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[Sticky] FSUIPC WebSocket Server - START HERE

Posts: 3

Paul Henty

Topic starter

November 4, 2025 7:20 pm

(@paul-henty)

Joined: 4 months ago

FSUIPC WebSocket Server is a program that enables reading and writing Flight Sim data via FSUIPC over WebSocket connections.

You can use any programming language or technology that allows the sending and receiving of data to/from Web Sockets.

The WebSocket Server runs on the Flight Sim PC and responds to Web Socket requests from multiple clients.

Instructions on how to use the WebSocket Server, full API documentation and code examples in Javascript, VB.NET and C# are on the website:

http://fsuipcwebsockets.paulhenty.com/

Main Features:

The server program runs on the Windows PC that is running Flight Sim
Communication with the Flight Sim via FSUIPC by Pete and John Dowson or XPUIPC
Can be used with Microsoft Flight Sims from Version 2004, Prepar3d, and X-Plane
Client/Server communication is over a bi-directional WebSocket connection
Protocol is based on the exchange of JSON strings
Clients can be written in any technology that supports WebSockets and can encode/decode JSON
Supported by modern browsers
.NET DLL available on NuGet to make it easy to talk to the server from .NET applications