NitroStack
A full-stack TypeScript framework for building, testing and deploying production MCP servers and AI-native apps, with decorator-based tool definitions, dependency injection, built-in authentication and interactive UI widgets attached to tool output.
NitroStack is a TypeScript framework for building MCP servers, aimed at replacing the boilerplate of authentication, validation and middleware that an MCP server would otherwise need to assemble by hand. Tools, resources and prompts are declared with TypeScript decorators, backed by a dependency-injection container with singleton, transient and scoped lifecycles, and Zod schemas provide end-to-end type safety from schema to runtime.
It includes built-in JWT, OAuth 2.1 and API-key authentication, a middleware pipeline of guards, interceptors, pipes and exception filters, and a widgets package that attaches React components to a tool's output for interactive responses. The framework is modular, split into a core runtime, a CLI for scaffolding and code generation, and the widgets package, installed separately as needed.
NitroStudio, a companion desktop application, opens a scaffolded project to test tools, inspect payloads and chat with the running MCP server during development.