CLAUDE_CODE_SDK_HAS_OAUTH_REFRESH

Updated October 13, 2026 by Alex Sorokoletov

CLAUDE_CODE_SDK_HAS_OAUTH_REFRESH is a Claude Code environment variable: Signals to the Claude Code runtime that the SDK caller has already provided an OAuth refresh token. Added between v2.1.100 and v2.1.104 and still present in v2.1.294. It is not in the official reference.

Status	Present in v2.1.294
Added	Added between v2.1.100 and v2.1.104
Category	Authentication
Official docs	Not listed

How to set it

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

export CLAUDE_CODE_SDK_HAS_OAUTH_REFRESH=<value>
claude

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

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

Release notes that mention it

Related variables

CLAUDE_CODE_SDK_HAS_HOST_AUTH_REFRESH
CLAUDE_CODE_OAUTH_REFRESH_TOKEN: OAuth refresh token.
CLAUDE_CODE_CUSTOM_OAUTH_URL: Custom OAuth endpoint URL.
CLAUDE_CODE_DISABLE_AUTH_REFRESH_LOCK: Turns off the lock that coordinates a GCP or AWS credential refresh across processes.
CLAUDE_CODE_OAUTH_CLIENT_ID: Custom OAuth client ID.
CLAUDE_CODE_OAUTH_SCOPES: OAuth scopes for refresh token.
CLAUDE_CODE_OAUTH_TOKEN: Pre-configured OAuth access token.
CLAUDE_CODE_OAUTH_TOKEN_FILE_DESCRIPTOR: File descriptor to read OAuth token from.

Frequently asked questions

What does CLAUDE_CODE_SDK_HAS_OAUTH_REFRESH do?

Signals to the Claude Code runtime that the SDK caller has already provided an OAuth refresh token.

Which Claude Code version has CLAUDE_CODE_SDK_HAS_OAUTH_REFRESH?

Added between v2.1.100 and v2.1.104 and still present in v2.1.294.

How do I set CLAUDE_CODE_SDK_HAS_OAUTH_REFRESH?

Export it before starting Claude Code (export CLAUDE_CODE_SDK_HAS_OAUTH_REFRESH=value), or add it to the "env" object in ~/.claude/settings.json to apply it to every session.

All variables, searchable: Claude Code environment variables.