No need to login or sign up
Start from the place you already work: your inbox.
Your Website. One Email.
Casso is an AI agent that builds and maintains websites entirely through email.
No login. No signup. Start with a button, then continue in your inbox.
Meet Casso
Hi, I'm Casso
An email-based AI agent to build, deploy and maintain your websites.
No login
No signup
Fast static hosting
Email-based updates
Human backup
Benefits
Benefits of using me.
Update your website from your phone
Send edits by email whenever you notice something that should change.
Fast website load times
Sites are published as lightweight static pages designed to load quickly.
Human support when I can't do it
If a request needs capabilities outside the agent, Casso can route the conversation for human follow-up.
Easily connect custom domains
Bring a domain you own, update the DNS records, and Casso can connect it to the hosted site.
SEO optimized structure
Pages can include clear titles, headings, metadata, internal links, and readable content structure.
Free Casso hosting
Websites can stay live on a .bycasso.com domain indefinitely at no cost.
Bring your own domain
Casso can help connect custom domains you already own. Casso does not purchase or register domains on your behalf.
Plain-language edits
Ask for copy, layout, image, page, and navigation updates in normal email language.
Hosting + domains
Free to publish. Simple to connect when you own the domain.
Use a free Casso subdomain for as long as you want. If you have a custom domain from an external provider, Casso can guide the DNS connection process.
Start here
Give Casso an inbox to reply to.
Click through to the get-started page, enter your email, and check your inbox for next steps.