EAuth
Sign-in for your applications, to OAuth 2.1 and OpenID Connect, with passkeys and SAML.
- Free, with no user limit and no paid tier
- Passkeys and a second factor included
- An export with the password hashes, if you leave
Elchi Studios, Oberägeri, Switzerland
With software we build ourselves and run in Switzerland and the EU.
Solutions
Processes that cost companies and administrations time today, and what we replace them with: by industry first, then by task.
Products
Two products we build and run ourselves. More follow when they are finished, not before.
Sign-in for your applications, to OAuth 2.1 and OpenID Connect, with passkeys and SAML.
Business email on your own domain, in the browser and in every mail app.
Offers
Besides the products we take on single pieces of work: company websites at a fixed price and bounded technical mandates.
Company websites at a fixed price, built to be found, and run on the same servers.
Bounded technical mandates for systems that are too slow, too costly or too fragile.
Infrastructure
Over every city where one of our servers stands, we looked for the bright star nearest the zenith at midnight on 3 October 2026, the night the cluster went live. Joined like the servers are joined, those stars are our mark.
How the cluster is builtCluster inventory, as of 8 October 2026. Not counting the DNS services Cloudflare and ClouDNS, which only resolve names.
Trust
Accounts, mailboxes and content sit on our servers in Switzerland, Germany, the Netherlands and France, at European providers. For two tasks we still use services of US groups, and we name them: Resend for notification mails such as an address confirmation, and Stripe for EMX payments. Cloudflare only holds our DNS zones.
Knowledge
No sales department in between. Your enquiry is answered by the people who build your project.