Jovo - 🗣 Build cross-platform apps for Alexa and Google Home
Astra by Cesbo - Talk to Alexa anywhere, from your iPhone
API to bot - Convert your API to Alexa skill or Google Home app in 5 mins
Reverb - Use Alexa on your Mac, iPhone and Android
Alexa for Business - Using Amazon Alexa’s voice enabled devices for workplaces
Amazon Blueprints - Create your own Alexa Skill in minutes