CLAUDE_CODE_OAUTH_REFRESH_TOKEN

Updated October 13, 2026 by Alex Sorokoletov

CLAUDE_CODE_OAUTH_REFRESH_TOKEN is a Claude Code environment variable: OAuth refresh token. Present since v2.1.69 or earlier and still present in v2.1.294. It is listed in the official reference.

Status	Present in v2.1.294
Added	Present since v2.1.69 or earlier
Category	Authentication
Official docs	Listed

How to set it

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

export CLAUDE_CODE_OAUTH_REFRESH_TOKEN=<value>
claude

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

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

Related variables

CLAUDE_CODE_OAUTH_TOKEN: Pre-configured OAuth access token.
CLAUDE_CODE_OAUTH_TOKEN_FILE_DESCRIPTOR: File descriptor to read OAuth token from.
CLAUDE_CODE_SDK_HAS_OAUTH_REFRESH: Signals to the Claude Code runtime that the SDK caller has already provided an OAuth refresh token.
CLAUDE_BRIDGE_OAUTH_TOKEN
ANTHROPIC_AUTH_TOKEN: Alternative bearer token; takes priority over API key.
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_ENABLE_TOKEN_USAGE_ATTACHMENT: Attach token usage info to messages.

Frequently asked questions

What does CLAUDE_CODE_OAUTH_REFRESH_TOKEN do?

OAuth refresh token

Which Claude Code version has CLAUDE_CODE_OAUTH_REFRESH_TOKEN?

Present since v2.1.69 or earlier and still present in v2.1.294.

How do I set CLAUDE_CODE_OAUTH_REFRESH_TOKEN?

Export it before starting Claude Code (export CLAUDE_CODE_OAUTH_REFRESH_TOKEN=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.