Build an app (build-avatar-app)

What it doesCopy Anchor Link

build-avatar-app codes an app or website around an avatar in your project: a backend that starts conversations, a page that joins the call, and, when the app needs them, tools the avatar can use and an agenda it follows. It writes code, so it does most in a coding agent (Claude Code, Codex or Cursor) that can save files into your project.

Start itCopy Anchor Link

Build a page where shoppers talk to our product guide avatar, and let it add items to the cart.

A brief from Plan an app makes a good start.

What it walks you throughCopy Anchor Link

1. Pick the avatar, or make one first with Make an avatar.
2. Shape the app from your brief, or from a few questions.
3. Get an API key for your backend. The secret goes straight into your .env, never the chat.
4. The backend: an endpoint that starts a session and hands your page a room to join.
5. The page: joins the call and shows the avatar.
6. Tools, when the avatar acts on your app: functions it can call, handled in your page.
7. An agenda, when the conversation has steps to follow.
8. Prove it live: a real conversation, checked end to end.
9. Document and ship.

CreditsCopy Anchor Link

Conversations are billed per minute while they run, including the live test; the agent says so before it starts one. See pricing.

What you have at the endCopy Anchor Link

A working app in your project, tested in a live conversation, with a README on how to run and deploy it. The API section documents what it calls.