The widget calls this endpoint on load to discover server-side configuration. Useful if you’re building a custom UI and need the same runtime flags.
Auth: client key.

Response

Typical custom-UI flow

  1. Fetch widget-config on load.
  2. If captcha_required, load reCAPTCHA v3 with recaptcha_site_key and obtain a token before each chat call (X-Captcha-Token header, or captcha_token on WebSocket frames).
  3. Respect hide_branding_allowed when deciding whether to show attribution.