Hiro experienced a major incident on December 27, 2025 affecting Stacks Blockchain API and explorer.hiro.so, lasting 5h 3m. The incident has been resolved; the full update timeline is below.
Affected components
Stacks Blockchain APIexplorer.hiro.so
Update timeline
- investigating Dec 27, 2025, 10:19 AM UTC
We are investigating an issue with the Mainnet API service that began at Dec 27, 2025, 5:19 AM ET. Data retrieved from this API’s endpoints may be several blocks behind. The Stacks Explorer, wallets, and any services using the API may be impacted. We will share more details as additional information becomes available.
- resolved Dec 27, 2025, 03:23 PM UTC
This incident has been resolved.