CoCalc
Build and use software with AI.
Agents work in a shared project with your files, software, and collaborators. Open what they save, or take over the work yourself.
Start on CoCalc.ai See how it works
- Codex and Claude Code in one project
- Collaborators see edits live
- Restore earlier versions
Developed by SageMath, Inc. ยท Collaborative computing online since 2013
Agents work where your project lives.
Use the integrated Codex agent or Claude Code, or run other command-line agents in project terminals, all with the files, tools, and running services your collaborators already use. Claude Code is an experimental preview on sites that enable it and works with your personal Claude Pro or Max subscription.