Terms of Service

Open beta

AltoDocs is in open beta. While the beta runs, AltoDocs is free to use: no payment card is required, there is no trial period and nothing is charged automatically. The only subscription offered during the beta is the optional AI & MCP seat described below; we do not sell other new subscriptions or paid services during the beta.

AI & MCP seats. An AI & MCP seat gives one named person the AI panel and the MCP connector for AI applications such as Claude, ChatGPT and Codex. AltoDocs does not supply the AI model: the AI panel runs on your own AI provider key, and your provider bills its use to you directly under its own terms. Seats are bought per user by an organisation owner for business use, under the business subscription terms, version 2026-10-12-business-v1, and are assigned by the organisation’s owners and admins. A seat may not be shared between people; AI may be used on up to two devices and two connected AI applications at a time.

During the beta, each organisation can assign the number of editing seats shown in the product. Features may be added, changed or removed as we develop AltoDocs, and the service may occasionally be unavailable. The general terms below apply to beta use, including the engineering disclaimer in section 9.

Before the free beta ends or paid plans are introduced, we will give at least 60 days’ notice by email and in the product. Paid plans apply only if you choose to accept them. Your documents remain yours, and you can export them at any time, including after the beta.

Existing subscriptions

Subscriptions purchased before the open beta continue under the terms accepted at purchase: the business subscription terms, version 2026-10-12-business-v1, or the paid subscription terms, version 2026-10-12. You can cancel future renewals in Subscription. Rights to withdraw, obtain a refund or seek a remedy under an earlier contract or mandatory law remain unaffected. If you have a withdrawal right, contact us at contact@altodocs.io to give notice and receive a confirmation.

Your contracting party is AltoDocs ApS, CVR 46738276, VAT DK46738276, Vennemindevej 18, st. tv., c/o Kunt Alp Celebi, 2100 København Ø, Denmark. Contact contact@altodocs.io for billing, invoices, complaints or support.

Engineering use notice — 25 October 2026

Software can contain errors. Every result must be checked before project use. AltoDocs is software assistance, not a professional engineering service. It does not act as your structural engineer, designer, independent checker or certifier, and does not approve a design or guarantee compliance with a standard, national annex, regulation or project requirement.

This warning covers all calculations and outputs, including MathCanvas, spreadsheets, drawings, Python code and package results, AI responses, API and MCP output, public demonstrations, examples, templates, imported information and exports. Examples and sample values are illustrative and are not complete or approved project designs.

Before any design, construction, submission or other project use, the responsible, suitably qualified structural engineer must independently verify the inputs, units, assumptions, formulas, boundary conditions, material properties, applicable standards and their versions, results, and the completeness and suitability of the final deliverable. A completed calculation, successful code run, AI response or displayed pass indicator is not independent checking or engineering approval. Users are responsible for their engineering decisions, required professional checks, approvals and use of their work.

The free beta, demonstrations and examples may contain bugs, omissions or outdated information. They carry no guarantee of error-free operation, accurate or complete results, or suitability for a particular project, subject to applicable mandatory rights and any express commitments in your agreement. Keep independent copies of important work and check exports before issuing them.

This notice explains the verification requirement in section 9. It does not replace an existing accepted contract or retrospectively add liability exclusions. The applicable agreement and mandatory law determine any exclusion or limitation of liability.