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Tremor continuously syncs Polymarket and Kalshi data every five minutes. Use these endpoints to monitor health, detect backfills, and surface operational metrics.

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Live Status Snapshot

curl -X GET "https://tremor.sh/api/sync/status?history_limit=5" \
  -H "Authorization: Bearer YOUR_API_KEY"
Key fields:
  • sources.{platform}.status: syncing, backfilling, idle, or error
  • sources.{platform}.open_events_tracked: Active markets currently monitored
  • sources.{platform}.backfill_offsets: Progress when replaying historical data
  • table_counts: Row counts for each physical table
Alert when status=error or when last_sync exceeds your freshness SLO.

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Recent Execution History

curl -X GET "https://tremor.sh/api/sync/history?source=polymarket&limit=20" \
  -H "Authorization: Bearer YOUR_API_KEY"
Use the response to:
  • Audit duration spikes (duration_ms)
  • Track written rows (events_written, markets_written)
  • Inspect error payloads for failed runs
  • Render Gantt-style timelines with started_at and completed_at

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Long-Term Metrics

curl -X GET https://tremor.sh/api/sync/metrics \
  -H "Authorization: Bearer YOUR_API_KEY"
The metrics object summarizes:
  • First/last successful update timestamps
  • Total successful runs per source
  • Average duration in seconds
  • Recent interval distribution (min/avg/max) for the last 100 runs
  • Historical percentile stats (median, p95, p99) to form SLO baselines

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Dashboards & Automation Ideas

  • Status page: Show status, last_sync, and active_backfills to keep traders informed.
  • Pager duty: Trigger alerts when intervals.recent.max_minutes breaches thresholds.
  • Capacity planning: Compare events_written vs. markets_written growth week over week.
For schema-level insights, pair these endpoints with Column Statistics and the Sync API reference group.