# HubSpot for Developers v1 OAuth API Deprecation

- Product: HubSpot for Developers (https://whatsnew.fyi/product/hubspot-developers)
- Vendor: HubSpot
- Date: 2026-05-12
- Original notes: https://developers.hubspot.com/changelog/v1-oauth-api-deprecation
- Permalink: https://whatsnew.fyi/product/hubspot-developers/releases/2026-05-12-v1-oauth-api-deprecation

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We have introduced the latest date-based, versioned OAuth AP I for token issuance and introspection, as announced previously here . As adoption of the new OAuth API grows, we are beginning to deprecat…

- **deprecated** — The OAuth API for token issuance and introspection is being deprecated in favor of the new date-based, versioned OAuth API