Your ideas. Your agents. One canvas.

A new way to create with AI.

Bring your AI agents, tools, and computers into one visual workspace. Build software, explore ideas, create visuals, and collaborate with AI, all in one place.

Less switching between tools. More time making things.

View on GitHub

Local-first · Bring your own AI

fix/login-redirect→main· 3 files
  • src/auth/redirect.ts
  • src/auth/redirect.test.ts
  • docs/auth.md

Illustration of the CastSpell canvas. Colours adapted to this page.

Your workflow shouldn't be scattered across ten different tools.

You have an idea. You open Claude. Then a terminal. Then a browser. Maybe a design tool. Before you know it, you're juggling windows, conversations, and unfinished tasks.

AI has made creating easier. But working with AI has become messy.

CastSpell brings everything together.

One canvas for your agents, tools, devices, and the work they do.

One canvas. Endless possibilities.

Whether you're building an app or exploring a creative idea, CastSpell adapts to the way you work.

Dev Mode

From idea to working software.

Bring your coding agents together. Delegate tasks, run parallel work, connect remote machines, and review changes without leaving your workspace.

Claude Code, Codex, opencode, and Hermes. Working together.

Coming in a future release.

Creative Mode

From imagination to creation.

Explore ideas, create visuals, prototype experiences, and work with AI across different creative tools.

A more visual way to create, experiment, and iterate.

You lead. Your agents get things done.

Give them a task.

Tell your lead agent what you want to accomplish.

Let them work together.

Agents can bring in helpers, divide tasks, and share results without you copying messages between windows.

Beyond your laptop.

Connect remote machines, Linux desktops, and Android emulators. Give your agents the environments they need.

See everything unfold.

Follow their progress, jump into conversations, and step in when they need your input.

Make it yours.

Review, refine, and decide what happens next. You're always in control.

Everything connected. Everything in sight.

  1. A canvas that makes sense.

    See your agents, computers, and devices as connected cards instead of buried terminal sessions.

  2. Multiple agents. One workflow.

    Different agents can tackle different parts of a project and bring their work back together.

  3. Stay in the loop.

    See what's running, what's finished, and what needs your attention, without checking every window.

  4. Keep your favourite tools.

    Use the AI tools and subscriptions you already have. No need to change how your agents run.

Not another AI assistant.

Most AI tools give you another chat window.

CastSpell gives you a workspace where your agents can work together, use computers, and help you bring ideas to life.

It's not about talking to more AI.

It's about making more things possible with AI.

Make something remarkable.

An app. A website. A new design. An experiment. Your next big idea.

Whatever you're creating, there's room for it on CastSpell.

Explore on GitHub

Your ideas. Your agents. One canvas.

Apache 2.0 · macOS Apple Silicon