MCP Apps are the last piece in moving toward a new web - one that's "nearly" headless. Autonomous agents, not humans, will interact with most websites through MCP, APIs, and other data channels. Websites and browsers become obsolete, replaced by personal assistants that orchestrate tasks on our behalf. In rare cases, agents will fall back to browser capabilities to navigate sites that aren't yet agent-ready.
But we'll still need the last mile.
Some moments still require human eyes and human input: choosing a seat at a venue, completing a check-in, reviewing a 3D model, verifying intent on important decisions. This is where MCP Apps come in - letting tools, websites, and services send composable, interactive chunks of UI directly to agents, exactly when needed, maintaining brand and identity.
We'll explore the full cycle of this nearly headless web: the infrastructure required to support autonomy and trust, the new UI layer, and how assistants are becoming the new browsers.
MCP Apps redefine the web's interface. Headless, but with a human eye at the end.
This talk has been presented at JSNation 2026, check out the latest edition of this JavaScript Conference.






















