Mainnet Stacks Blockchain API Errors

Incident Report for Hiro Systems

Resolved

Upon review, we found some network instability within our infrastructure that was causing the Stacks Blockchain API to delay block ingestion. We believe to have found and resolved the underlying cause.
Posted Dec 11, 2025 - 15:24 EST

Monitoring

A fix has been implemented and we are monitoring the results.
Posted Dec 11, 2025 - 11:19 EST

Investigating

We are investigating an issue with the Mainnet API service that began at Dec 11, 2025, 10:57 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.
Posted Dec 11, 2025 - 11:01 EST
This incident affected: Services for Mainnet (Stacks Blockchain API) and explorer.hiro.so.