[BUG] [BUG] Claude not respecting Azure AI foundry environment variables

Found 2 possible duplicate issues:

1. https://github.com/anthropics/claude-code/issues/8522
2. https://github.com/anthropics/claude-code/issues/8500

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These are not duplicates. This issue is directly related to the documented process for Claudecode and azure ai foundry as noted here:

https://code.claude.com/docs/en/azure-ai-foundry

Same probleme here !

I think the article went out before launching an update for claude code to support azure ai foundry...

I think the article went out before launching an update for codex code to support azure ai foundry...

Possibly. I think the change notes indicate the feature was added

Hi i managed to make it work.
First I have added the variables export ANTHROPIC_DEFAULT_HAIKU_MODEL='claude-haiku-4-5'
export ANTHROPIC_DEFAULT_OPUS_MODEL='claude-opus-4-1' even if iam only using sonnet.
Then for the URL i used https://{myressource}-{location}.cognitiveservices.azure.com/anthropic you can find this URL on the page where you deployed claude it is in the python sample on the right.
Hope It will work for you

I tried a lot of combinations but I couldn't get it to work even with those directions. :-( Hoping for some other confirmation if others got it working.

Just saw an update in VSCode and refreshed tool and it worked for me now. 2.0.37.

Also I set CLAUDE_CODE_SKIP_AUTH_LOGIN=1 per docs (didn't do trial and error to confirm if that was required, just happy to get it running :-) )

Here's what I tested locally

npm install -g @anthropic-ai/claude-code
claude '/logout'

unset ANTHROPIC_FOUNDRY_BASE_URL ANTHROPIC_FOUNDRY_RESOURCE ANTHROPIC_FOUNDRY_API_KEY ANTHROPIC_API_KEY
export CLAUDE_CODE_USE_FOUNDRY=1
# NOTE: don't think this was required export CLAUDE_CODE_SKIP_FOUNDRY_AUTH=1
export ANTHROPIC_FOUNDRY_API_KEY="$(az cognitiveservices account keys list --name '' --resource-group '' --subscription '' --query key1 -o tsv)"
export ANTHROPIC_DEFAULT_HAIKU_MODEL=claude-haiku-4-5
export ANTHROPIC_DEFAULT_SONNET_MODEL=claude-sonnet-4-5
export ANTHROPIC_DEFAULT_OPUS_MODEL=claude-opus-4-1
export ANTHROPIC_FOUNDRY_RESOURCE=''
claude -p 'random haiku about what is in this projects readme'

I'm still running into issues in Azure Pipelines, but not certain of why it's hanging right now. Locally it worked.

Making progress here as well! The only issue I'm seeing now is that I don't get the haiku model as an option using the /model command.

Making progress here as well! The only issue I'm seeing now is that I don't get the haiku model as an option using the /model command.

Did you try claude-haiku-4-5? Not sure if they show up in models list without being set as env vars.

I still can't get it to work in CI and connect but did work locally.

FYI support for Microsoft Foundry was added in Claude Code version 2.0.45 (see https://github.com/anthropics/claude-code/blob/main/CHANGELOG.md#2045). Once you set the appropriate env vars, you should see claude /status showing the appropriate API Provider.

@ant-kurt I've been trying for two days and no luck in a CI context when setting these. I've gotten it to run locally but nothing remote. Just timeouts. Any idea to force more debug logging so I can figure out if a new issue or same as this one?

Same issue, the .claude/settings.json is ignored and I only see the login screen of Claude Code.

@sheldonhull ANTHROPIC_LOG=debug claude --debug will enable request and debug logging - these logs go to a file whose path Claude Code will output on start. These will confirm if requests are going to the proper Foundry deployment with correct auth.

@benyrfg please check that you're on Claude Code >= 2.0.45, the /status command shows the settings source (and no warnings about invalid settings files), and the env vars in settings.json are set like this:

  "env": {
    "CLAUDE_CODE_USE_FOUNDRY": "1",
    "ANTHROPIC_FOUNDRY_RESOURCE": "your-resource",
    "ANTHROPIC_DEFAULT_OPUS_MODEL": "your-opus-deployment",
    "ANTHROPIC_DEFAULT_SONNET_MODEL": "your-sonnet-deployment",
    "ANTHROPIC_DEFAULT_HAIKU_MODEL": "your-haiku-deployment"
  },

My version is 2.0.53, my env settings is:

{
  "env": {
    "CLAUDE_CODE_USE_FOUNDRY": "1",
    "ANTHROPIC_DEFAULT_OPUS_MODEL": "claude-opus-4-5",
    "ANTHROPIC_FOUNDRY_BASE_URL": "https://my.openai.azure.com/anthropic",
    "ANTHROPIC_FOUNDRY_API_KEY": "xxx"

  }
}

The connection works in terminal, but not in the IDE (I see only login screen)

Can you try this?

1. Open up "Preferences: Open User Settings" in VSCode command palette
2. Search for "claudeCode"
3. Toggle on "Disable Login Prompt"
4. Restart VSCode and see if it works

Also, please make sure you're on the latest version of the VSCode extension (update it, and then restart VSCode). It should be v2.0.53 or higher

Thank you @hackyon-anthropic , The IDE is now displayed and connection works!

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