Platform · Agent Builder

Build voice agents in a visual canvas.

Compose call flows, prompts, tools and knowledge in a no-code builder, test them in live chat, and ship to production in days.

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What you get

A builder and a test lab, in one.

Everything you need to design, test, and ship a voice agent - without an engineering ticket.

Compose call flows, prompts, and branches on a drag-and-drop canvas - no code.

Describe the agent in plain language and start from a scaffolded draft, not a blank page.

Set the voice, tone and persona - and how the agent introduces and represents your brand.

Connect your docs, data and tools so the agent answers and acts from your source of truth.

Set variables, business rules and hard guardrails the agent can’t cross on any call.

Talk to the agent as you build, hear every change instantly, and catch issues pre-production.

How it works

Tell Harmony what the agent should do and start from a guided, working draft.

Shape the call on the canvas - steps, branches, tools, knowledge and guardrails.

Talk to it in live chat, version what works, and ship to production in days.

Bring a use case and we'll build the agent on the canvas, test it in live chat, and show you the path to production.