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.

See agent workflows Compare with agent sandboxes

One project, many workflows.

Keep notebooks, terminals, code, documents, services, discussion, history, and recovery in one durable project.

Browse feature workflows Read the documentation

Choose how CoCalc runs.

Start with hosted CoCalc.ai, run CoCalc locally or on one VM, or evaluate a customer-operated private deployment.

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