Configure Claude Code ACP to use Vertex or Bedrock

[dharmab]

How do I configure Claude Code and Zed to use Vertex or Bedrock instead of Anthropic's API?

This is important for billing reasons (at many orgs it's easier to add something to your existing GCP or AWS bill than to onboard a new vendor).

Thanks!

[stephen-melsom-s1]

I haven’t been able to get Bedrock + Claude Code + Zed working either. When I type /login in the Claude Code panel, I see an “Authentication Required” message with a Log in with Claude Code button. It doesn’t seem to recognize that I’m already authenticated.

Clicking the button opens a terminal with the prefilled command claude /login, but that fails since the /login slash command doesn’t exist when Bedrock is the backend (see this issue).

Any help would be appreciated! I'd love to be using Zed more!

[remi-gelinas]

I can't get vertex working either. Sending raw requests with my GCP auth token per the GCP documentation works fine, but Zed 404s on all models with the exact same endpoints as I sent requests to :/

[morgankrey]

We're working on it!

[babelian]

For similar billing reasons I run both Anthropic and Bedrock, and have this function

function claude_bedrock {
  export CLAUDE_CODE_USE_BEDROCK=1
  export AWS_REGION=us-east-1
  export VISUAL=zed

  # Optional: Override the region for the small/fast model (Haiku)
  # export ANTHROPIC_SMALL_FAST_MODEL_AWS_REGION=us-
  claude
}

which works nicely, was hoping putting those exports into the Zed settings env section would work but no luck.

[gerlv]

I managed to get it to work with Bedrock by starting the app in shell after setting the env variables

export AWS_PROFILE=your-aws-profile-name
export CLAUDE_CODE_USE_BEDROCK=1
export AWS_REGION=us-east-1

# if you use SSO or set keys here
aws sso login

# Run the app
/Applications/Zed.app/Contents/MacOS/zed 

[srid]

Similarly, I was able to get Google Vertex AI working by setting both CLAUDE_CODE_USE_VERTEX and ANTHROPIC_VERTEX_PROJECT_ID env vars. But I only tested it with our claude-code wrapper: https://github.com/juspay/vertex

[stephen-melsom-s1]

Bumping this discussion. I tried using Zed + Claude Code + Bedrock again today without any success. I can confirm that Claude Code is configured correctly as I can utilize Claude Code IDE sessions with no problems. When I create a new Claude Code thread in Zed, I'm directed to AWS to authorize usage, which I accept. Then, when I send a message in the thread it seems to just hang indefinitely with no insight as to what's happening.

[suharshs]

For Vertex AI, I was able to get this working by simply adding the correct environment variables to my ~/.claude/settings.json

i.e.

{
  "alwaysThinkingEnabled": true,
  "env" : {
    "CLAUDE_CODE_USE_VERTEX": "1",
    "CLOUD_ML_REGION": "us-east3",
    "ANTHROPIC_VERTEX_PROJECT_ID": "abc-123"
  }
}

Then opening Zed in any way works fine.