Cursor Launches Live Apps: Cloud Agents Build, Add Postgres, Cursor SSO and Hosting, Run Security Checks, Then Share a Link

Core Background & Industry Pain Points

Cursor's November 5 changelog puts it plainly: agents have lowered the cost of writing code, but most apps and tools users build never leave localhost. Hosting, databases, auth and security review are often slower than the feature work itself. "Build Live Apps in Cursor" hands that last mile to the agent too.

Architecture Highlights & Internals

You start a cloud agent and tell it explicitly that you want to build an app. Cursor scaffolds the web app, spins up a Postgres database if needed, sets up authentication behind Cursor SSO and provisions hosting. If the app must reach your systems, such as a data warehouse, the agent asks for the secrets it needs. At publish time you pick a unique domain and get a live link. Apps can deploy from new or existing repos on Cursor Origin and GitHub; GitLab and other git providers are "coming soon".

Authoritative Benchmarks & Measured Scores

Cursor published no benchmarks or performance numbers. On safety, publishing runs deterministic and agentic security checks for common issues like secrets in app files or exposed credentials. If a check fails, the agent explains what to fix, and nothing goes live until checks pass and you explicitly publish. Team admins can see every app and secret, add their own review rules, approve blocked publishes and unpublish any app.

Developer Hands-on Guide

It is available on all paid plans with cloud agents enabled; update Cursor to try it. Apps sit behind Cursor sign-in and can be shared with specific people, groups or the whole team; individual plans can also share publicly. You can provision a Cursor API key so a script or Grok Bot can use the app. Inside Cursor, sales, ops, legal, finance and engineering already build event registration, seating, customer demos, onboarding, pipeline dashboards and service portals with it.