You can now build bots for Facebook Messenger.

At its F8 developer conference, Facebook unveiled a new Messenger platform that allows developers to build bots inside Facebook Messenger.

Bots are hot; they could even be the future.

At its a heart, a bot is nothing more an an app that runs automated tasks based on input. So “run backup” could have a bot that backs up your data to Dropbox or whatever.

The modern era of chat bots work with chat apps – including Messenger – and use real language to determine what task to complete.

In the demo early in his keynote, Facebook CEO Mark Zuckerberg showed how bots inside Messenger could deliver news to users using CNN.

The CNN demo looks similar to the mobile app that news site Quartz launched earlier this year. Users are delivered a digest of what’s happening in the world. Users can then ask the bot for more information about specific news stories.

Zuckerberg also showed off a demo with 1-800-Flowers, where users can order flowers from Messenger, without having to actually call.

On stage at F8, David Marcus — Facebook's vice president of messaging products — dismissed the idea that bots were simply command line interfaces. "We think that the combination of UI and conversation is what is going to make this work."

He also said pointed out examples of bots that go beyond commerce and media. One app, Poncho, can help users know whether they need an umbrella before going outside.

Ad products coming

Although Marcus reiterated that users would have control over what bots could do and how they could message users, that doesn't mean there isn't an ad revenue stream in this for Facebook.

Marcus says that soon developers will be able to buy Facebook ads that will take users directly to their bot.