---
title: Pong
description: "Play 0x2D, client → server."
---

`play` · `0x2D` · **serverbound** (client → server)

Response to a clientbound `Ping` in the play state. `id` echoes the ping id. Vanilla servers use it for tick synchronization checks (for example when inventory transactions need ordering); it is not the keep-alive.

Sent by the client, read by the server. Listen for it with `client.on("Pong", (data) => …)` on the receiving side.

## Fields

| Field | Type | Notes |
|---|---|---|
| `id` | Int |  |

## Send it

```ts
await client.sendPacket("Pong", {
  id: /* Int */,
});
```

Field aliases listed under Notes are accepted as alternative keys when writing.

Source: [`src/Core/Versions/776/Packets/play/serverbound/Pong.ts`](https://github.com/GDLev/mc-protocol/blob/master/src/Core/Versions/776/Packets/play/serverbound/Pong.ts)