[Repo] modelcontextprotocol/ext-apps: Official repo for spec & SDK of MCP Apps protocol - standard for UIs embedded AI chatbots, served by MCP servers

The modelcontextprotocol/ext-apps repository is the official specification and SDK for the MCP Apps protocol, a standard for embedding AI chatbots with UIs served by MCP servers. Written in TypeScript with 1,776 stars, it provides the foundational protocol and tools for building integrated AI applications.

Key Points

• •MCP Apps protocol is the official standard for embedding AI chatbots with UIs served by MCP servers
• •Repository provides both specification and SDK for implementing MCP Apps protocol
• •Enables seamless integration of AI-powered applications within existing MCP server infrastructure
• •Written in TypeScript, making it accessible for web and Node.js development environments
• •Active project with recent updates (last pushed March 2026), indicating ongoing development and maintenance
• •Part of the Model Context Protocol ecosystem, designed for standardized AI application communication
• •Supports building embedded AI chatbot interfaces that communicate with MCP servers
• •Open-source project with significant community adoption (1776 stars)

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