# 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