Connect Google Calendar to ChatGPT

To use Google Calendar in ChatGPT, connect your Google Calendar account in Manyplug and add Manyplug to ChatGPT once. ChatGPT then gets 8 Google Calendar tools, for example: “List calendars”, “Events”, and “Event”. It takes about 5 minutes and works on the free plan.

Connect Google Calendar Free plan, no card

1. Connect Google Calendar in Manyplug

Click “Connect Google Calendar” and sign in on Google Calendar’s own page. Manyplug never sees your password.

2. Add Manyplug to ChatGPT

Needs developer mode (Plus, Pro, Business, Enterprise, Edu).

Open Settings → Apps & Connectors → Advanced settings and turn on Developer mode.
Go back to Apps & Connectors and click Create.
Name: Manyplug, MCP server URL: your URL, authentication: OAuth. Confirm you trust the app.
Sign in to Manyplug and allow access. In a chat, pick Manyplug under “+” → More.

Full guide: ChatGPT

3. Ask ChatGPT

What is on my calendar tomorrow?
Find a free hour on Thursday afternoon and book “Call with Alex”.
Move my 3 pm meeting today to Friday at the same time.
How many hours of meetings did I have last week?

What ChatGPT can do in Google Calendar

Each action can be turned off per account, and changes can wait for your OK.

Action	Access
List calendars Calendars of the account and your access to them.	Reads
Events Events in a time range, by start time. Optional text search.	Reads
Event One event with its description, attendees and their responses.	Reads
Create an event Creates an event. Attendees get invitations only when asked to.	Makes changes
Quick add Creates an event from a short English phrase, e.g. “Lunch with Ann tomorrow 1pm”.	Makes changes
Update an event Changes only the given details: time, title, place or attendees.	Makes changes
Delete an event Deletes (cancels) an event.	Risky
Free/busy When one or more calendars are busy in a time range, to find a free slot.	Reads

Questions

Can I connect two Google Calendar accounts to ChatGPT?

Yes. Connect each one in Manyplug under its own name, for example Work and Personal. ChatGPT can use one of them or all at once.

Will ChatGPT change anything in Google Calendar without asking?

By default these actions wait for your approval before they run: “Delete an event”. Other changes follow your rules, which you can make stricter per account.

Do I need an official Google Calendar MCP server for this?

No. Manyplug connects to Google Calendar itself (you sign in on Google Calendar’s page) and gives ChatGPT the tools through one MCP address, together with your other services.

Is it free to connect ChatGPT to Manyplug?

Yes. New workspaces get 14 days of Pro free, then the free plan keeps going with 150 actions a month and up to 3 connected accounts. No card needed. Paid plans start at $5 a month.

Does ChatGPT see my passwords or API keys?

No. Keys are entered on Manyplug’s own pages, stored encrypted with a separate key per account, and the AI only receives tool results.

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