Degraded API Performance in US Regions

What to do

• Check whether you use Cartesia in us. Check your stack

  Paste a package.json, lockfile, Terraform or a list of domains at down.guide/stack to see every provider you depend on.

• Confirm your retries, queues and scheduled jobs caught up after the 0m it lasted.

  Anything that failed between 2026-10-07 23:17 UTC and 2026-10-07 22:23 UTC may need a replay.

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Root cause

The root cause has been identified as a change that led to increased load in our internal caching service.

Updates from Cartesia 5

1. investigatingOct 7, 2026, 4:29 PM UTC

   Customers in the US regions are facing increased latency for some API requests.

   provider

2. monitoringOct 7, 2026, 4:50 PM UTC

   The root cause has been identified as a change that led to increased load in our internal caching service. We have mitigated the issue on our end and are continuing to monitor the state of our service.

   provider

3. investigatingOct 7, 2026, 9:13 PM UTC

   Our caching service briefly experienced increased load due to the same configuration change, leading to increased latency in US regions again.

   provider

4. monitoringOct 7, 2026, 9:16 PM UTC

   This degradation has been quickly mitigated; we are closely monitoring performance for all key endpoints in the US regions.

   provider

5. resolvedOct 7, 2026, 10:23 PM UTC

   The replacement for the offending change has been deployed. The incident is resolved.

   provider

Corrections

None so far.

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