QuickMCP

Effortlessly Build and Serve Model Context Protocol (MCP) Servers with OpenAPI, Swagger, or Google Discovery Specifications using .NET.

Introduction

QuickMCP is a powerful .NET toolkit designed to streamline the creation and deployment of Model Context Protocol (MCP) servers. It allows developers to quickly generate servers from OpenAPI, Swagger, or Google Discovery specifications, reducing boilerplate code and accelerating development.

Features

• Generate .NET MCP servers from OpenAPI/Swagger/Google Discovery specifications
• Highly configurable .NET library with CLI utility for rapid deployment
• Multiple configuration approaches (Configuration options or method chaining)
• Comprehensive authentication support:
  • API Key, Basic, Bearer Token, OAuth 2.0, Custom Header
  • Custom authentication implementation interface
• Generate Tools with Path filtering, HTTP customization, error handling, and logging
• Seamless integration with MCP clients like Claude Desktop
• Configuration file support and full async/await capabilities

Installation

CLI Installation

dotnet tool install -g QuickMCP.CLI

Library Installation

dotnet add package QuickMCP

Quick Start

Basic CLI Usage

# Serve directly from OpenAPI specification quickmcp serve --spec-url https://petstore.swagger.io/v2/swagger.json # Build a configuration file quickmcp build config --spec-url https://petstore.swagger.io/v2/swagger.json --output-path ./config # Serve using a configuration file quickmcp serve --config-path ./config/mcp_server_config.json # Add authentication to your configuration quickmcp build config --spec-url https://api.example.com/swagger.json --auth bearer

Library Integration Example

// Create and configure a server var serverInfoBuilder = new McpServerInfoBuilder(); serverInfoBuilder.FromUrl("https://petstore.swagger.io/v2/swagger.json") .WithBaseUrl("https://petstore.swagger.io") .AddDefaultHeader("User-Agent", "QuickMCP Client") .AddAuthentication(new ApiKeyAuthenticator("your-api-key", "X-API-Key", "header")); // Build server info var serverInfo = await serverInfoBuilder.BuildAsync(); //Integrate with official MCP C# SDK var hostBuilder = Host.CreateApplicationBuilder(); var mcpBuilder = hostBuilder.Services .AddMcpServer() .WithQuickMCP(mcpServerInfo) .WithStdioServerTransport(); //Run Server await hostBuilder.Build().RunAsync();