# The Harvest v1 API stops working

Calls to /v1/* on Greenhouse Harvest API stopped working on August 31, 2026.

- API: Greenhouse Harvest API (harvest.greenhouse.io)
- Kind: Version retirement
- Takes effect: August 31, 2026
- Calls after that day: fail
- Calls it hits: `/v1/*`
- Source: [Announcement](https://docs.greenhouse.io/harvest.html)
- Page: https://www.okapi.bot/providers/greenhouse-harvest-api/breaking-changes/the-harvest-v1-api-stops-working/

## What to use instead

Move to Harvest v3 (https://harvest.greenhouse.io/v3/...) with OAuth 2.0 client credentials from auth.greenhouse.io; see the READ and WRITE endpoint migration guides at harvestdocs.greenhouse.io.

## Greenhouse Harvest API's words

> The Harvest v1/v2 API is deprecated and will be removed on August 31, 2026. Please migrate to Harvest v3 .