Outage in Hiro

Mainnet Stacks Blockchain API Errors

Resolved Major
December 21, 2025 - Started 21 days ago - Lasted about 1 hour
Official incident page

Incident Report

We are investigating an issue with the Mainnet API service that began at Dec 21, 2025, 11:45 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.

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Latest Updates ( sorted recent to last )
RESOLVED 21 days ago - at 12/22/2025 05:53AM

This incident has been resolved.

INVESTIGATING 21 days ago - at 12/22/2025 04:45AM

We are investigating an issue with the Mainnet API service that began at Dec 21, 2025, 11:45 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.

Latest Hiro outages

Mainnet Stacks Blockchain API Errors - about 18 hours ago
Mainnet Stacks Core Outage - 9 days ago
Mainnet Stacks Blockchain API Errors - 16 days ago
Mainnet API Block Progression Stalled - 18 days ago
Testnet Stacks Blockchain API Outage - 21 days ago

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