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Google Calendar

Display, create and modify Google calendar events

Open documentation ↗
OAuthHTTPSNo CORSCalendar

Verified 4 days ago: 100% uptime

API key

OAuth flow

HTTPS

Supported

Browser calls

No, needs a proxy

Status

Live · 100/100

What our checks found

Health score
100/100
Reliability
100%
Average latency
1174ms

Last checked 2026-09-18. Measured independently, not self-reported by the provider.

How to call it

A starting template for Google Calendar. Replace ENDPOINT with the path from the official documentation, which we link above rather than guess at.

# Uses OAuth. Exchange your credentials for an access token first.
curl -s "https://developers.google.com/ENDPOINT" \
  -H "Authorization: Bearer YOUR_ACCESS_TOKEN" \
  -H "Accept: application/json"

This API does not send CORS headers, so a browser will block a direct call from your front end. Call it from your server, or put a small proxy in front of it.

Where this listing comes from

Aggregated from 2 public sources (public-api-lists, public-apis), then normalised and checked by us. If something here is wrong, tell us and we will correct it.

Other Calendar APIs

See all 24

Byabbe

Calendar

Seach histories from wikipedia for a particular day

No keyCORSHTTPS

Verified 4 days ago: 100% uptime

View Details

caldays

Calendar

Public holidays for 195+ countries

No keyCORSHTTPS

Verified 4 days ago: 100% uptime

View Details

The Calendar

Calendar

Public holidays for US states and 30 countries plus sports and finance calendars as static JSON

No keyCORSHTTPS

Verified 4 days ago: 100% uptime

View Details

UK Bank Holidays

Calendar

Bank holidays in England and Wales, Scotland and Northern Ireland

No keyCORSHTTPS

Verified 4 days ago: 100% uptime

View Details

Nager.Date

Calendar

Public holidays for more than 90 countries

No keyHTTPS

Verified 4 days ago: 100% uptime

View Details

Google Calendar — common questions

Answered from what our own scheduled checks found, not from the provider's marketing.

Is Google Calendar free to use?

Google Calendar is listed in our free catalogue, but it requires OAuth, so you will need to register before your first call. Providers frequently reserve higher limits and commercial use for paid plans.

Does Google Calendar need an API key?

Google Calendar uses OAuth rather than a simple key, so you register an application and complete an authorisation flow before making calls. That is more setup than a key, and it is why OAuth APIs are harder to try quickly.

Can I call Google Calendar from browser JavaScript?

Not directly. Google Calendar did not return CORS headers when we checked, so the browser will block your page from reading the response even though the request itself succeeds. Call it from a server, or put a small proxy in front of it.

Is Google Calendar still working?

Yes, as of 2026-09-18. Our automated check reached Google Calendar and recorded a 100% reliability score with a median response time of 1174 ms. We re-check on a schedule, and this page updates with the result.

Is Google Calendar available over HTTPS?

Yes. Google Calendar serves over HTTPS, so you can call it from a secure page without triggering a mixed-content block.