📦 Extremely Lightweight (only tens of KB)
A single DLL of only tens of KB, no third-party dependencies. Works out-of-the-box with zero configuration. Legacy projects can integrate without modifying existing business code.
Lightweight, Hassle-free, Cross-platform, Zero-dependency, AOT, High-performance, Glue Features

❤️ As natural as calling a method — no learning curve, no configuration, zero dependencies. One line of code to add Web API.
// Add root route mapping
MyAPI.AddRoute("/", Hello);
// Start the server
MyAPI.StartServer();
// Method mapped to the root route
private async Task Hello(HttpListenerRequest request, HttpListenerResponse response)
{
await response.WriteAsync("Hello PicoServer");
}' Add root route mapping
MyAPI.AddRoute("/", AddressOf Hello)
' Start the server
MyAPI.StartServer()
' Method mapped to the root route
Private Async Function Hello(request As HttpListenerRequest, response As HttpListenerResponse) As Task
Await response.WriteAsync("Hello PicoServer")
End FunctionRemote monitoring, parameter configuration, data reporting — bring Web management to industrial control systems
No server deployment required — desktop apps directly provide APIs, supporting remote calls
One codebase runs everywhere, providing Web APIs simultaneously — unified application and service
Single-file deployment, zero-dependency runtime — quickly build backend services
Web services in resource-constrained environments — AOT compiled, ultra-low memory footprint
Serve as tool service base for AI Agents or MCP service endpoints. Millisecond startup, ultra-low resource consumption — enable every agent capability to quickly and stably provide API services.
💡 No IIS, No Kestrel, No Web development experience required — up and running in a minute
No need for complex frameworks — just a few lines of code to quickly implement API services. Built-in Token / JWT authentication.
Quickly add Web capabilities to old .NET Framework projects without refactoring or changing existing business code.
Add remote management interfaces to WinForm / WPF / MAUI / Avalonia apps. Single DLL embedding with AOT support.
Industrial gateways and edge computing scenarios with strict size, CPU, and memory constraints. Extremely low resource consumption.
Windows, macOS, Linux — glue feature works with any library, one codebase runs everywhere.
Web admin backends, SPA applications, small-to-medium websites. No ASP.NET Core required, no IIS dependency.