Do you support Claude subscription auth (Claude Pro/Max)

Yes — via setup-token. OpenClaw no longer reuses Claude Code CLI OAuth tokens; use a setup-token or an Anthropic API key. Generate the token anywhere and paste it on the gateway host. See Anthropic and OAuth.
Note: Claude subscription access is governed by Anthropic’s terms. For production or multi‑user workloads, API keys are usually the safer choice.