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

# Counter

<CardGroup cols={2}>
  <Card title="View Repository" icon="github" href="https://github.com/magicblock-labs/magicblock-engine-examples/tree/main/anchor-counter" iconType="duotone">
    Explore the source code and implementation
  </Card>
</CardGroup>

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## Overview

Track and update counters on-chain with low latency using Ephemeral Rollups. This simple example demonstrates the core concepts of delegating accounts to ephemeral rollups and achieving high-frequency state updates.

***

## Related Products

<CardGroup cols={2}>
  <Card title="Ephemeral Rollup" icon="gauge-max" href="/pages/ephemeral-rollups-ers/introduction/ephemeral-rollup" iconType="duotone">
    Learn how Ephemeral Rollups work
  </Card>

  <Card title="Quickstart Guide" icon="rocket" href="/pages/ephemeral-rollups-ers/how-to-guide/quickstart" iconType="duotone">
    Get started with Ephemeral Rollups
  </Card>

  <Card title="Anchor Integration" icon="anchor" href="/pages/ephemeral-rollups-ers/how-to-guide/anchor" iconType="duotone">
    Build with Anchor framework
  </Card>

  <Card title="Magic Router" icon="route" href="/pages/ephemeral-rollups-ers/introduction/magic-router" iconType="duotone">
    Understand transaction routing
  </Card>
</CardGroup>