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3 pages for claude_code_client_key_passphrase.
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Environment variables
Claude Code CLI · in the page
env-vars
…| | `CLAUDE_CODE_CLIENT_KEY_PASSPHRASE` | Passphrase for encrypted CLAUDE\_CODE\_CLIENT\_KEY (optional)…
Monitoring
Claude Code CLI · in the page
monitoring-usage
…`CLAUDE_CODE_CLIENT_CERT`, `CLAUDE_CODE_CLIENT_KEY`, and optionally `CLAUDE_CODE_CLIENT_KEY_PASSPHRASE`. See [Network configuration](/docs/en/network-config#mtls-authentication)…
Enterprise network configuration
Claude Code CLI · in the page
network-config
…ient-key.pem # Optional: Passphrase for encrypted private key export CLAUDE_CODE_CLIENT_KEY_PASSPHRASE="your-passphrase" ``` Claude Code reads the certificate and key files at startup and re-reads t…