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

# Beacon Chain state

> Query the Ethereum Beacon Chain state — retrieve validator sets, committee assignments, epoch data, and finality checkpoints from the consensus layer.

<CardGroup>
  <Card title="Block root by block_id" href="/reference/getbeaconblockrootbyblockid" icon="angle-right" iconType="solid" horizontal />

  <Card title="Get block by block_id" href="/reference/getbeaconblocksbyblockid" icon="angle-right" iconType="solid" horizontal />

  <Card title="Beacon headers by block_id" href="/reference/getbeaconheadersbyblockid" icon="angle-right" iconType="solid" horizontal />

  <Card title="Beacon headers by slot" href="/reference/getbeaconheadersbyslotandparentroot" icon="angle-right" iconType="solid" horizontal />

  <Card title="Get sync committees by state and epoch" href="/reference/getsynccommitteesbystateidandepoch" icon="angle-right" iconType="solid" horizontal />

  <Card title="Get committees by state, epoch, index, and slot" href="/reference/getcommitteesbystateidepochindexandslot" icon="angle-right" iconType="solid" horizontal />

  <Card title="Finality checkpoints for a given state" href="/reference/getfinalitycheckpoints" icon="angle-right" iconType="solid" horizontal />

  <Card title="Root of a given state" href="/reference/getstateroot" icon="angle-right" iconType="solid" horizontal />
</CardGroup>