Use with OpenRouter, Bedrock, Vertex, or Vercel

Claude Code in the Paradev terminal works with these providers when the variables below are set. Other agents, such as Codex, read their own provider settings. The chat interface has its own setup flow.

Chat interface

1. Open the model picker at the bottom of the chat

2. Click the key icon next to Anthropic

3. Select Use API key

4. Enter the environment variables for your provider (one per line, VAR_NAME=value format)

5. Click Save settings

See the provider sections below for the specific variables to use.

Terminal

Set the variables below in your shell profile, or per workspace under Settings > Env.

Vercel AI Gateway

Route requests through the Vercel AI Gateway.

ANTHROPIC_BASE_URL=https://ai-gateway.vercel.sh
ANTHROPIC_AUTH_TOKEN=your-vercel-ai-gateway-api-key
ANTHROPIC_API_KEY=

OpenRouter

Use many models through one API with OpenRouter.

ANTHROPIC_BASE_URL=https://openrouter.ai/api
ANTHROPIC_AUTH_TOKEN=your-openrouter-api-key
ANTHROPIC_API_KEY=

AWS Bedrock

Use Claude models through your AWS account with Amazon Bedrock.

Ensure your AWS credentials are configured via aws configure, environment variables, or SSO profile.

CLAUDE_CODE_USE_BEDROCK=1
AWS_REGION=us-east-1

Optionally override the region for the small/fast model (Haiku):

ANTHROPIC_SMALL_FAST_MODEL_AWS_REGION=us-west-2

ANTHROPIC_DEFAULT_OPUS_MODEL=us.anthropic.claude-opus-4-6-v1
ANTHROPIC_DEFAULT_SONNET_MODEL=us.anthropic.claude-sonnet-4-6
ANTHROPIC_DEFAULT_HAIKU_MODEL=us.anthropic.claude-haiku-4-5-20251001-v1:0

For full setup details including IAM configuration, see the Claude Code on Amazon Bedrock docs.

Google Vertex AI

Run Claude models on Google Cloud Vertex AI.

Authenticate with gcloud auth application-default login, then set:

CLAUDE_CODE_USE_VERTEX=1
CLOUD_ML_REGION=global
ANTHROPIC_VERTEX_PROJECT_ID=your-project-id

ANTHROPIC_DEFAULT_OPUS_MODEL=claude-opus-4-6
ANTHROPIC_DEFAULT_SONNET_MODEL=claude-sonnet-4-6
ANTHROPIC_DEFAULT_HAIKU_MODEL=claude-haiku-4-5@20251001

For full setup details including IAM configuration, see the Claude Code on Google Vertex AI docs.

Microsoft Foundry (Azure)

Use Claude models via Microsoft Foundry.

Authenticate with an API key or Microsoft Entra ID (az login), then set:

CLAUDE_CODE_USE_FOUNDRY=1
ANTHROPIC_FOUNDRY_RESOURCE=your-resource-name

# If using API key authentication:
ANTHROPIC_FOUNDRY_API_KEY=your-azure-api-key

ANTHROPIC_DEFAULT_OPUS_MODEL=claude-opus-4-6
ANTHROPIC_DEFAULT_SONNET_MODEL=claude-sonnet-4-6
ANTHROPIC_DEFAULT_HAIKU_MODEL=claude-haiku-4-5

For full setup details including RBAC configuration, see the Claude Code on Microsoft Foundry docs.

Other Anthropic-Compatible Providers

Any provider that exposes an Anthropic-compatible API (such as LiteLLM) can be used:

ANTHROPIC_BASE_URL=https://your-provider.example.com
ANTHROPIC_AUTH_TOKEN=your-api-key
ANTHROPIC_API_KEY=

For LLM gateway configuration details, see the Claude Code LLM gateway docs.