Connect Any App to Claude Cowork (Connectors Explained)

Claude can pull your emails, check your calendar, and post to Slack, all from one chat window. Connectors are how it happens.
They're direct integrations between Cowork and your other apps. Go to customize, click connectors, and you'll see the list: Gmail, Google Calendar, Slack, QuickBooks, tons more. Once connected, Claude can read from and write to those apps automatically. (Your apps finally talk to each other, and you didn't have to build a single Zapier flow.)
Here's the 30-second version:
A Real Workflow
My morning briefing pulls from Calendar and Gmail, then sends the summary to Slack. All through connectors. One prompt touches three apps and I didn't configure anything beyond clicking "connect" three times.
The Hack Nobody Mentions
If the app you need isn't in Anthropic's list, add a custom MCP server. Tools like Zapier MCP let you bridge almost any app into Cowork. So there's really no excuse for Claude not being plugged into your entire workflow.
Connectors turn Claude from a chatbot into an operating system for your work.
This is part 15 of the 20-part Cowork series. All 20 concepts are in the full guide.
Connect one app today. Start with the one you check compulsively. You know the one.
See the 30-Day In-Product AI Assistant Sprint
One AI assistant, inside one existing SaaS workflow, designed, built, evaluated, and handed off in 30 days.
See the sprint