---
metadata:
  - name: generator
    content: Diplodoc Platform v5.50.6
alternate:
  - https://ytsaurus.tech/docs/en/flow/extensions/about.md
  - https://ytsaurus.tech/docs/ru/flow/extensions/about.md
---
> **Documentation Index:** Fetch the complete configuration index at https://ytsaurus.tech/docs/en/llms.txt

# YTsaurus Flow Extensions

An extension is an optional integration between a pipeline and an external system. Extensions can provide sources, sinks, or other pipeline capabilities.

{% note info %}

Built-in connectors for YTsaurus objects such as queues and tables are described in [Connectors](https://ytsaurus.tech/docs/en/flow/connectors/about.md).

{% endnote %}

## Extensions {#list}

#|
|| **Extension** | **Has source** | **Has sink** | **Description** ||
|| [HTTP](https://ytsaurus.tech/docs/en/flow/extensions/http.md) | 𐄂 | ✓ |
Asynchronous delivery of messages as HTTP POST requests to an external endpoint ||
|| [ClickHouse](https://ytsaurus.tech/docs/en/flow/extensions/clickhouse.md) | 𐄂 | ✓ |
Direct writes to [ClickHouse](https://clickhouse.com/docs) over the native protocol; deterministic batching for exactly-once ||
|#