Returns a time series broken down by a chosen dimension (model, organization key, customer, prompt, deployment, or provider). Each row is one bucket with one column per dimension value. Top values are kept; the rest are folded into Others.
Use your Respan API key for Respan API authentication. Enter only the Respan API key value; clients send Authorization: Bearer <RESPAN_API_KEY>. For /api/responses, OpenAI or Azure OpenAI provider credentials go in Settings -> Providers or the request body credential_override field, not in this auth field.
Preset time range. Use this or explicit start_time / end_time.
Base date used with summary_type presets.
Bucket granularity for time-series responses.
