---
title: "First Message | Micdrop"
description: "Configure the initial message that greets users when they start a voice conversation."
url: "https://micdrop.dev/docs/server/first-message"
---

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[Micdrop](/) › [Documentation](/docs/getting-started)

# First Message

Configure the initial message that greets users when they start a voice conversation.

## Static First Message

Set a fixed greeting message with `firstMessage` option:

```
new MicdropServer(socket, {  firstMessage: 'Hello! How can I help you today?',  agent,  stt,  tts,})
```

## Dynamic First Message Generation

Use `generateFirstMessage: true` to let the AI agent create personalized greetings with `systemPrompt`:

```
new MicdropServer(socket, {  generateFirstMessage: true, // Agent will generate the first message  agent: new OpenaiAgent({    apiKey: process.env.OPENAI_API_KEY,    systemPrompt:      'You are a helpful assistant. Start with a warm, personalized greeting.',  }),  stt,  tts,})
```

## Let the user speak first

Don’t set a first message to let the user speak first:

```
new MicdropServer(socket, {  agent,  stt,  tts,})
```

## Wake word

If you want the assistant to speak only after the user has spoken specific word(s), you can use the `onBeforeAnswer` hook in your agent configuration.

```
const WAKE_WORD = /Hello|Bonjour/const FIRST_MESSAGE = 'Hello! How can I help you today?'
new OpenaiAgent({  apiKey: process.env.OPENAI_API_KEY,  systemPrompt: 'You are a helpful assistant.',  onBeforeAnswer(stream) {    // Process only first message    const isFirstAnswer = !this.conversation.some(      (message) => message.role === 'assistant'    )    if (!isFirstAnswer) return
    // Get last user message    const lastUserMessage = this.conversation.findLast(      (message) => message.role === 'user'    ) as MicdropConversationMessage    if (!lastUserMessage) return
    // Check for wake word(s)    if (!WAKE_WORD.test(lastUserMessage.content)) {      // Remove message without answering      this.cancelLastUserMessage()      // Skip normal answer generation      return true    }
    // Send first assistant message    this.addAssistantMessage(FIRST_MESSAGE)    stream.write(FIRST_MESSAGE)    // Skip normal answer generation    return true  },})
```

[Previous← Auth and Parameters](/docs/server/auth-and-parameters)[NextSave Messages →](/docs/server/save-messages)

On this page

*   [Static First Message](#static-first-message)
*   [Dynamic First Message Generation](#dynamic-first-message-generation)
*   [Let the user speak first](#let-the-user-speak-first)
*   [Wake word](#wake-word)