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Nixflex is an AI voice platform for building real-time AI phone agents. It answers and makes phone calls, holds natural conversations, and handles the work a human receptionist or call agent would - booking appointments, transferring calls, sending texts, and more.

The simple version

When someone calls a business number, Nixflex answers. It listens to the caller, understands what they need, replies in a natural voice, and takes action - all in about a second, in a real back-and-forth conversation. The same number can also reply to texts. You control what the agent says and does with a simple prompt; the engine handles everything else.

Who it’s for

Businesses

Get a phone agent that answers calls, books appointments, and takes messages - without building anything. Ideal for clinics, salons, restaurants, and service businesses.

Developers

A voice AI API to embed phone agents into your own product. Bring your own Twilio, create agents, and go live with a few API calls.

Agencies

Run one agent template across many client numbers, each with its own bookings, CRM, and settings - all under one account.

Your own apps

Full control and the lowest cost, since you own the engine and the numbers.

What makes it different

  • Real-time and natural - fast enough for a genuine conversation, not a clunky IVR.
  • Bring your own Twilio - you own your numbers and carrier billing; Nixflex never marks them up.
  • One number, voice and SMS - the same number answers calls and replies to texts, no separate chat bot.
  • Live Monitor - listen to a live call from your phone or tablet.
  • Integrations - book into calendars, push to CRMs, and connect thousands of apps, all per phone number.

Next steps

Quickstart

Get your first agent live in minutes.

For businesses

The no-code path to a phone agent.