Hiro incident

Mainnet Stacks Core Outage

Critical Resolved View vendor source →

Hiro experienced a critical incident on January 20, 2026 affecting Stacks Blockchain API, lasting 53m. The incident has been resolved; the full update timeline is below.

Started
Jan 20, 2026, 01:21 AM UTC
Resolved
Jan 20, 2026, 02:15 AM UTC
Duration
53m
Detected by Pingoru
Jan 20, 2026, 01:21 AM UTC

Affected components

Stacks Blockchain API

Update timeline

  1. investigating Jan 20, 2026, 01:21 AM UTC

    We are investigating an issue with the Mainnet Stacks Blockchain Node that began at Jan 19, 2026, 8:21 PM ET. Data retrieved from this API’s endpoints may be several blocks behind. The Stacks Explorer, wallets, and any services using the Testnet API may be impacted. We will share more details as additional information becomes available.

  2. resolved Jan 20, 2026, 02:15 AM UTC

    This incident has been resolved.