> ## 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.

# ETFs

> Crypto exchange-traded product metrics per underlying asset and per issuer: assets under management, net flows, product counts, expense ratios and traded volume.

The two tables give the keys of the two series.

## Endpoints

| Model                                                       | Access                 | Table                                                           | Timeseries                                                                                                                                |
| ----------------------------------------------------------- | ---------------------- | --------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------- |
| [ETF Assets](/api-reference/data-api/etfs/etf-assets)       | Institutional\_unified | [List rows](/api-reference/data-api/etfs/tabular-etf-assets)    | [Batch](/api-reference/data-api/etfs/timeseries-etf-assets), [One series](/api-reference/data-api/etfs/timeseries-etf-assets-by-id)       |
| [ETF Providers](/api-reference/data-api/etfs/etf-providers) | Institutional\_unified | [List rows](/api-reference/data-api/etfs/tabular-etf-providers) | [Batch](/api-reference/data-api/etfs/timeseries-etf-providers), [One series](/api-reference/data-api/etfs/timeseries-etf-providers-by-id) |

## Example

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

See [List ETF Assets](/api-reference/data-api/etfs/tabular-etf-assets) 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>