@nest-openapi/mcp weekly downloads statistics

<p align="center"> <img src="./docs/public/nest-openapi-logo.png" alt="nest-openapi-logo" height="84" /> </p> <h1 align="center">@nest-openapi</h1> <p align="center"><strong>OpenAPI‑first utilities for NestJS</strong></p> <p align="center"> Single source of truth · Drop‑in for NestJS · Fast by design </p> <p align="center"> <a href="https://deepwiki.com/ts-oas/nest-openapi"> <img src="https://img.shields.io/badge/DeepWiki-ts--oas%2Fnest--openapi-blue.svg?color=teal&logo=data:image/png;base64,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" alt="DeepWiki" /> </a> <a href="https://github.com/ts-oas/nest-openapi/blob/main/LICENSE"> <img src="https://img.shields.io/github/license/ts-oas/nest-openapi" alt="License" /> </a> </p>

---

Features

• 🎯 Single Source of Truth — Your OpenAPI spec drives validation, serialization, mocking, and MCP tools.
• ⚡ Fast by Design — AJV validation and fast-json-stringify serialization with caching and precompilation.
• 🔌 Drop-in Integration — Works with existing NestJS controllers and routes
• 🎛️ Fine-Grained Control — Per-route opt-out and custom schema overrides
• 🚀 Platform Agnostic — Supports both Express and Fastify adapters

Packages

Package	Description	Version
@nest-openapi/validator	Automatic request/response validation using your OpenAPI spec
@nest-openapi/serializer	High-performance response serialization based on your OpenAPI spec
@nest-openapi/mock	Spec-driven mock server for generating realistic mock responses
@nest-openapi/mcp	Spec-driven MCP server for exposing OpenAPI operations as tools

Quick Start

Validator

npm i @nest-openapi/validator

import { Module } from "@nestjs/common";
import { OpenAPIValidatorModule } from "@nest-openapi/validator";
import * as openApiSpec from "./openapi.json";

@Module({
  imports: [
    OpenAPIValidatorModule.forRoot({
      specSource: { type: "object", spec: openApiSpec },
    }),
  ],
})
export class AppModule {}

All routes are automatically validated. See full documentation for advanced configuration.

Serializer

npm i @nest-openapi/serializer

import { Module } from "@nestjs/common";
import { OpenAPISerializerModule } from "@nest-openapi/serializer";
import * as openApiSpec from "./openapi.json";

@Module({
  imports: [
    OpenAPISerializerModule.forRoot({
      specSource: { type: "object", spec: openApiSpec },
      responseSerialization: { enable: true, skipErrorResponses: true },
    }),
  ],
})
export class AppModule {}

Responses are automatically serialized. See full documentation for advanced configuration.

Mock

npm i @nest-openapi/mock

import { Module } from "@nestjs/common";
import { OpenAPIMockModule } from "@nest-openapi/mock";
import * as openApiSpec from "./openapi.json";

@Module({
  imports: [
    OpenAPIMockModule.forRoot({
      specSource: { type: "object", spec: openApiSpec },
      enable: process.env.NODE_ENV === "development",
      mockByDefault: true,
    }),
  ],
})
export class AppModule {}

Routes return mocked responses when enabled. See full documentation for advanced configuration.

MCP

npm i @nest-openapi/mcp
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