Hi Vapi Team My name is Zahir, and I’m working on the Carebells project based in Germany. We are currently integrating Vapi tools into our assistant. Frontend (live): https://test.carebells.de/ Backend (development): Currently running on http:// (not HTTPS) We are unable to save a tool configuration when the server URL uses http://. The dashboard appears to reject non-HTTPS endpoints. Since this is blocking our integration, could you please urgently clarify: Does Vapi strictly require HTTPS for all tool endpoints? Is there any workaround for development environments? Are self-signed certificates supported, or must the SSL certificate be publicly trusted? This is time-sensitive for our deployment schedule, so we would greatly appreciate a prompt response. Thank you in advance. Best regards, Zahir Carebells Project

Hi there, Thank you for your message. Our team is currently out of the office. We operate Monday through Friday, from 9:00 AM to 8:00 PM Pacific Standard Time (PST). We’ll get back to you as soon as possible during our normal business hours. If your message is urgent, please mark it accordingly or include “URGENT” in the subject line, and we’ll do our best to respond promptly. Warm regards, Vapi Customer Support Team