This week-end, I played a bit with Xcode 26.3 coding agent. I wanted to use Claude model served by Amazon Bedrock. I found three different ways, summarised in two blog posts. Part 1: https://stormacq.com/2026/02/19/xcode-openrouter-bedrock.html. Part 2: https://stormacq.com/2026/02/21/xcode-local-proxy-bedrock.html I wrote a small local proxy (In Swift) that translate OpenAI Chat Completion API Calls issued by Xcode into Anthropic message API on Bedrock. GitHub repo: https://github.com/sebsto/anthropic-proxy Don't install a binary proxy distributed as a DMG as you can't audit what that app does.