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

# Overview

> Realtime, low-latency data streaming to your data lake of choice.

<Frame>
  <img src="https://mintcdn.com/allium-e770e2b7/M3SuvBIUs-0g-3vo/images/image-datastream.webp?fit=max&auto=format&n=M3SuvBIUs-0g-3vo&q=85&s=6e2bfd1dfd6f3b23cc3abc980a57ccad" alt="Datastreams architecture diagram" width="2232" height="1552" data-path="images/image-datastream.webp" />
</Frame>

Allium offers realtime blockchain data streams via Kafka, Pub/Sub, and Amazon SNS, providing guaranteed delivery of fresh, accurate, and enriched data for 80+ blockchains.

## What are Datastreams?

Allium Datastreams delivers realtime event data through enterprise message brokers. This service provides instant transaction and event notifications, custom filtering and subscriptions, and guaranteed message ordering for reliable data delivery.

## Key Benefits

<CardGroup cols={3}>
  <Card title="Realtime Processing" icon="bolt">
    Instant transaction and event notifications for time-sensitive applications
  </Card>

  <Card title="Guaranteed Delivery" icon="shield-check">
    Messages are delivered even if either side experiences an outage
  </Card>

  <Card title="Historical Replay" icon="clock-rotate-left">
    Retention policies allow replay of historical messages when needed
  </Card>
</CardGroup>

<Info>
  **Why Streaming Over Webhooks?**

  We highly recommend streaming over webhooks because it (1) guarantees delivery even during outages, and (2) allows replay of historical messages through retention policies.
</Info>

## Available Data Streams

<iframe src="https://app.allium.so/embed/datastreams" width="100%" height="600" frameborder="0" allowfullscreen />

## Supported Integrations

<CardGroup cols={3}>
  <Card title="Apache Kafka Integration" icon="bolt" href="/datastreams/kafka">
    Tap into high-throughput, low-latency data streams, perfect for handling large volumes of realtime information.
  </Card>

  <Card title="Google Cloud Pub/Sub Integration" icon="google" href="/datastreams/pubsub">
    Consume data streams directly from a Pub/Sub subscription, keeping your
    systems in sync with realtime data.
  </Card>

  <Card title="Amazon SNS Integration" icon="aws" href="/datastreams/sns">
    Receive realtime blockchain events through Amazon Simple Notification Service.
  </Card>
</CardGroup>

## Customer Success Stories

Allium's datastreams power critical operations for leading blockchain applications:

* **Phantom** - Realtime wallet backend
* **Messari** - Market intelligence features
* **Bridge** - Back-office reconciliation systems

<Note>
  For the complete data catalog, refer to our [supported
  blockchains](https://www.notion.so/alliumlabs/19fa375bd42980059ebfe4ff5e807738?v=19fa375bd42980da81ab000ccc63f7be).
</Note>