How to connect Trello and Slack users ?

[Julienepigenelabs]

When I mention someone on trello, I want the butler to post a message on slack that describe it and that is mentionning my trello user but with the slack mentionning for him to be notified on slack. 
How can I achieve that ? 

[Soumyadeep Mandal - SaM]

Hi @Julienepigenelabs ,

Welcome to the community!

You can have a look at these links

https://trello.com/en/platforms/slack

https://zapier.com/apps/slack/integrations/trello

https://automate.io/integration/slack/trello

https://slack.com/intl/en-in/help/articles/231967387-Trello-for-Slack

Regards,

Soumyadeep