Langfuse API · Endpoint removal
GET /api/public/observations stops working
Stops working (in 24 days)
On November 16, 2026, GET /api/public/observations* will stop working on cloud.langfuse.com. Requests to these endpoints will fail after this date, as Langfuse Cloud serves them only until November 16, 2026.
What to use instead of these calls
Call GET /api/public/v2/observations instead, specifying fromStartTime/toStartTime, the field groups you need, and cursor pagination. You must also parse input/output yourself.
Calls it hits
GET /api/public/observations*
Deprecated: GET /observations , GET /observations/{observationId} . Langfuse Cloud serves these endpoints 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
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