CLAUDE_CODE_CLIENT_KEYPM

Updated October 14, 2026 by Alex Sorokoletov

CLAUDE_CODE_CLIENT_KEYPM is a Claude Code environment variable. Removed between v2.1.245 and v2.1.247, so current releases ignore it. It is not in the official reference.

Status	Removed between v2.1.245 and v2.1.247
Added	Added between v2.1.241 and v2.1.245
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_CLIENT_KEYPM=<value>
claude

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

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

Related variables

CLAUDE_CODE_CLIENT_CERT: Path to client certificate for mTLS.
CLAUDE_CODE_CLIENT_KEY: Path to client private key.
CLAUDE_CODE_CLIENT_KEY_PASSPHRASE: Passphrase for encrypted client key.
CLAUDE_CODE_OAUTH_CLIENT_ID: Custom OAuth client ID.
CLAUDE_CODE_DESIGN_OAUTH_CLIENT_ID
ANTHROPIC_API_KEY: Primary API key for Claude API.
ANTHROPIC_AUTH_TOKEN: Alternative bearer token; takes priority over API key.
CLAUDE_AI_AUTHORIZE_URL: Authorization URL endpoint.

Frequently asked questions

Which Claude Code version has CLAUDE_CODE_CLIENT_KEYPM?

Removed between v2.1.245 and v2.1.247, so current releases ignore it.

How do I set CLAUDE_CODE_CLIENT_KEYPM?

Export it before starting Claude Code (export CLAUDE_CODE_CLIENT_KEYPM=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.