Show HN: Magic Sandbox – An AI app platform
Hacker News - AI
Aug 6, 2025 12:36
k_kelleher
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Summary
Magic Sandbox is a new AI app platform that allows developers to create and monetize AI-powered apps, enabling AI assistants to directly interact with community-published applications. The platform simplifies app development by handling authentication, data persistence, and payments, while ensuring security through sandboxed iframes. This approach streamlines the creation and deployment of custom AI tools, potentially accelerating innovation and monetization in the AI ecosystem.
I built Magic Sandbox, an AI app platform where your AI assistant can directly interact with Magic Sandbox apps published by the community. Check out the demo video to see it in action: https://www.loom.com/share/4a1d4aee83a5485197898f537e1cb397 Or head to https://magicsandbox.ai to go through the onboarding tutorial. Originally I set out to build a monetized version of OpenAI’s custom GPTs, where developers would earn money when users used their custom GPT. Eventually this evolved into a platform for AI powered apps, which expose not only context and capabilities to an LLM but also a UI to a human user. Magic Sandbox apps execute in a strictly sandboxed iframe and communicate via postMessage to request to persist data or hit backend endpoints (what I call Functions), among other capabilities. Because Magic Sandbox provides the AI assistant and handles auth, persisting data, and payments, building apps is super easy - it’s a great platform for publishing (and monetizing!) your vibe cod