The GrowBlocks CLI and MCP server. Build a browser game on GrowBlocks (three.js, Rapier physics, characters, multiplayer rooms, hosting) and ship it from your terminal or from an AI assistant.

npx growblocks new my-game        # a new game folder from the starter kit
cd my-game
npx growblocks dev                # play it at http://localhost:5173/play.html
npx growblocks login              # once: confirm a code in your browser
npx growblocks create my-game --name "My Game"
npx growblocks push               # check, upload a test build, print its test link
npx growblocks submit             # send it to GrowBlocks for review

Every new folder carries growblocks.mjs and .mcp.json, so Claude Code and Cursor opened in it get GrowBlocks tools: read the API, check the game with a screenshot, push a test build, read the review status, submit.

Elsewhere: claude mcp add growblocks -- npx -y growblocks mcp, or the Claude Code plugin (tools plus a skill): /plugin marketplace add Gioluan/growblocks-devkit then /plugin install growblocks@growblocks. Every tool takes dir, the game folder; the server also offers the prompts make_game and ship_game and the API as resources.

npx growblocks help lists every command. The CLI manages your games and builds only; collections, coins and earnings stay in your browser on growblocks.xyz. Dev Kit runs on Robinhood Testnet.