Four modes
Agent to build, Ask for read-only answers, Plan for questions and an editable plan with a Build button, and Debug to reproduce and fix the root cause.
Features
A complete coding workspace, with an agent that does the work
Altarus Nexus combines a browser IDE, an AI coding agent, cloud machines and a built-in data layer. Here is everything included today, and what is coming next.
AI coding agent
Nexus plans, builds, tests and reviews
Nexus is the agent inside every project. It works like a careful engineer: it reads the code first, asks when something is unclear, and shows its evidence.
Browser verification
After UI changes, Nexus opens the app in a real browser, fills forms, clicks through flows, and attaches screenshots and a video recording.
Built-in code review
A second agent reviews the changes for bugs, security issues and missing tests. Nexus fixes what it finds before handing off.
Parallel and background agents
Run several agents on their own branches at once, compare their results, or let a background agent finish a task and open a pull request.
Slash commands
/deep-research, /review, /test, /verify, /commit and your own project commands. Write them once in .nexus/commands and share them with the team.
You stay in control
Pick Manual, Auto or Full auto. Every change is a pending diff you can keep or undo, with checkpoints to roll back to.
Tab completions
Fast multi-line suggestions as you type, plus inline edits and terminal command help.
Project memory
Nexus remembers decisions, conventions and pitfalls for each project, and follows your AGENTS.md and rule files.
Pause and resume
If credits run out mid-task, the agent pauses at a safe point and continues from the same step once you add more.
Cloud development environment
A real machine for every project
Each project runs on its own isolated Linux machine in the cloud, so the code you write is the code that runs.
Ready in seconds
A terminal, your dev servers and live previews with shareable links. No local setup.
Pauses when idle
Machines pause after a few minutes of inactivity so you only pay for use, and keep running while the agent works.
Saved copies of your files
Project files are backed up outside the machine and restored automatically if a machine ever has to be replaced.
Live previews
Every port gets a private preview. Share a link with a teammate or client when you are ready.
The editor you know
A VS Code-style editor with language servers, a debugger, Open VSX extensions and real-time collaboration.
Network controls
Choose open internet, an allow-list of hosts, or no internet at all for each project.
Databases and storage
Postgres and file storage, linked automatically
When your app needs data, Nexus suggests the built-in Postgres database or file storage. Accept with one click, and the agent creates it, links it to your project and wires up the code. Prefer another provider? Decline, add its keys on the Secrets page, and Nexus uses that instead.
Postgres databases
Separate dev and production databases, point-in-time restore on paid plans, and a SQL console in the app.
File storage buckets
Upload user files from your app with a simple storage API and signed links.
A free storage tier
Every organization starts with a free database and file storage for prototypes and small apps. Move to Pro ($25/month) when your app grows.
No keys to copy
Connection details reach your app as environment variables like DATABASE_URL.
GitHub and teams
Fits the way your team already ships
GitHub integration
Import repositories, work on branches, commit and open pull requests from the workspace.
Secrets management
Project and account secrets, encrypted with managed keys, with an access log and per-environment values.
Roles and controls
Owner, admin, member and viewer roles, spending caps, usage analytics and an audit log. Single sign-on on Teams, plus SCIM on Enterprise.
Scheduled agents
Run an agent on a schedule, for example a weekly dependency check that opens a pull request.
Coming soon
From writing code to running a business on it
We are building the rest of the path from idea to launch into the same workspace.
One-click hosting
Deploy your app to a production server from the workspace.
Custom domains
Connect a domain with automatic HTTPS, and buy new ones in the app.
Payments
Connect your Stripe account and let Nexus set up products and checkout.
Automations
Bots that check your code, database and live app on a schedule.
Your next idea starts here.
Open a project in your browser and let Nexus help you build it. Your first month is free.
$0 today · Cancel any time · Your code stays yours