ext-apps MCP Server
modelcontextprotocol/ext-apps
[](https://agentrank-ai.com/tool/modelcontextprotocol--ext-apps/?utm_source=badge&utm_medium=readme&utm_campaign=agentrank_badge) Official repo for spec & SDK of MCP Apps protocol - standard for UIs embedded AI chatbots, served by MCP servers
claude mcp add agentrank -- npx -y agentrank-mcp-server Overview
modelcontextprotocol/ext-apps is a TypeScript MCP server. Official repo for spec & SDK of MCP Apps protocol - standard for UIs embedded AI chatbots, served by MCP servers Topics: ai, apps, mcp, mcp-apps, modelcontextprotocol, ui.
Ranked #4921 out of 24846 indexed tools.
Has 2,946 GitHub stars.
Has 48 contributors.
Ecosystem
Score Breakdown
2,946 stars → well-known project
Last commit 1mo ago → moderate activity
55/279 issues closed → many open issues
48 contributors → active community
No dependents → no downstream usage
Weights: Freshness 20% · Issue Health 20% · Dependents 22% · Stars 10% · Contributors 8% · How we score →
How to Improve
Matched Queries
From the README
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<h1>MCP Apps</h1>
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Build interactive UIs for MCP tools — charts, forms, dashboards — that render inline in Claude, ChatGPT and any other compliant chat client.
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<a href="#why-mcp-apps">Why</a>
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<a href="https://apps.extensions.modelcontextprotocol.io/api/documents/quickstart.html">Quickstart</a>
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<a href="https://apps.extensions.modelcontextprotocol.io/api/">API Docs</a>
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<a href="https://github.com/modelcontextprotocol/ext-apps/blob/main/specification/2026-01-26/apps.mdx">Spec</a>
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<a href="CONTRIBUTING.md">Contributing</a>
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<a href="https://github.com/modelcontextprotocol/ext-apps/actions/workflows/ci.yml"></a>
<a href="LICENSE"></a>
<a href="https://www.npmjs.com/package/@modelc Read full README on GitHub → Get the weekly AgentRank digest
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