# Data & observability

Unified event bus (Kafka/Pulsar). OperationalDB for app events; LedgerDB for financial events. 

Anti‑cheat joins device/behavior/geo/merchant features with rules + light models; every blacklist/penalty is explainable. 

Public dashboards (roadmap): 

MAPU, cards issued/activation, txs/user & AOV, chargeback rate, merchants active/GMV, quest completion/repurchase, Net Demand with anti‑cheat notes.

<br>


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://metya.gitbook.io/metya/product-and-architecture/data-and-observability.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.