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Effortlessly Build Model Context Protocol Servers with OpenAPI or Swagger or Google Discovery Specifications
Effortlessly Build and Serve Model Context Protocol (MCP) Servers with OpenAPI, Swagger, or Google Discovery Specifications using .NET.
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.
dotnet tool install -g QuickMCP.CLI
dotnet add package QuickMCP
# 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
# Build a Claude Desktop extension (.mcpb) with AI-generated metadata
quickmcp build ce --spec-url https://api.example.com/swagger.json -m --author-name "Your Company"
# Build extension from existing config file
quickmcp build ce -c path/to/config.json -m -k YOUR_GEMINI_API_KEY
# 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
# Add a server configuration for quick access
quickmcp add server /path/to/config.json -n MyServer
# List available servers
quickmcp list server
# Serve installed server
quickmcp serve -i myServer
# Remove a stored server configuration
quickmcp delete server MyServer
// Create and configure a server
var serverInfoBuilder = McpServerInfoBuilder.ForOpenApi()
.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();
{
"mcpServers": {
"petStore": {
"command": "quickmcp",
"args": ["serve", "-c", "path/to/config.json"]
}
}
}
or Use installed server
{
"mcpServers": {
"petStore": {
"command": "quickmcp",
"args": ["serve", "-i", "server_id"]
}
}
}
For detailed documentation on the following topics, refer to the wiki:
We welcome contributions! Submit PR or Issues to contribute to the project.
QuickMCP is licensed under the MIT License. See the LICENSE file for details.
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