Ext Apps
Officialby modelcontextprotocol
Official repo for spec & SDK of MCP Apps protocol - standard for UIs embedded AI chatbots, served by MCP servers
3 tools GitHub
No known CVEs
No license
Actively maintained
Last commit 4d ago
Works with most clients
Transport: stdio, sse, http
3 tools · ~107 tok
Grade A · 0.1% of 200K ctx
MCPpedia last refreshed this data
Ext Apps is an MCP server that official repo for spec & SDK of MCP Apps protocol - standard for UIs embedded AI chatbots, served by MCP servers. Its tool list has not been published yet over stdio, sse and http, requires no API key, and scores 67/100 on MCPpedia's security, maintenance and efficiency rubric.
Step 1
Install in your client
Config is the same across clients - only the file and path differ.
CD
Supported in Claude Desktopstdio, sse, http · Node 18+
Paste into ~/Library/Application Support/Claude/claude_desktop_config.json
{
"mcpServers": {
"<name>": {
"args": [
"-y",
"@modelcontextprotocol/server-<name>",
"--stdio"
],
"command": "npx"
}
}
}Are you the author?
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[](https://mcppedia.org/s/ext-apps)
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What Ext Apps does
Build interactive UIs for MCP tools — charts, forms, dashboards — that render inline in Claude, ChatGPT and any other compliant chat client.
Test This Server
This server supports HTTP transport. Be the first to test it - help the community know if it works.
Scored, not listed
Why this score
Five weighted categories - click any category to see the underlying evidence.
Score breakdown
67/100across 5 weighted dimensions
0255075100
12
10
20
15
10
−33
Security
Maintenance
Efficiency
Documentation
Compatibility
Categoriesclick a row to see evidence
Security
OSV.devNo known CVEs.
No package registry to scan.
Inventory
Tools (3)
Click any tool to inspect its schema.
~107 tokens total
Community
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Frequently Asked Questions
- Is Ext Apps safe to use?
- Ext Apps has no known CVEs as of the latest MCPpedia security scan. Authentication requirements were not detected automatically - check the project's documentation before connecting in a shared environment.
- How do I install Ext Apps?
- Ext Apps supports copy-paste install configs on its MCPpedia page for Claude Desktop, Cursor, and Claude Code. Scroll to the Quick Install section and select your client.
- What can Ext Apps do?
- Ext Apps provides 3 tools: Specification, Resources, Contributing. See the full tools list on the server page for descriptions and parameters.
- What AI clients work with Ext Apps?
- Ext Apps is compatible with claude-desktop, cursor, claude-code. It uses stdio and sse and http transport.
- Is Ext Apps actively maintained?
- Ext Apps is actively maintained - last commit was 4 days ago.
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Community
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