New Delhi, June 29 -- If you built a custom smart-home setup using SmartThings and Home Assistant, Samsung has an invoice arriving in October.

The company announced this month that non-commercial, individual developers will need to pay $4.99 a month for access to the SmartThings API beginning in October 2026. Access remains free through the end of Q3. The announcement, reported by Engadget, covers anyone using the API to build custom integrations, connect third-party platforms, or automate their smart-home devices outside the official SmartThings app.

What Samsung has not published: the actual rate limits, API call caps, or a clear definition of which usage level triggers the paid plan. The company says it is launching a new API Dashboa...