If your current file is expired or you need a new one, TeamSpeak offers several tiers based on your needs:
The short answer is . TeamSpeak does not offer an API to automatically download new license files for security reasons. However, you can automate:
: Your server must have TCP port 443 (outgoing) open to verify the license with TeamSpeak's master servers. Without this, the license will fail to validate even if the file is present. How to host your own TeamSpeak server - IONOS