# The Marketing Calendar API stops working

Calls to /calendar/v1/* on HubSpot API stopped working on August 31, 2023.

On August 31, 2023, endpoints matching /calendar/v1/* were removed. Calls made to these endpoints after that day fail. You can continue to use the marketing calendar in HubSpot itself, but programmatic access is no longer supported.

## What to use instead

No API replaces it, as HubSpot offers no API in its place. Use the marketing calendar in HubSpot's app instead.

HubSpot offers no API in its place.

- API: HubSpot API (api.hubapi.com)
- Kind: Removal
- Takes effect: August 31, 2023
- Calls after that day: fail
- Calls it hits: `/calendar/v1/*`
- Source: [Announcement](https://developers.hubspot.com/docs/api-reference/deprecated-apis)
- Verified: November 6, 2026, against HubSpot API's own pages
- Page: https://www.okapi.bot/providers/hubspot-api/breaking-changes/the-marketing-calendar-api-stops-working/

## HubSpot API's words

> Marketing calendar | August 31, 2023 | You can continue to use the marketing calendar in HubSpot.

Okapi finds the calls this change hits in your repo and opens the pull request with the fix: https://github.com/apps/okapi-agent