From Code to URL: How Cursor Became a Full Development and Deployment Machine
Until recently, most of the tools and applications we built with the help of AI agents remained trapped on our localhost. We wrote code, ran it locally, and that was it—that's where it ended. But the new capability from Cursor is changing the rules of the game: now you can build full applications directly inside the editor and deploy them live with the click of a button, complete with a domain and a link you can share.
How Does It Work in Practice?
The process is based on the use of Cursor's Cloud Agents. Instead of just writing code, the agent receives a clear instruction to build an application. Once you define what you need, the system automatically performs the following actions:
- •Infrastructure building: The agent sets up the application scaffold.
- •Database: If necessary, the system sets up a Postgres database.
- •Permissions management: Setting up authentication behind Cursor's SSO.
- •Deployment: Provisioning servers and providing a live link to the application.
Security Above All
One of the biggest concerns in AI-based development is exposing secrets or insecure code. Cursor has implemented a significant layer of protection: before the application goes live, the system runs deterministic and agentic security checks. These checks look for sensitive code, accidentally exposed API keys, or open permissions. Nothing is published until the tests pass successfully and you choose to click the publish button.
Who Is This For?
This capability is currently available on all paid plans that include access to Cloud Agents. It opens the door to a variety of organizational and personal use cases:
- •Teams: You can share internal tools, dashboards for sales teams, or portals for managing engineering services, with access limited to organization users only.
- •Individual users: You can share applications publicly without the need to log in to Cursor.
- •Integrations: If the application needs to connect to external systems (like data warehouses), the agent will ask you for the necessary secrets without exposing them itself.
Summary and Conclusions
The ability to turn an idea into a live application within the development environment is a significant leap forward. It not only saves the headache of server configuration and CI/CD, but it also allows developers (and non-developers) to move tools from their personal computer to the real world at lightning speed. If you are already using Cursor, it is worth checking your Cloud Agents and starting to move projects from localhost to production.
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