---
title: Intension
description: "Handshake 0x00, client → server."
---

`handshake` · `0x00` · **serverbound** (client → server)

First packet of every connection. The client sends its `protocolVersion`, the host and port it connected to, and the `nextState` it wants (status, login, or transfer). The server uses `nextState` to switch the connection into the status or login state; no reply is sent.

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

## Fields

| Field | Type | Notes |
|---|---|---|
| `protocolVersion` | VarInt | also `protocol` |
| `serverHost` | String | also `address` |
| `serverPort` | UShort | also `port` |
| `nextState` | VarInt | also `intent` |

## Send it

```ts
// Client side, right after "Socket:Ready".
await client.sendPacket("Intension", {
  protocolVersion: 776,
  serverHost: "localhost",
  serverPort: 25565,
  nextState: 2, // 1 = status, 2 = login, 3 = transfer
});
```

Send this first on every new socket. `nextState` picks what the next packet is allowed to be: `StatusRequest` after `1`, `Hello` after `2`. `protocol` is accepted as an alias for `protocolVersion`.

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

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