How do I publish what Claude built?

Connect the Fine Structure connector once, and publishing is part of the sentence: "build it, publish it and give me the live link". Claude generates the app on your account, calls publish_app, and returns a public URL that works for anyone, with no repository, no terminal and no deploy step in between.

The gap this closes

Without a connector, Claude hands you code in a chat window. Making that real means creating a project, installing dependencies, choosing a host, provisioning a database, configuring environment variables and pointing a domain. Each of those steps loses people, and none of them is the thing anybody actually wanted to do.

What "published" means here

A public address on a free Fine Structure subdomain from the first minute, which you can send to anyone.
A managed database behind it, already holding whatever the app collects.
Optional user accounts, so chosen pages sit behind a login.
Your own domain with an automatically issued certificate, on paid plans.
A saved version for every change, so a bad edit is recoverable rather than final.

Where this route does not fit

If you already have a repository, a build pipeline and a team that deploys from git, a platform built around that workflow is the right tool and this is not trying to replace it. This route is for the case those platforms handle badly: there is no repository yet, because the application does not exist yet, and the person describing it is not going to open a terminal.

Connecting takes about two minutes

Open claude.ai and sign in. A free Claude account is enough; free accounts can add one custom connector.
Go to Settings, then Connectors, choose Browse connectors, and search for Fine Structure. Click Connect.
Sign in with a Fine Structure account (the free tier is enough, no credit card) and approve.
Back in the chat, ask for what you want built. The result is published at a public link.

In Claude Code: claude mcp add --transport http finestructure https://finestructure.ai/api/mcp, then run /mcp to authenticate. The full guide covers the desktop app and every other client.

Questions people ask

Does the link keep working when I close Claude?

Yes. The app runs on Fine Structure's hosting, not in the chat session. The conversation is the steering wheel, not the engine.

How do I change it after publishing?

Say what you want changed in the same conversation. Claude patches the files, validates and republishes, and the previous version stays restorable.

Can I see traffic afterwards?

Yes, ask. Claude reads visits, visitors and runtime errors for a published app, and can fix what it finds in the same message.

Where this is listed

Fine Structure is a Community connector in Anthropic's connector directory (listed, not verified or endorsed), and the same server is recorded in the official MCP registry as ai.finestructure/fine-structure, on Smithery and on Glama. The endpoint answers publicly at /api/mcp/manifest, so any claim on this page can be checked against the live tool list.