Terms

Last updated September 26, 2026. tesserai is a product of Mirical LLC, a New York limited liability company (“we”). These terms are between you and Mirical LLC. By using tesserai you agree to them.

The service

tesserai lets you build design systems, preview them, and generate code and files from them. Some features need an account, and some need a paid plan.

Your account

Keep your sign-in secure; you're responsible for what happens in your account. You must be at least 13, or older where the law of your country requires it, and able to agree to these terms. A team's owners manage who is in it and what each person can do.

What you make is yours

You own your design systems, pages, comments and the code generated from them. You give us permission to store, process and show them only as needed to run the service for you and the people you share them with. The generated code carries no license restrictions from us; the open-source libraries it uses keep their own licenses.

AI features

AI answers can be wrong. Review proposals before applying them. Requests are sent to our AI providers to be answered. Monthly allowances and per-request caps apply by plan, and a plan's allowance is subject to fair use: we may limit requests that are far heavier than ordinary use.

Fonts and icons you upload

Upload only fonts and images you're allowed to use. Fonts you upload are served only to you and your team.

Acceptable use

Don't use tesserai to break the law, infringe others' rights, attack or overload the service, get around limits, or access other people's data.

Plans and payment

Payments are processed by Stripe. Paid plans renew each month or each year, as you chose, until cancelled. Cancel any time; you keep the plan until the end of the period you paid for. We don't give refunds or credits for partial periods. Prices can change with 30 days' notice, and a change applies from your next renewal after that. Taxes are added where required.

Ending

You can delete your account at any time. We may suspend or end accounts that break these terms, and will tell you why unless the law or safety prevents it. Download your systems before deleting your account.

Warranty and liability

tesserai is provided “as is” and “as available”, without warranties of any kind beyond those the law requires, including warranties that it will be uninterrupted, error-free, or fit for a particular purpose. To the extent the law allows, we aren't liable for indirect, incidental, special, consequential or punitive damages, or for lost profits, revenue or data, and our total liability for any claim about tesserai is limited to the greater of what you paid us in the 12 months before the claim and $100. Some places don't allow these limits; where they don't, they apply as far as the law allows.

Changes and law

If these terms change in a way that matters, we'll tell you before it takes effect. The laws of the State of New York govern them, without regard to its conflict-of-laws rules, and disputes go to the state and federal courts in New York County, New York.

Questions: andrew@mirical.co.