# Inbox & calendar agent

> “Let an agent use my Gmail and Calendar”. Ranked by expert consensus and what people use now; affiliate links never change the order.

An inbox agent needs two things: access to your mail and calendar, and a clear limit on what it may send without asking. Claude connects to Gmail and Google Calendar, so it can summarise threads, draft replies and suggest meeting times you approve. Gmail and Google Calendar are free with a Google account and include Gemini drafting and booking pages. Superhuman ($33 a month and up) is for people who live in email and want a faster keyboard-driven inbox with AI drafts on top.

Last checked: 2026-10-04

## Ranking

1. **[Claude](https://suiteintent.com/t/claude?m=GB)**: Anthropic's AI assistant, with MCP connections. · Best for: Connecting AI to your own tools with MCP · Free plan
2. **[Google Calendar](https://suiteintent.com/t/google-calendar?m=GB)**: Google's online calendar. · Best for: Client bookings without a separate tool · Free plan
3. **[Gmail](https://suiteintent.com/t/gmail?m=GB)**: Google's email service. · Best for: Email next to Google Calendar and Drive · Free plan
4. **[Superhuman](https://suiteintent.com/t/superhuman?m=GB)**: A fast email app for Gmail and Outlook. · Best for: Founders working through email all day · From $33/mo

## Side by side

| Tool | Price | Ease of use (1-5) | Team size |
| --- | --- | --- | --- |
| Claude | Free plan | 5 | solo, small team, growing team, large team |
| Google Calendar | Free plan | 5 | solo, small team, growing team, large team |
| Gmail | Free plan | 5 | solo, small team, growing team, large team |
| Superhuman | From $33/mo | 4 | solo, small team, growing team |

## Why these picks

- Independent reviews: [Zapier](https://zapier.com/blog/best-email-app/) (Last checked: 2026-10-02)
- Prices last checked: 2026-10-04
- Ranked by expert consensus and what people use now; affiliate links never change the order.

## Head to head

- [ChatGPT vs Claude: which helps you prep interviews](https://suiteintent.com/compare/chatgpt-vs-claude)
- [Claude vs Gemini: careful reader or Google helper](https://suiteintent.com/compare/claude-vs-gemini)
- [Claude vs Perplexity: deep thinker or fast answers](https://suiteintent.com/compare/claude-vs-perplexity)
- [Superhuman vs Shortwave: the faster inbox](https://suiteintent.com/compare/superhuman-vs-shortwave)

## MCP setups

- [Let an agent use Gmail and Calendar](https://suiteintent.com/mcp/agent-gmail-calendar)
- [Let Claude take actions in any app via Zapier](https://suiteintent.com/mcp/automate-apps-zapier-mcp)
- [Connect AI to HubSpot](https://suiteintent.com/mcp/claude-read-update-crm)
- [Let Claude create invoices and payment links in Stripe](https://suiteintent.com/mcp/claude-stripe-invoices)

## Questions

### Is it safe to give an AI assistant access to my email?

Treat it like giving a new assistant your login: grant only what the job needs. Start with read and draft access, so Claude prepares replies and you press send yourself. Review which connections are switched on and remove any you no longer use. Keep client data that must stay confidential out of the agent's reach until you trust the setup.

### Can I try an inbox agent for free?

Claude has a free plan, and Gmail and Google Calendar are free with a Google account. That is enough to test summaries, drafts and scheduling on your own inbox. Superhuman is paid only, from $33 a month. Paid Claude plans add more usage, which matters once you run the agent on a busy inbox every day.

### Gmail already has Gemini. Do I need Claude or Superhuman too?

Gemini inside Gmail helps you draft replies and summarise long threads where you already work. Claude can look across your inbox and calendar together, for example to find a free slot and draft the reply that proposes it. Superhuman changes how you process mail: a split inbox, reminders on threads that need a reply and send scheduling. Try Gemini first, and add the others if you still spend hours on email.

### How do I stop the agent sending emails I didn't approve?

Ask it to save drafts and hold every email for your approval, then check the drafts folder once or twice a day. For calendar invites, have it propose times in a message instead of creating events directly. Write your rules into the instructions: who it may reply to, which tone, which topics to leave for you. Widen its permissions only after a few weeks without mistakes.

### Does an inbox agent work for a whole team?

Each person connects their own Gmail and Calendar, so the agent sees only that person's data. Google Workspace gives your team email on your own domain with shared calendars and booking pages. Claude, Gmail and Google Calendar all scale from solo use to large teams. For shared inboxes, agree who reviews the agent's drafts before anything goes out.