CoCalc

Build and use software with AI.

Describe what you want, and an agent builds it in a project with your files and software. Review the result beside the conversation, then refine it or take over yourself.

Start on CoCalc.ai See how it works

  • Codex and Claude Code in one project
  • Collaborators see edits live
  • Restore earlier versions

From an idea to something you can use.

Use the integrated Codex agent, Claude Code on sites that enable it, or other command-line agents in project terminals, all with the files, tools, and running services your collaborators already use. Claude Code can use CoCalc membership, a Claude Pro or Max subscription, or an Anthropic API key, where the site offers them.

  1. Describe the outcome: Say what you want and point the agent at your files. It works in the project, with the software installed there.
  2. Review the result: Open the app, report, or chart the agent saves, beside the conversation. Ask what it did and why.
  3. Refine or take over: Ask for another version, or open the files, notebooks, and terminals and continue yourself.

See agent workflows Try an app task Try an analysis task