Langfuse
Open source LLM engineering with traces, evaluations, prompt management, and metrics.
Reads the trace behind a bad answer, compares eval scores between releases, and manages prompt versions.
Use Langfuse with Snow
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What Snow can do with Langfuse
These are the Langfuse operations Snow and the apps you build with it can run. Sign in to choose which ones Snow may run without asking.
Reads11
Look at your data without changing it.
- Get Annotation Queue
Retrieve one Langfuse annotation queue by its ID.
- Get Prompt
Retrieve a Langfuse text or chat prompt by name, deployment label, or exact version, with optional dependency resolution.
- List Annotation Queues
List annotation queues configured for human evaluation in the connected Langfuse project.
- List Dataset Items
List dataset items, optionally scoped to a dataset, source trace or observation, or historical dataset version.
- List Dataset Run Items
List run items for a specific Langfuse dataset and run name.
- List Datasets
List datasets available to the connected Langfuse project.
- List Experiments
List Langfuse experiments active in a required time range, optionally including metadata and directly attached scores.
- List Models
List Langfuse-managed and project-custom model pricing definitions used for usage and cost calculation.
- List Observations
Search Langfuse observations such as generations, spans, events, agents, and tool calls, selecting only the field groups needed.
- List Scores
Search numeric, boolean, categorical, text, and correction scores with subject and annotation context.
Creates1
Add something new to your account.
- Create Score
Attach an evaluation score to exactly one Langfuse trace, session, or dataset run, optionally narrowing a trace score to an observation.
Updates1
Change something that is already there.
- Upsert LLM Connection
Create or update a Langfuse LLM provider connection by provider name.
Related integrations
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