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A Site is an AI-built, fully-hosted website that Crevio creates from a one-paragraph brief — you describe the brand and what you sell, and an engineering agent writes the code, deploys it, and gives you back a live URL. You don’t pick a template or wire up hosting. You POST /sites with a prompt, Crevio kicks off an AI build, and you poll a Task until the site is live at a *.crevio.app subdomain. From there the API exposes the whole platform surface around the site: visitor analytics, the site’s own database, encrypted secrets (env vars), custom domains, and deployment history. Sites use the site_ prefix and have the object type site.

Build a site from a prompt

The prompt is a build brief — describe the brand, what you sell, and the look and feel. Crevio’s engineering agent turns it into a real codebase and deploys it. The response comes back immediately with a build_task_id you poll to watch the build.
The response includes the build task to poll plus the addressable URLs:
The site is created instantly, but is_live is false until the AI build finishes. The build runs as a Task — that’s what build_task_id is for.

Poll the build task

A build is an engineering agent Task. Poll it until its status settles, then check the site’s is_live.
Prefer not to poll? Subscribe to the task_run.completed webhook and react when the build finishes. See Webhooks.

Start from an existing GitHub repo

Already have a codebase? Pass repository (an owner/repo you’ve connected) instead of a prompt. Crevio mounts that repo as the site’s workspace, so the engineering agent — and your build/deploy pipeline — work directly against your code.
prompt is required unless you provide repository. One or the other must be present.

Access modes and visibility

access_mode controls who can reach the deployed site. Gating is enforced at the edge, not just in the app.
access_modeWho can view the site
publicAnyone with the URL (the default for websites)
accountSigned-in members of your account
admins_onlyAccount admins only
me_onlyJust you — useful while a build is in progress
The show_referral_badge flag toggles the “Powered by Crevio” badge. It defaults to on for all plans.

Custom domains

A new site lives at https://<subdomain>.crevio.app. To put it on your own domain, attach one — either bought through Crevio or one you already own — then verify it. The full purchase-and-attach flow lives in Domains; the short version:
Once verified, the site’s domain and domain_verified fields update.

The platform surface around a site

Beyond the website itself, each site exposes the operational tooling Crevio runs on its behalf.

Site analytics

Pull visitor and traffic analytics for a site.

Site database

Sites get a real database. Inspect the schema and run read queries through the API — handy for letting an agent answer “how many signups this week?” without leaving Crevio.

Site secrets (encrypted env vars)

Sites need API keys and config — Stripe keys, a third-party token, a feature flag. Store them as encrypted secrets that are injected into the deployed worker as environment variables. Values are write-once-readable: list shows masked values, and you reveal a single secret explicitly. A secret takes a name (required), a value (required), and an optional description. The name must be uppercase letters, digits, and underscores, and cannot start with a digit.
Keys prefixed with CREVIO_ are reserved for platform-injected values and can’t be set by hand. Removing a secret also removes it from the live worker.

Deployments

Every build and redeploy is recorded. List deployment history to see what’s live, building, or failed.
Deploys run asynchronously. Triggering a deploy returns immediately and the build continues in the background — a single deploy can take several minutes. Poll the deployments list (or watch for the deploy to finish) rather than expecting a synchronous result. You’ll see statuses like building, live, and failed with the live URL once it’s up.

Next steps

Domains

Buy a domain and attach it to your site.

Tasks

Understand the Task you poll while a site builds.

Webhooks

Get notified when a build completes instead of polling.

Usage & credits

See how AI builds and deploys draw down credits.