AssemblyAI API
/lemur/v3/* endpoint removal
Stopped workingSubscribe to AssemblyAI APIShare
Calls to /lemur/v3/* on AssemblyAI API stopped working on March 31, 2026.
Calls it hits
/lemur/v3/*
What to use instead of these calls
Migrate to the LLM Gateway.
In AssemblyAI API's words
LeMUR will be deprecated on March 31, 2026 and will no longer work after this date.
Facts
- API
- AssemblyAI API
api.assemblyai.com - Kind
- Endpoint removal
- Announced
- November 18, 2025
- Takes effect
- March 31, 2026
- Calls after that day
- Fail
- Source
- Announcement
- Last updated
- Verified
- , against AssemblyAI API's own pages
Questions
When does this change take effect?
Calls to /lemur/v3/* on AssemblyAI API stopped working on March 31, 2026.
What happens to calls after March 31, 2026?
They have failed since March 31, 2026.
How do I find the calls this hits in my code?
Okapi reads your repository, finds the calls this change hits and opens a pull request with the fix. It never commits to your branches: every change comes as a pull request you review.
More from AssemblyAI API 6
-
POST /lemur/v3/generate/action-itemsEndpoint removal Stopped working -
/v2/realtime/wsEndpoint removal Stopped working -
POST /v2/transcriptParameter removal Stopped working -
POST /v2/transcriptParameter removal Stopped working -
POST /v2/transcriptParameter removal Stopped working -
No date
POST /v2/transcriptParameter removal Deprecated, no date
You fixed this one by hand.
Okapi opens the pull request with the fix before the next breaking change reaches your code.