All work

Cowcierge

A voice AI receptionist for Dutch businesses.

StatusLive, pre-launch · 2026Checked 2026-09-28

Founder. Built it on my own.

Demo data: every name and number in this figure is fictional.

The problem

When a small business is busy, the phone rings and nobody picks up.

What I built

  • A multi-tenant voice AI phone assistant that answers inbound calls, built on my own.
  • Real-time conversation with ElevenLabs and Twilio, a knowledge base per client, and escalation to a human.
  • A pipeline that runs after every call: it extracts the details, scores the call, flags gaps in the knowledge base and writes a summary.
  • 22 industry call scripts, treated as a product of their own.
  • The acquisition side too: a funnel and a programmatic SEO and GEO tool.

How it stays safe

  • Calls that need a person are routed to a person.
  • I translated the EU AI Act, GDPR and Dutch telecom law into design requirements.
  • Everything on this page runs on demo data: every name and call is fictional.

Anatomy

  • App shell
  • Live transcript
  • Agenda
  • Voice orb
  • Logo: four wave bars
  • Incoming call
  • Voice activity
  • Appointment
  • Post-call summary

Numbers

  • 22industry call scriptsFrom my CV

Stack

  • TypeScript
  • Fastify
  • ElevenLabs
  • Twilio

Sources

  • From my CVCV 2026-07-15
  • From the project’s repositoryCowcierge README
  • About this website