A page where your client connects their accounts into the profile ({id} may be its external_id). redirect_url's origin must be allowed in /v1/connect/redirect-origins (422 redirect_origin_not_allowed); state comes back unchanged. headless: true (for accounts Mulaichat approved, else 403 headless_not_approved; redirect_url required, else 400 redirect_url_required) answers start_urls for the platforms that can connect now (none: 422 platform_not_supported): the client goes straight to the platform's login and back to redirect_url without a Mulaichat page, and a Facebook login connects every Page it grants. Tell your clients their account connects through Mulaichat: the platform's consent screen names Mulaichat. Requires the write scope. Owner key or session only: a profile key gets 403 owner_key_required.