Pinterest API adds media library asset management and background style selection for catalog ads

Pinterest's developer changelog lists two advertiser-facing API updates. On October 15, 2026 businesses gained API management of media library assets: list and inspect uploaded assets, rename and retag them, and delete them, through new endpoints (Edit assets, Get all assets, Get an asset, Remove assets). Pinterest describes assets as reusable, business-owned image and video creatives, separate from Pins. On October 8, 2026 Pinterest added a generated_background_styles parameter to the create and update product group promotion endpoints, used when background generation is on: BASIC gives solid or gradient backgrounds, and LIFESTYLE together with BASIC gives AI-generated lifestyle images (LIFESTYLE cannot be selected alone).

Impact

Agencies and creative tools can manage Pinterest creative libraries programmatically and control whether catalog ads use plain or AI lifestyle backgrounds, giving more brand control over automated product imagery.

Recommendations

Integrate the media library endpoints into creative management workflows to keep asset libraries tidy
Decide per brand whether AI lifestyle backgrounds are acceptable and set generated_background_styles accordingly
Test BASIC versus LIFESTYLE backgrounds in catalog ads

Source: Pinterest Developers