Sidekick

An AI sidekick for the Scratch editor: learn Scratch with it, or let it build games with you. Uses your Anthropic API key.

Sidekick is an AI helper that lives in Chrome's side panel next to the Scratch editor (scratch.mit.edu) and TurboWarp. It reads the project you have open and works in it with you. Learn mode is for people learning Scratch. Say what you want to make, and Sidekick teaches it one block at a time: it lights the block up in the palette and floats a ghost of it to where it goes, and you drag it in. It explains at your reading level, quizzes you when you want, and remembers which ideas you already know. Build mode is for making games. Describe the game and Sidekick plans it, writes the scripts, finds free art and sound, playtests what it made and tidies the code into labelled groups. You can watch it work: the editor follows it from sprite to sprite, scripts appear as they are written, and anything it reads glows. Also: Each project keeps its own conversation and plan, and your recent projects are one click away. Undo every change Sidekick made, from the panel. A parent lock, a spending cap and an AI usage setting (thrifty, balanced or full). Free art and sound from OpenGameArt, game-icons and OpenMoji, with credits kept for you. Sidekick uses Claude, an AI model by Anthropic, through your own Anthropic API key (create one at console.anthropic.com). You pay Anthropic for what you use; Sidekick shows the cost as you go. Your key, projects and conversations stay in your browser. Sidekick sends requests only to Anthropic for the AI, and to free asset sites when it searches for art or sound. Sidekick is not affiliated with or endorsed by the Scratch Foundation, MIT or TurboWarp. Scratch is a project of the Scratch Foundation.