Returns identity and build information for this server (name, version, build commit, runtime, capability counts)

Fetch data from the Oura Ring API v2.

Pick a collection and provide the matching date range:

• Daily collections use start_date/end_date (YYYY-MM-DD). If both are omitted, the last 7 days are returned.

• Time-series collections (heartrate, ring_battery_level) use start_datetime/end_datetime (ISO-8601), or latest: true.

• personal_info takes no parameters; ring_configuration is a plain list.

• Any list collection with a document id can be fetched directly via document_id. Large lists paginate: pass the returned next_token to fetch the next page.

Available collections:

• daily_activity: Daily activity summary: steps, calories, activity score.

• daily_sleep: Daily sleep summary and sleep score.

• daily_readiness: Daily readiness summary and readiness score.

• daily_spo2: Daily average blood oxygen (SpO2) percentage.

• daily_stress: Daily stress and recovery high/normal durations.

• daily_resilience: Daily resilience level derived from recovery metrics.

• daily_cardiovascular_age: Daily cardiovascular age estimate.

• vO2_max: VO2 max (cardiorespiratory fitness) estimates.

• sleep: Detailed per-period sleep sessions (stages, HRV, heart rate).

• sleep_time: Recommended/ideal bedtime windows.

• session: Guided/unguided moment sessions (meditation, breathing, rest).

• workout: Recorded workouts with intensity, calories, and duration.

• tag: Legacy user-entered tags.

• enhanced_tag: Enhanced user-entered tags (current tag model).

• rest_mode_period: Rest mode periods (recovery/illness) the user enabled.

• heartrate: Time-series heart rate samples.

• ring_battery_level: Time-series ring battery level samples.

• ring_configuration: Ring hardware configuration records (size, color, firmware, design).

• personal_info: The user's personal info: age, weight, height, biological sex, email.