Build a Voice Notification System with ElevenLabs

Description and use

A minimal voice notification system that converts monitoring alerts into spoken messages using ElevenLabs TTS and a Flask webhook.

Problem

Monitoring dashboards rely on visual alerts that can be missed when users are not looking at a screen.

Outcome

A minimal, end‑to‑end voice notification system that turns monitoring alerts into spoken messages using ElevenLabs TTS and a Flask webhook.

Workflow

• 1. Monitoring system (Prometheus, Grafana, or custom script) sends a JSON payload to a Flask webhook. 2. Flask webhook receives the payload, extracts the message, and calls ElevenLabs TTS API. 3. ElevenLabs returns an MP3/OGG audio stream. 4. Flask returns the audio file as a response, which can be streamed or stored for later playback.

Evidence

ElevenLabs stands out for its natural‑sounding voices, easy‑to‑use REST API, and generous free tier.

Source

Flask webhook receives the payload, builds a short message (“CPU usage is 95% on server X”), and calls the ElevenLabs TTS endpoint.

Source

The API returns a binary audio stream

Source