CLAUDE_CODE_SKIP_FOUNDRY_AUTH

Updated October 13, 2026 by Alex Sorokoletov

CLAUDE_CODE_SKIP_FOUNDRY_AUTH is a Claude Code environment variable: Skip Foundry authentication. Present since v2.1.69 or earlier and still present in v2.1.294. It is listed in the official reference.

How to set it

For one session, export it in the shell that starts Claude Code:

export CLAUDE_CODE_SKIP_FOUNDRY_AUTH=<value>
claude

To apply it to every session, add it to the env object of a settings file:

// ~/.claude/settings.json
{
  "env": {
    "CLAUDE_CODE_SKIP_FOUNDRY_AUTH": "<value>"
  }
}

Release notes that mention it

• 165 Environment Variables in Claude Code 2.1.69 — What Changed in 50 Versions

Related variables

• ANTHROPIC_FOUNDRY_AUTH_TOKEN
• CLAUDE_CODE_SKIP_ANTHROPIC_AWS_AUTH: Skips credential resolution for the Anthropic AWS provider.
• CLAUDE_CODE_SKIP_ANTHROPIC_GOOGLE_CLOUD_AUTH: The skip-auth companion to the toggle above, grouped in the auth-bypass list with SKIP_BEDROCK_AUTH, SKIP_VERTEX_AUTH, SKIP_FOUNDRY_AUTH, SKIP_ANTHROPIC_AWS_AUTH, and SKIP_MANTLE_AUTH.
• CLAUDE_CODE_SKIP_BEDROCK_AUTH: Skip Bedrock authentication.
• CLAUDE_CODE_SKIP_MANTLE_AUTH: Skips Mantle authentication.
• CLAUDE_CODE_SKIP_VERTEX_AUTH: Skip Vertex AI authentication.
• ANTHROPIC_FOUNDRY_API_KEY: Foundry API key.
• ANTHROPIC_FOUNDRY_BASE_URL: Custom Foundry endpoint.

Frequently asked questions

All variables, searchable: Claude Code environment variables.