RostoTry a face

Where a face
changes everything.

Anywhere your product talks to a person, a face that reacts earns trust faster than text alone.

Where teams put a face

Customer support

A calm face that listens while a user types, and lights up the moment it solves the problem.

Support

Sales & outreach

Put a real face on your outbound agent so a first message feels human, not automated.

Sales

Onboarding & tours

Guide new users through your product with a host that reacts to what they do.

SaaS

Research & interviews

A warm interviewer that runs hundreds of conversations at once. Pairs with Digaso.

Research

Tutors & training

A patient teacher that shows encouragement, surprise and thought as it explains.

Education

Characters & companions

Give a game NPC or a companion app a face with genuine, readable emotion.

Games

App mascots & motion

Export your avatar as Lottie clips and stickers — drop a face with feelings into onboarding, empty states and launch posts.

Design

In the chat itself

Your avatar as animated reaction stickers — laughing, empathizing, agreeing — with a caption that types out in sync. See the pack below.

Stickers

Compliance-first teams

Every avatar is consent-attested, AI-marked and verifiable — the transparency the EU AI Act asks for, built in.

Enterprise

And things people build on a weekend.

The nine above are what teams ship. These are what one person ships — and they're the ones the free tier was built for.

Discord bots

Give your bot a face that reacts in voice channels, and a sticker pack of itself for the server.

Bots

Game jams

A talking NPC with real expressions, in an afternoon, with no animator and nothing to render at runtime.

Jams

Portfolio & link-in-bio

Put a living face on your own site that greets whoever lands on it. About 170 KB, no build step.

Personal

Streaming & VTubing

A lightweight puppet that lip-syncs to your mic and takes emotion cues from chat.

Streaming

Class & thesis projects

A face for a research prototype that runs offline on a laptop in a demo room with bad wifi.

Students

Your README

Three lines of embed and your docs have a host. Every copy carries the badge back to you.

Open source

Under 18? Your account is fine — you just can't upload a real face. Start from a synthetic persona: a wholly fictional person, no photo, no consent needed, and it does everything a photo avatar does.

Every one works two ways. Silent: the face reacts while your user reads. Voiced: drive the lips straight from your text-to-speech or audio. Same avatar, your choice — as the classic frame set or the crisp vector edition, from the same single selfie. And driving it is one line: your app says empathize or laugh in plain terms, the avatar performs the rest.

Make your own Try a face

Reaction stickers, from the same face.

Every avatar renders a pack of looping reactions — no animator, no extra generation cost, because the rig is procedural. Each pack ships twice: as GIFs for GIPHY, Slack and Discord, and as 512px WebP for the WhatsApp and Telegram sticker trays — which do not take GIFs.

greet reaction sticker, animated
greet
delight reaction sticker, animated
delight
laugh reaction sticker, animated
laugh
agree reaction sticker, animated
agree
empathize reaction sticker, animated
empathize
thinking reaction sticker, animated
thinking
surprised reaction sticker, animated
surprised
wink reaction sticker, animated
wink

Rendered by the same code that serves the download (/v1/avatars/<id>/stickers). Add a caption and it types out in sync with the emotion. Every GIF carries an invisible AI-provenance mark.