It's May 6th 2024. The api code is not available from now...
Only possible if you have more than 10 domains or a Discount Domain Club subscription! See Reddit
Slightly modified version of godaddy.sh from Nazar78. Compatible with OpenWRT.
Bash required to run the script : # opkg install bash
http://teanazar.com/2016/05/godaddy-ddns-updater/
All credits goes to Nazar78 for his great work!