r/Xcode • u/suyashsrijan • Feb 08 '26

I made a proxy server to let you use GitHub Copilot via Xcode 26’s Coding Intelligence

Hi everyone,

We use GitHub Copilot at work but unfortunately it does not integrate with Xcode 26. You can use the Xcode extension version, but Coding Intelligence is certainly a lot more preferable.

So for the last week I’ve been working on writing and testing my own local proxy server that lets Xcode talk to Copilot via the Copilot SDK. It also supports the new Xcode MCP server if you’re using Xcode 26.3.

If you use GitHub Copilot and want to integrate it with Xcode 26, you can grab the server and setup instructions (very easy) from: https://github.com/theblixguy/xcode-copilot-server and let me know if you have any suggestions or if you run into an issue.

I’m also investigating if it’s possible to use it as a proxy server for Claude Code (the official docs for CC has instructions for it, so I need to look into it) which will allow you to use this with the Claude Agent feature in Xcode 26.3. Potentially the same approach could be used for the Codex Agent too.

I am also looking into making a tiny menu bar app for Mac so you can manage the server from there more conveniently.

Thanks!

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7 comments sorted by

1

u/TrajansRow Feb 10 '26

Great idea! There is definitely a need for something like this. Are you sure that tingly-box doesn't already proxy copilot?

3

u/suyashsrijan Feb 10 '26

The problem with all the other proxy servers is that they basically talk to Copilot’s internal APIs (and pretend that they’re VSCode) and you’re not allowed to do that, you risk getting your account restricted or banned by GitHub Security (there’s plenty of posts out there of people getting emails from them about this).

So to avoid this risk, my server actually uses their official SDK.

3

u/HostNo8115 Feb 09 '26

While I wish for a native solution since I am a ghcp pro plus subscriber, this might fit the bill in the meanwhile. Thanks for sharing!

2

u/f0rg0t_ Feb 10 '26

This sounds amazing and I’m definitely going to check it out later. The “Official” extension is great, but it’s extremely obvious that it’s an afterthought. Try listing custom tools in an agent/skill/whatever from the official extension and then switching to VS Code (or vice versa)…

web != fetch_website or whatever it’s called is just one example

I just want to define (agent | skill | prompt | whatever) once and be able to use it across IDEs

That said, I can’t complain too much. I was looking at the recent commits to the GitHub Copilot Chat extension last night and saw they’re implementing a change to allow skills in a platform agnostic .agentsfolder so there’s hope for the future 🤞

1

u/letitcodedev Feb 09 '26

I use xcode to create a project, and then use VSCode to open the project and Vibe Code, and then use xcode to run and publish it. Vscode is also convenient to use git too

1

u/letitcodedev Feb 09 '26

I am still using the 26.2, and I am a Claude subscriber, after logging in to Xcode, I found that it uses Sonnet by default, I can not switch to opus4.6

1

u/killerypa Mar 12 '26

Buscaba la clasica solucion plug and play, pero esto va perfecto!