nitrocloudofficial/nitrostack

NitroStack

The enterprise-grade TypeScript framework for building production-ready MCP servers.

Decorators. Dependency Injection. Widgets. One framework to ship AI-native backends.

Documentation  ·  Quick Start  ·  Blog  ·  NitroStudio  ·  Discord

• Node.js >= 20.18 (download)
• npm >= 9

npx @nitrostack/cli init my-server

cd my-server
npm install
npm run dev

Your MCP server is running. Connect it to any MCP-compatible client.

Once your project is scaffolded, open the same folder in NitroStudio for visual testing and debugging.

• Download: https://nitrostack.ai/studio
• Open your my-server project folder
• Use NitroStudio to test tools, inspect payloads, and chat with your MCP server

Building MCP servers today means stitching together boilerplate, reinventing authentication, and hoping your tooling scales. NitroStack gives you an opinionated, batteries-included framework so you can focus on what your server actually does.

• Decorator-driven — Define tools, resources, and prompts with clean, declarative TypeScript decorators
• Dependency injection — First-class DI container with singleton, transient, and scoped lifecycles
• Auth built in — JWT, OAuth 2.1, and API key authentication out of the box
• Middleware pipeline — Guards, interceptors, pipes, and exception filters just like enterprise backends
• UI Widgets — Attach React components to tool outputs for rich, interactive responses
• Zod validation — End-to-end type safety from schema to runtime
• NitroStudio — A dedicated desktop app for testing, debugging, and chatting with your server

import { McpApp, Module, ToolDecorator as Tool, z, ExecutionContext } from '@nitrostack/core';

@McpApp({
  module: AppModule,
  server: { name: 'my-server', version: '1.0.0' }
})
@Module({ imports: [] })
export class AppModule {}

export class SearchTools {
  @Tool({
    name: 'search_products',
    description: 'Search the product catalog',
    inputSchema: z.object({
      query: z.string().describe('Search query'),
      maxResults: z.number().default(10)
    })
  })
  @UseGuards(ApiKeyGuard)
  @Cache({ ttl: 300 })
  @Widget('product-grid')
  async search(input: { query: string; maxResults: number }, ctx: ExecutionContext) {
    ctx.logger.info('Searching products', { query: input.query });
    return this.productService.search(input.query, input.maxResults);
  }
}

One decorator stack gives you: API definition + validation + auth + caching + UI — zero boilerplate.

NitroStack is modular. Install only what you need: The implementation workspace for NitroStack packages lives in typescript/.

NitroStudio is a desktop app purpose-built for developing MCP servers. Open your project folder — it handles the dev server for you.

Download NitroStudio

• Widget preview — Instantly visualize your interactive UI components
• Hot reload — Changes reflect in real time as you develop

• Discord — Ask questions, share projects, get help
• GitHub Discussions — Proposals, ideas, and Q&A
• Twitter / X — Announcements and updates
• YouTube — Product demos and walkthroughs
• LinkedIn — Company news and updates
• GitHub — Organization profile and open-source work
• Blog — Tutorials, deep dives, and release notes

We welcome contributions of all kinds — bug fixes, features, docs, and ideas. Read the Contributing Guide to get started.

Looking for a place to begin? Check out issues labeled good first issue.

NitroStack is open-source software licensed under the Apache License 2.0.