To keep Calendly secure and reliable, we're updating the public IP addresses used by our website and APIs on February 18, 2025.
If your company uses a firewall or similar security tool that requires IP allowlisting, follow the steps below to avoid service interruptions.
Allowlist the new IP addresses
- Go to our developer IP address list.
- Update your firewall or security settings to include all IP addresses listed.
Test your setup
After updating your settings, test Calendly to confirm everything works as expected.