Claude API key

Item	Behavior
Use for	A first-party Anthropic API key
Configuration	A Radius-owned isolated `CLAUDE_CONFIG_DIR`
Credentials	`ANTHROPIC_API_KEY`
Isolation	Ambient Claude and cloud-provider credentials do not take over

How it works

Select API Key and save your Anthropic key.
Radius stores the key in encrypted credential storage.
Radius removes ambient Anthropic, Bedrock, Vertex AI, and Foundry authentication variables, then supplies the saved key.
Claude discovers and runs models with the isolated configuration.

Project and local settings can still affect agent behavior. They cannot replace the selected authentication method.

Use Claude CLI for AWS Bedrock. The API-key method is specifically for an Anthropic API key.

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