AssemblyAI incident
503 Error when using temp tokens with Realtime API
AssemblyAI experienced a minor incident on August 3, 2026 affecting Streaming API, lasting 1h 47m. The incident has been resolved; the full update timeline is below.
Affected components
Streaming API
Update timeline
- investigating Aug 03, 2026, 04:08 PM UTC
We are currently investigating an issue where users on our us-east-1 endpoint are experiencing 503 errors when using temporary tokens with our Realtime API.
- identified Aug 03, 2026, 04:11 PM UTC
Our team has identified the issue and a fix is being released.
- identified Aug 03, 2026, 04:33 PM UTC
We are continuing to work on a fix for the issue. The API is stable and the errors subsided at 5:11pm UTC.
- monitoring Aug 03, 2026, 04:37 PM UTC
A fix has been implemented and we are monitoring the results.
- resolved Aug 03, 2026, 05:56 PM UTC
This incident has been resolved.