---
title: Developer Kit
slug: developer-kit
docTags: 
createdAt: 2026-09-09T11:36:07.707Z
---

We have a developer kit for integrators and technical teams building on the platform. It packages everything from the live onboarding session into a ready-to-run local environment; no build steps, just plain HTML and a zero-dependency Node server.

[Get in touch](https://www.unith.ai/book-a-demo) and we'll be happy to share the kit with you.

### What's inside

| **Folder**                     | **What** **it is**                                                                                                                                                                                                                                                                   |
| ------------------------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| `companion/`                   | The interactive guide from the onboarding session — a single self-contained HTML file. Every chapter includes live API runners, copy-paste curl commands, and the contracts verified during the session.                                                                             |
| `demo-server/`                 | The demo backend (Node ≥ 18, no dependencies). Includes a plugin-mode endpoint, conversation tools (lead capture and policy lookup), a webhook receiver with HMAC verification, a conversation-logs proxy, and an optional local SLM hookup.                                         |
| `sample-avatar.mp4`            | A reference face video for the custom-avatar chapter — a single idle loop, confirmed to process on the platform.                                                                                                                                                                     |
| `sample-avatar-expressive.mp4` | A reference video for the expressive state: three seconds of calm idle, followed by expressive movement. Use this alongside the expressive preset in the guide.                                                                                                                      |
| `demo-embed/`                  | The embedding demos: a sample website (widget, iframe, or paste-it-yourself), the SDK playground covering the full @unith-ai/core-client v3 API surface (hover any control for an explanation), and three SDK layouts — draggable bubble, fullscreen hero, and scroll-narrated tour. |

*Requires Node ≥ 18. No dependencies to install — clone, run, and go.*