How do I deploy an app from Claude Code?

Add the Fine Structure MCP server and deployment becomes a chat instruction: claude mcp add --transport http finestructure https://finestructure.ai/api/mcp, then /mcp to authenticate. From that point "publish this and give me the link" is a valid command.

It is the same 82-tool surface the Claude app gets: create apps, patch files with automatic saved versions, shape the database, publish, attach domains, read analytics and errors. There is also a plugin with slash commands: /plugin marketplace add finestructure-ai/claude-plugin then /plugin install finestructure@finestructure.

What the connector actually does

Generates a complete application from a prompt: React pages, a managed database, authentication, styling.
Publishes to a live URL on a free subdomain, and connects a custom domain with automatic TLS on paid plans.
Edits existing apps: reads files, patches them, validates, republishes. Every change keeps a restorable saved version.
Creates database schemas and records, queries them back, and reports on them.
Reads traffic analytics and runtime errors for published apps, then fixes what it finds.
Creates standing AI agents that run on a schedule and can message their verified owner on WhatsApp and by email.
82 tools over the OAuth surface and 13 starter prompts, documented at finestructure.ai/api/mcp/docs.

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

How do I know the connection is live?

claude mcp list should show finestructure as Connected rather than Needs authentication, and asking the assistant to list your Fine Structure apps should return real names.

Do I need an API key?

No. The connector uses OAuth: you sign in on a Fine Structure page and approve. No key, no client ID, no secret to paste anywhere.

Does this work in Cursor, Windsurf or Zed too?

Yes, the same endpoint over streamable HTTP. Each client's exact click path is documented on the connect pages, linked below.

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.