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

# Event

> Starts when Discord emits this client event or when a webhook hits your bot.

Event flows react to Discord activity or inbound webhooks instead of user commands.

This block is placed automatically by the builder. You cannot add it from the block palette.

## What it does

Subscribes to a discord.js client event (such as `messageCreate` or `guildMemberAdd`) or exposes an HTTP webhook path. When the event fires, blocks connected below run in order.

## Common uses

* **Welcome messages** — Run on `guildMemberAdd` to greet new members.
* **Auto moderation** — React to `messageCreate` with filters and actions.
* **External triggers** — Start flows from outside Discord via webhook POST requests.

## Configuration

Open the block in the builder sidebar to configure these fields.

### `friendly_name`

**Type:** `string`. Required.

Dashboard title for this event flow.

### `friendly_description`

**Type:** `string`.

Optional notes shown on the card and in your event list.

### `client_event`

**Type:** `string`. Required.

discord.js event name (for example `messageCreate`, `voiceStateUpdate`).

### `trigger_on_users`

**Type:** `boolean`.

Allow human accounts to trigger the flow.

### `trigger_on_bots`

**Type:** `boolean`.

Allow other bot accounts to trigger the flow.

### `trigger_on_webhooks`

**Type:** `boolean`.

Allow channel webhook posts to trigger the flow.

## Tips

* For webhook events, configure path suffix and optional `mrdn-key` authentication in the block sidebar.

## Important

* This bot's own messages never trigger event flows, even when author filters are broad.

## See also

* [Event flow](/builder/action-blocks/event-flow) — Browse all blocks in the Event flow category.