Nexus Status

All Systems Operational

Web interface Operational

REST API Operational

Lab Operational

Hardware Operational

Operational

Degraded Performance

Partial Outage

Major Outage

Maintenance

Past Incidents

Sep 15, 2025

No incidents reported today.

Sep 14, 2025

No incidents reported.

Sep 13, 2025

Hardware, simulators and emulators offline

Completed - The scheduled maintenance has been completed.
Sep 13, 23:00 UTC

In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 11, 23:00 UTC

Update - We will be undergoing scheduled maintenance during this time.
Sep 4, 07:20 UTC

Update - We will be undergoing scheduled maintenance during this time.
Sep 4, 07:19 UTC

Scheduled - All US endpoints (including emulators and syntax checkers) will be down from Thursday September 11th at 5 pm MT to Saturday September 13th 5 pm MT for maintenance.

Job processing will resume as normal and jobs can still be submitted during the maintenance; they'll be queued and processed afterwards.
Sep 4, 07:08 UTC

Sep 12, 2025

No incidents reported.

Sep 11, 2025

Sep 10, 2025

No incidents reported.

Sep 9, 2025

No incidents reported.

Sep 8, 2025

No incidents reported.

Sep 7, 2025

No incidents reported.

Sep 6, 2025

No incidents reported.

Sep 5, 2025

No incidents reported.

Sep 4, 2025

Job submission delays

Resolved - Jobs are working through the system normally. Thank you for your patience as we resolved this issue.
Sep 4, 08:05 UTC

Monitoring - A fix has been implemented and Nexus is slowly starting to handle jobs again. Some delay in jobs running should be expected for the next few hours.
Sep 3, 19:32 UTC

Identified - We've written a fix that should hopefully enable Nexus to clear the backlog and get jobs progressing again. We'll need to monitor it before we can consider this incident closed. Please continue to submit jobs as normal.
Sep 3, 16:12 UTC

Investigating - We have picked up an issue with Nexus job submission. Jobs are being accepted, but Nexus is not passing them on to the underlying quantum providers. New jobs and jobs already submitted will be passed on eventually. We apologise for the issue.
Sep 3, 13:03 UTC

Sep 3, 2025

Sep 2, 2025

No incidents reported.

Sep 1, 2025

No incidents reported.