> ## Documentation Index
> Fetch the complete documentation index at: https://docs.flumes.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Observability

> Events, request IDs, and inspecting costs/latencies.

We emit events like `context.assemble`, `recall.query`, `mem.upsert`, `extract.run`.

* Every response includes `request_id`.
* Use the dashboard to inspect per-call latency and cost.

Append custom events:

```bash theme={null}
curl -s https://api.flumes.ai/v0/observability/events \
  -H "Authorization: Bearer $FLUMES_API_KEY" \
  -H "Content-Type": "application/json" \
  -d '{"events":[{"event_type":"context.assemble","event_time":"2024-07-01T12:00:00Z","attrs":{"note":"demo"}}]}'
```