CLAUDE_CODE_HOST_GATEWAY_LINEAGE

Updated October 14, 2026 by Alex Sorokoletov

CLAUDE_CODE_HOST_GATEWAY_LINEAGE is a Claude Code environment variable. Added between v2.1.269 and v2.1.283 and still present in v2.1.295. It is not in the official reference.

Status	Present in v2.1.295
Added	Added between v2.1.269 and v2.1.283
Category	Other
Official docs	Not listed

How to set it

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

export CLAUDE_CODE_HOST_GATEWAY_LINEAGE=<value>
claude

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

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

Related variables

CLAUDE_CODE_GATEWAY_HINT_HEADERS
CLAUDE_CODE_HOST_PLATFORM: Override platform detection: win32, darwin, linux.
CLAUDE_CODE_USE_GATEWAY: Routes traffic through an Anthropic-operated gateway (with loopback and log-level tuning).
CLAUDE_CODE_WORKSPACE_HOST_PATHS: Specifies host-side filesystem paths that should be mapped or accessible within a workspace context.
CLAUDE_AI_HOST
CLAUDE_ARTIFACT_HOST_GRANT
CLAUDE_CODE_AUTOUPDATER_DISABLED_BY_HOST
CLAUDE_CODE_HOST_CREDS_FILE

Frequently asked questions

Which Claude Code version has CLAUDE_CODE_HOST_GATEWAY_LINEAGE?

Added between v2.1.269 and v2.1.283 and still present in v2.1.295.

How do I set CLAUDE_CODE_HOST_GATEWAY_LINEAGE?

Export it before starting Claude Code (export CLAUDE_CODE_HOST_GATEWAY_LINEAGE=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.