There are 2 repositories under keeloq topic.
Flipper Zero Unleashed Firmware
STM32 HAL library for reading and sending code for Radio frequency (RF) barrier (Came, Nice) simple code 12, 24 bit and HCS301 with keeloq 66 bit.
An open source application for programming HCS301 EEPROM Code Hopping. Support keeloq key generation from manufacturer code for Simple, Normal and Secure learning algorithm.
C implementation of KeeLoq algorithm for embedded device.
An implementation of KeeLoq encryption/decryption in Go programming language
Arduino RF rolling code keeloq receiver
IoT Cryptography Python Notebook with KeeLoq and LEA implementations