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Langfuse

Log LLM traces, spans, generations, and scores to Langfuse, or query traces, prompts, datasets, sessions, and more via the Public API.

Actions28

Public API → List Sessions

AI-generated

Summary

Retrieve a paginated list of sessions from the Langfuse Public API with optional advanced query parameters and control over the number of results returned.

Inputs

  • Show Advanced Fields — Enable to reveal optional fields for fine-tuned querying of sessions.
  • Query JSON — JSON string converted into query string parameters to filter and paginate the list (e.g., page number, limit). Only visible when advanced fields are shown.
  • Return All — Boolean flag to either return all available sessions by auto-paginating the API or limit the output to a specified number.

Output shape

a list of session records with pagination metadata when applicable

If 'Return All' is false, the output is limited to a single page as specified by the 'limit' in the Query JSON or the default. If true, the operation auto-paginates through all available pages up to API limits. The Query JSON must be a valid JSON object string representing query parameters. Errors from API calls are preserved in the output for workflow branching and troubleshooting.

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