Hiro experienced a critical incident on December 22, 2025 affecting Stacks Blockchain API and explorer.hiro.so, lasting 29m. The incident has been resolved; the full update timeline is below.
Affected components
Stacks Blockchain APIexplorer.hiro.so
Update timeline
- investigating Dec 22, 2025, 07:53 PM UTC
We are investigating degraded performance with the Stacks Blockchain API in Testnet that began at Dec 22, 2025, 2:53 PM 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.
- monitoring Dec 22, 2025, 08:05 PM UTC
A fix has been implemented and we are monitoring the results.
- resolved Dec 22, 2025, 08:22 PM UTC
This incident has been resolved.