AI Voice Chatbot via Webhook with Memory

* ### For the Text-to-Speech part, we'll use ElevenLabs.io, which is free and offers a variety of voices to choose from. However, you can also use the OpenAI `"Generate audio"` node instead.

















* ### Since there is no pre-built node for `"ElevenLabs"` in n8n, we'll connect to it through its API using the "HTTP Request" node.

## Prerequisites:
* ### `"ElevenLabs API Key"` (you can obtain it from their website).
* ### `"Voice ID"` (you can also get it from ElevenLabs' "Voice Library").
## Setup
* ### In the URL parameter, replace "{{voice id}}" at the end of the URL with the Voice ID you obtained from ElevenLabs.io.
* ### To set up your API Key, add custom authentication and include the following `JSON` with your acual ElevenLabs API Key:
```json
{
 "headers": {
 "xi-api-key": "put-your-API-Key-here"
 }
}
```