> For the complete documentation index, see [llms.txt](https://use.temporal.xyz/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://use.temporal.xyz/nozomi/transaction-submission-quic.md).

# QUIC Client

Nozomi provides a native QUIC client for submitting transactions:

[**github.com/temporalxyz/nozomi-quic-client →**](https://github.com/temporalxyz/nozomi-quic-client)

## When to Use It

QUIC is **not** faster than the HTTP endpoints when you keep a warm connection open. Over a persistent, reused TCP connection, [Batch Send](/nozomi/batch-send.md) over a direct `http://` endpoint is the lowest-latency path (see [Regions & Endpoints → Choosing a submission method](/nozomi/endpoints.md#choosing-a-submission-method)).

QUIC is useful for a **specific case**: workloads that **cannot hold a single connection open** and have to re-establish a connection frequently. QUIC's connection setup (including session resumption) is cheaper than repeatedly completing a fresh TCP + TLS handshake, so you pay less latency per reconnect.

Use QUIC when:

* You cannot maintain one long-lived, warm connection to a region.
* Your process is short-lived, serverless, or otherwise reconnects often.
* Network conditions force frequent reconnection.

If you can keep a connection open, prefer Batch Send or API v2 over a direct `http://` endpoint instead, and use [TCP Keep-Alive](/nozomi/keeping-your-tcp-connection-alive.md) to keep it warm.

## Notes

* The transport you choose does **not** change your priority in Nozomi's queue: priority is driven by your [tip](/nozomi/tipping-and-faq.md), not by QUIC vs HTTP.
* Like API v2 and Batch Send, QUIC submission does **not** return a transaction signature. Compute and track the signature client-side before submitting.


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