Retell AI API
GET /get-chat-agent-versions/{id} endpoint removal
Stopped workingSubscribe to Retell AI APIShare
The GET /get-chat-agent-versions/{id} endpoint stopped working on September 15, 2026. Calls made to this endpoint fail since that date.
Calls it hits
GET /get-chat-agent-versions/{id}
What to use instead of these calls
Call GET /list-agent-versions/{agent_id} instead.
In Retell AI API's words
The following APIs are deprecated as of 09/15/2026. Migrate to the listed replacements.
Facts
- API
- Retell AI API
api.retellai.com - Kind
- Endpoint removal
- Takes effect
- September 15, 2026
- Calls after that day
- Fail
- Source
- Announcement
- Last updated
- Verified
- , against Retell AI API's own pages
Questions
When does this change take effect?
Calls to GET /get-chat-agent-versions/{id} on Retell AI API stopped working on September 15, 2026.
What happens to calls after September 15, 2026?
They have failed since September 15, 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.
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You fixed this one by hand.
Okapi opens the pull request with the fix before the next breaking change reaches your code.