Onsite AI Guide
How to connect Claude to Gmail, and what it can actually do
I do this for a living, in other people’s offices, about once a week. Here is the whole thing including the two parts that trip everybody up: the permission screen that reads scarier than it is, and the admin wall that can eat an hour if you don’t know about it in advance.
Checked August 2026. This stuff moves. If you find something here that’s gone stale, tell me and I’ll fix it.
Before you start
- You don’t need a paid plan. Google connectors work on the free tier. Anybody telling you otherwise is selling something.
- Know which account you’re connecting. If you’re signed into a personal Gmail and a work Workspace account in the same browser, it will grab whichever one is active. Check before you click.
- If you’re on Google Workspace, find out now whether you’re the admin. This is the single biggest time-waster and it’s covered below.
The steps
1. Open connectors in Claude’s settings
You’re looking for the connectors or integrations area. Google shows up as a set: Gmail, Calendar and Drive are separate toggles, and you can connect one without the others.
2. Pick Gmail and sign in
Standard Google sign-in. Nothing unusual happens here.
3. Read the consent screen. Actually read it.
This is where people flinch, so I want to prepare you for it rather than let it surprise you.
Google’s consent screen lists the permissions being requested, and the wording is broad because Google writes one screen for every app that ever asks. It will mention reading, composing and sending mail. People read the word “send” and stop.
What matters is what the application actually does with what it’s granted. Claude reads and searches your mail, and it writes drafts. It has no send function. Not “it’s disabled by default,” not “we promise not to.” Drafts land in your drafts folder and sit there until a human opens one and presses send.
Do this before you approve, not after: open myaccount.google.com/permissions in another tab. That’s the page where you revoke access. Knowing where the off switch is before you turn something on is a habit worth having with any tool that touches your mail.
4. Test it immediately, on something real
Don’t take my word that it worked. Ask it something only your actual inbox could answer:
Find my last email from [a real customer’s name].
If that comes back right, you’re connected. If it comes back empty and you know the email exists, you’ve almost certainly hit the admin wall below.
The admin wall, which is what actually goes wrong
If your business runs on Google Workspace, whoever set it up may have restricted which outside apps can connect. When that’s switched on, the connection either fails or you get a message about your administrator needing to approve the app.
Only a Workspace administrator can clear this. It’s done in the admin console, not in Claude, and not by you unless you’re the admin.
The part worth knowing: Google’s own documentation says the change “can take up to 24 hours but typically happens more quickly.” I mention this because a lot of guides confidently say fifteen minutes. That number is wrong, and if you plan a work session around it you will be sitting there waiting.
So find out who your admin is before you sit down to do this, not during.
What it can and can’t do once it’s connected
It can
- Search and read your mail when you ask it to
- Summarise a long thread
- Draft a reply in your own voice, if you’ve taught it your voice
- Find the quote you sent someone in March
- Pull together what came in overnight
It can’t
- Send email
- Delete anything
- Read your mail when you’re not asking it to. It isn’t sitting there watching.
- Do any of this after you revoke access
Calendar is the one where it can make changes, which is worth knowing before you connect that one too. Different connector, different answer.
The habit that matters more than any of this
Allow always for anything that only reads. Allow once, every time, for anything that writes, sends, books or deletes.
I say that three times over the course of a day when I set this up for someone, because it’s the one rule that keeps you out of trouble long after I’ve left. Reads are safe to wave through. Anything that changes something in the world gets a fresh look, every time, forever.
The related habit: let it go and get the email, don’t paste the email in. On a personal plan with model-improvement switched on, content you paste in yourself is treated differently from content it retrieves. The data page has the full picture, including the parts that don’t flatter me.
How to disconnect
Two places, and you should know both:
- In Claude: remove the connector in settings. This stops Claude using it.
- In Google: myaccount.google.com/permissions → find Claude → remove access. This is the definitive one. It revokes the token at the source, and it works whether or not you can still get into the other account.
Do the second one if you’re ever actually worried. It’s two clicks and it’s absolute.
Or I can just come and do it
I set this up in person for businesses all over the Houston area. One day, $1,000, and your team knows how to use it by the time I leave. If you’d rather do it yourself off the back of this page, genuinely, go ahead. That’s what it’s for.