Terms of service

Effective 31 August 2026.

The service

Desiderius is an informational decision-support service operated by HJG Veldkamp in the Netherlands. It helps you organise assumptions, calculations, sources and judgement. It does not make the decision for you.

Accounts and saved work

You are responsible for accurate account information, a secure password and activity under your account. Saved scenarios remain under your control and may be exported or deleted where the service provides those controls.

Responsible use

Do not misuse the service, attempt unauthorised access, upload unlawful material or enter credentials, payment details or unnecessary sensitive data. Your inputs remain your responsibility.

Availability and accuracy

We work to keep the service and its source data available, current and correct, but uninterrupted operation and error-free output are not guaranteed. Important decisions require verification against the cited source or a qualified professional. Nothing in these terms limits rights or remedies that cannot lawfully be limited.

Changes and contact

Material changes will be dated on this page. Dutch law applies, subject to mandatory consumer protections in your country. Questions or complaints: privacy@desiderius.ai.