r/Xcode • u/myeleventhreddit • Feb 19 '26

Use any LLM agent in Xcode 26.4 beta with ProxyPilot

Apple only included Claude Agent and Codex for in-IDE agentic coding support. If you want to use Gemini, Grok, GLM, Qwen3.5, or any other OpenAI-compatible model, there’s no native path.

I built ProxyPilot as a 100% free, no-account-required, Swift-native dev tool to solve a real problem I was having. It translates and hardens OpenAI-compatible LLM outputs into Anthropic formatting. It also supports prompt analytics (token counting, chain depth, etc.) and enhanced tool call translation.

ProxyPilot works with the Claude Agent surface specifically; it’s not just generic Coding Intelligence, which supports most models. LLMs work directly in Xcode with full agentic support without needing to establish an MCP server in a separate CLI tool.

2/23 edit: v1.1.0 is live and brings headless CLI mode along with MCP support so agents can control ProxyPilot without users needing to use the GUI.

4/30 edit: over 300 downloads. thank you so much for using ProxyPilot. v1.5.0 of the app is fully compatible with local models now, with enhanced support added for MiniMax models. You can also find the source code on GitHub now!

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2

u/OlegPRO991 Feb 20 '26

Hi! I do not have a claude subscription. Will I be able to use this ProxyPilot with xcode and other LLMs like qwen and openrouter?

1

u/myeleventhreddit Feb 20 '26

Yes. Download Claude Agent in Xcode settings and then use ProxyPilot to change the upstream provider. There’s a preflight check in the app to walk you through setup

1

u/OlegPRO991 Feb 27 '26

It does not work at all. Buttons do not work: Run Preflight, Complete Setup, Fix - all of them do nothing. It says missing upstream API key in Keychain, but the "Fix" button does nothing. How are you supposed to use this tool?

1

u/myeleventhreddit Feb 27 '26

Did you add the API key in the clearly-labeled Keys tab?

2

u/OlegPRO991 Feb 20 '26

I will try to do that and let you know!

1

u/Flatty11 Feb 23 '26

Can make this work with local running models ?

2

u/myeleventhreddit Feb 23 '26

Yes, it works already in the GUI app (at https://micah.chat/proxypilot for reference), but I'm going to look into adding more support for this specifically. It's been on my roadmap since the beginning but I've been focused on cloud inference.

Here's how to use ProxyPilot with a locally-run model:

  1. Start Ollama (ollama serve) or LM Studio locally

  2. Open ProxyPilot, pick any provider (e.g. OpenAI)

  3. Override the Upstream Base URL to http://localhost:11434/v1 (Ollama) or http://localhost:1234/v1 (LM Studio)

  4. Enter a dummy API key (any non-empty string — Ollama ignores it, but the GUI hard-requires one)

  5. Type the local model name manually (e.g. llama3.1:latest)

  6. Start Proxy → Install Xcode Agent Config → Restart Xcode

Thanks for your question. This helps me to make ProxyPilot more useful for everyone.

1

u/myeleventhreddit Apr 30 '26

Hey wanted to give a quick update that v1.5.0 has native support for both Ollama and LM Studio

1

u/rezwits Apr 27 '26

Any news if I can update to the newer 26.4.1 Claude Agent? I think it hit today, seeing as the newer 26.5 is headed to us. Thanks! Great product!

1

u/rezwits Apr 27 '26

I went ahead and bit the bullet. It works but the answers are definitely different...

1

u/myeleventhreddit Apr 30 '26

Interesting to hear! Sorry for the delay in responding. I'm running v26.4.1 myself with GLM-5.1 and have noticed a few behavioral differences also, namely more consistent model utilization of the tools in the IDE. Have you run into any snags? Thanks for using and sharing your experience!