# Key metrics

Heartbeats is building data feeds for a wide variety of metrics. We hope that you'll find Heartbeats as helpful as we do. For the first time, we can understand how different scaling solutions perform, both technically and economically.

## Real-time data

* Fees paid by users
* Transaction count
* Active address count

## Historical data

* Total addresses
* Total transactions
* Fees saved
* Mainnet date

## Economics data

* Avg tx cost
* Rent cost paid to Bitcoin
* Revenue

## Price data

* Price
* 24h Vol
* MC
* FDV


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# 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:

```
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```

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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.