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

# Blockchains

> The network master table and the onchain metrics of each network: transactions, addresses, fees, revenue, DEX and perp volume, TVL, stablecoin supply, bridge flows and staking.

Resolve a network slug to its networkID with the table, then request the series.

## Endpoints

| Model                                                          | Access               | Table                                                                                                                                          | Timeseries                                                                                                                                          |
| -------------------------------------------------------------- | -------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------- |
| [Blockchains](/api-reference/data-api/blockchains/blockchains) | Blockchains\_unified | [List rows](/api-reference/data-api/blockchains/tabular-blockchains), [One row](/api-reference/data-api/blockchains/tabular-blockchains-by-id) | [Batch](/api-reference/data-api/blockchains/timeseries-blockchains), [One series](/api-reference/data-api/blockchains/timeseries-blockchains-by-id) |

## Example

```bash curl theme={null}
curl "https://api.blockworks.com/query/tabular/blockchains?pageSize=3&selections=networkID,slug,name,networkSerialID" \
  -H "X-Blockworks-API-Key: $BLOCKWORKS_API_KEY"
```

See [List Blockchains](/api-reference/data-api/blockchains/tabular-blockchains) for the response and the errors.

## Guides

<CardGroup cols={2}>
  <Card title="Finding an id" icon="key" href="/api-reference/data-api/discovery/finding-an-id">
    Every series key, the table it comes from and the identifiers that resolve to it.
  </Card>

  <Card title="Granularity" icon="clock" href="/getting-started/concepts/granularity">
    Choosing an interval and bounding a time window.
  </Card>

  <Card title="Filtering and pagination" icon="filter" href="/getting-started/filtering-pagination">
    Filter suffixes, sorting, column selection and paging.
  </Card>

  <Card title="Tabular vs timeseries" icon="book" href="/getting-started/concepts/tabular-vs-timeseries">
    The two model kinds, their URL shapes, and when to reach for each.
  </Card>
</CardGroup>