Hello AI
Hello is an AI voice receptionist platform. A business gets an AI assistant and a phone number; the assistant answers calls in 95+ languages, including Amharic, Afaan Oromo and Tigrinya, and every call is captured with its transcript and billed by the minute. It reached the national final of the ALX Ethiopia × Kuriftu Hospitality Hackathon 2026.
- Finalist
- ALX Ethiopia × Kuriftu Hospitality Hackathon 2026
- 95+
- languages, Amharic included
- 2
- voice providers behind one interface
- 85+
- database migrations, run on startup
What I built
- ElevenLabs and Vapi sit behind one shared interface, so switching voice provider is a single environment variable with no code changes.
- Incoming calls are matched to the right active assistant and its owner before the billable call record is written, whichever provider the webhook came from.
- Stripe webhooks keep the raw request body for signature verification, and handle automatic minute top-ups with retries.
- A post-call engine (extract → map → dispatch) sends results to Slack, Outlook and CRMs without touching the call pipeline.
- Around the calls: appointment scheduling synced to Google and Outlook calendars, document templates with e-signature, and invoicing.
- Idempotent scheduled jobs handle call dispatch, billing renewal and assistant activation.
Stack
- Node.js
- Express
- MySQL
- ElevenLabs
- Vapi
- Stripe
- Google Calendar
- Microsoft Graph
- Dropbox Sign
- OAuth 2.0
- Next.js