Langfuse API
POST /api/public/events endpoint removal
Stops workingSubscribe to Langfuse APIShare
On November 16, 2026, the POST /api/public/events endpoint will stop working. Calls to this endpoint will fail after this date. Langfuse Cloud serves these trace-ingestion paths until November 16, 2026.
Calls it hits
POST /api/public/events
What to use instead of these calls
Send events to POST /api/public/otel/v1/traces (OTLP/HTTP) with the x-langfuse-ingestion-version: 4 header instead. Alternatively, upgrade the SDK to Python 4.7.0, JS/TS 5.4.0, or later.
In Langfuse API's words
Langfuse Cloud serves these trace-ingestion paths until November 16, 2026
Facts
- API
- Langfuse API
cloud.langfuse.com - Kind
- Endpoint removal
- Announced
- August 17, 2026
- Takes effect
- November 16, 2026
- Calls after that day
- Fail
- Source
- Announcement
- Last updated
- Verified
- , against Langfuse API's own pages
Questions
When does this change take effect?
Calls to POST /api/public/events on Langfuse API stop working on November 16, 2026.
What happens to calls after November 16, 2026?
They fail from that day.
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 Langfuse API 10
-
/api/public/dataset-run-itemsEndpoint removal Stops workingin 10 days -
/api/public/datasets/{id}/runs*Endpoint removal Stops workingin 10 days -
/api/public/generationsEndpoint removal Stops workingin 10 days -
/api/public/spansEndpoint removal Stops workingin 10 days -
GET /api/public/metrics*Endpoint removal Stops workingin 10 days -
GET /api/public/observations*Endpoint removal Stops workingin 10 days -
GET /api/public/scores*Endpoint removal Stops workingin 10 days -
GET /api/public/sessions*Endpoint removal Stops workingin 10 days -
GET /api/public/traces*Endpoint removal Stops workingin 10 days -
GET /api/public/v2/scores*Endpoint removal Stops workingin 10 days
Is your code calling this?
Okapi finds the calls this change hits in your repo and opens the pull request with the fix before November 16, 2026.