Builder.io has released agent-native, an open-source MIT-licensed framework for building applications that work equally well as traditional apps, AI agents, HTTP endpoints, MCP servers, A2A peers, and CLI tools all from a single action definition.
The core idea is define work once, use everywhere: a developer writes one action with a Zod schema for input validation, and the framework exposes it across all app surfaces. The agent runtime ships with chat, tools, skills, memory, jobs, observability, and handoffs built in. The backend is agnostic: any Drizzle-supported SQL database and Nitro-compatible host works.
The framework includes starter apps: Clips (agent-native Loom), Plans (visual plan mode for coding agents), Design (agent-native Figma), Content (agent-native Notion/Obsidian), Analytics (open-source alternative to Amplitude and FullStory), and Chat (minimal ChatGPT-style app). All are customizable.
Builder.io, known for its visual page builder for React and other frameworks, is betting that the next generation of web applications will need to serve both human users and AI agents simultaneously.
