Hiro incident

Testnet Stacks Blockchain API Outage

Critical Resolved View vendor source →

Hiro experienced a critical incident on May 10, 2026 affecting Stacks Blockchain API and explorer.hiro.so, lasting 10m. The incident has been resolved; the full update timeline is below.

Started
May 10, 2026, 04:05 AM UTC
Resolved
May 10, 2026, 04:16 AM UTC
Duration
10m
Detected by Pingoru
May 10, 2026, 04:05 AM UTC

Affected components

Stacks Blockchain APIexplorer.hiro.so

Update timeline

  1. investigating May 10, 2026, 04:05 AM UTC

    We are investigating degraded performance with the Stacks Blockchain API in Testnet that began at May 10, 2026, 12:05 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.