# Connected apps

Merlin can use [Gmail](https://atmerlin.com/docs/apps/gmail), [Calendar](https://atmerlin.com/docs/apps/calendar), [GitHub](https://atmerlin.com/docs/apps/github), [Last.fm](https://atmerlin.com/docs/apps/lastfm) and a [browser](https://atmerlin.com/docs/apps/browser) for you. See them all at [atmerlin.com/apps](https://atmerlin.com/apps).

## Linking

Open **Apps** on Home, choose the app and follow the steps.

You can link several Gmail, Calendar and GitHub accounts, such as a personal one and a work one. Merlin reads from all of them, and asks which one to use before changing anything.

## Sharing in groups

Only you can use your apps through Merlin. In each group, you can let other people use one of your apps, at one of these levels:

| Setting                      | What others can get                                                                   |
| ---------------------------- | ------------------------------------------------------------------------------------- |
| Off                          | Nothing                                                                               |
| Group answers only           | Answers that don't single anyone out, like "Tuesday 7 to 9 works for all five of you" |
| Facts about me               | Yes or no answers, like whether you're busy at 3pm                                    |
| My content, with my approval | Your emails or events, after you approve each time                                    |

Change this in the chat's settings on Home. The same settings show each time Merlin used your apps in that chat, and who asked.

## Confirming

Before Merlin sends an email, adds an event, posts a comment or changes anything else, it shows what it's about to do with **Confirm** and **Cancel** buttons. Only you can press them, even if someone else asked. After ten minutes the request is cancelled.

## Unlinking

Unlink an account in its app on Home. Merlin deletes everything it had from that account.

## What Merlin can't do with any app

- Use an app you haven't linked, or one you haven't shared in that chat
- Change anything without your confirmation
- Link or unlink apps, or change these settings. Merlin can send you the link to do it yourself.
- Type passwords or verification codes