BBVAOpen4U
Four of the most widely used tools for creating simple conversational chatbots are API.ai, Motion.ai, Smooch.io and Gupshup.io, whilst Chatfuel is an excellent alternative. The idea is to be able to launch bots on messaging platforms and social networks, such as Facebook Messenger, Telegram, Slack and WeChat, in three or four steps.
Arpatech
The graph of popularity for the messaging apps is increasing day by day and becoming a hot trend for the e-commerce business owners as they are getting benefit from it. Social media platform and messaging apps provide a lot of marketing and user interaction opportunities for the business owners.
Guillaume Bardet- Working on Qlearly.com/beta
One of the most common one :)
Ben Tossell- newCo
Botkit is pretty awesome too +1
Vinh Pham- 🤤
Have you looked at Botkit yet? It gives you everything you need, aside from hosting, to build your own bots for Slack, and it's free and open source.