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MCP Apps add interactive, synchronized workspaces to Gemini Enterprise chats

cloud.google.com by Dave Wang 5 min read Editor score 7/10

MCP Apps pair a tool with a live UI in a sandboxed iframe, letting users make local edits without another model turn while keeping the assistant synchronized. The guide outlines a practical pattern for richer tool interactions in enterprise agents.

What: MCP Apps pair an MCP tool with a live UI rendered in a sandboxed iframe inside Gemini Enterprise chat.
How: A private Cloud Run MCP server serves a widget and JSON-RPC endpoint; local edits synchronize with the assistant through AppBridge.
Why it matters: Engineers can build interactive workflows that avoid another model turn for every UI adjustment.

The three tiers route MCP tool calls and render the interactive workspace in chat. Sketched from the article's own text.

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