Each one does one job well, runs on Once UI, and gives your AI agent a way in. Pick the one you need, or use them together.
Once UI is an open-source design system for React and Next.js: components, tokens and the rules a coding agent follows, so every screen stays on brand.
Stack is a production-ready Next.js app built on it. Sign-in, teams, billing, docs and a marketing site come already wired together, so you start from a working product instead of a boilerplate.
Choose a template, apply your style once, and publish to the web, to email and to social networks from one workspace.
An agent can draft pages, campaigns and posts over MCP. Nothing goes out until a person approves it. This site is made in Aveiro.
Post to social networks, collect feedback on a public board with a roadmap, measure your sites without cookies and turn any page into a screenshot.
One key works from your code and from your AI agent. Our own products take feedback through Chirio.
Capture any page, frame it in 3D and render it as a video or a still, in light and dark and in every size a feed asks for.
Make films yourself, hand them to an agent over MCP, or call the REST API. The pictures on this site came from the same idea: real screens, never mock-ups.
Tavilio takes bookings, keeps the floor plan honest, runs events and sign-ups, and gives a café, restaurant or studio a website its team can edit.
The owner can let an assistant check availability, confirm bookings or update the menu, with the same rules as the admin screen.
Tell us what you are building. One address reaches the whole team.