step 4: Use `StderrLogger` if using STDIO transport to prevent stdout interference.
- Step 5: Run your NestJS application. The module automatically registers the decorated methods as MCP handlers, accessible via STDIO or HTTP endpoints depending on configuration.
NestJS Model Context Protocol (MCP) Module's Core Features & Benefits
The Core Features
- Define MCP resources with fixed or templated URIs
- Expose tools with input validation schemas
- Create prompts for user interactions
- Support multiple transport layers (STDIO, SSE)
- Automatic discovery of decorated methods
- Type-safe parameter handling with Zod schemas
The Benefits
- Simplifies building MCP servers within NestJS
- Familiar decorator-based API reduces complexity
- Supports multiple transport layer configurations
- Type safety and validation for resource parameters
- Flexible and easily extendable for complex use cases
NestJS Model Context Protocol (MCP) Module's Main Use Cases & Applications
- AI chatbot resource hosting
- Resource and tool sharing between MCP clients
- Prompt-based user interaction systems
- Integrating MCP with LLMs and NLP tools
- Custom resource management for microservices
FAQs of NestJS Model Context Protocol (MCP) Module
Developer
- bamada
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