Mcpb
Official@anthropic-ai/mcpb · by modelcontextprotocol
Desktop Extensions: One-click local MCP server installation in desktop apps
No known CVEs
No license
Maintained
Last commit 92d ago
Works with most clients
Transport: stdio, sse, http
2 tools · ~78 tok
Grade A · 0.0% of 200K ctx
MCPpedia last refreshed this data
Mcpb is an MCP server that desktop Extensions: One-click local MCP server installation in desktop apps. Its tool list has not been published yet over stdio, sse and http, requires no API key, and scores 89/100 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": {
"mcpb": {
"args": [
"-y",
"@anthropic-ai/mcpb"
],
"command": "npx"
}
}
}Are you the author?
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[](https://mcppedia.org/s/mcpb)
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What Mcpb does
⚠️ IMPORTANT NOTICE: This project is being renamed from DXT (Desktop Extensions) to MCPB (MCP Bundles) > If you're looking for the DXT tools, they have been renamed to MCPB. Please update your dependencies and tooling: > - .dxt files are now .mcpb files > - @anthropic-ai/dxt package will be moved to @anthropic-ai/mcpb
Test This Server
Run this in your terminal to verify the server starts. Then let us know if it worked — your result helps other developers.
npx -y '@anthropic-ai/mcpb' 2>&1 | head -1 && echo "✓ Server started successfully"
After testing, let us know if it worked:
Scored, not listed
Why this score
Five weighted categories — click any category to see the underlying evidence.
Score breakdown
89/100across 5 weighted dimensions
0255075100
29
15
20
15
10
−11
Security
Maintenance
Efficiency
Documentation
Compatibility
Categoriesclick a row to see evidence
Security
OSV.devNo known CVEs.
Checked @anthropic-ai/mcpb against OSV.dev.
Inventory
Tools (2)
Click any tool to inspect its schema.
~78 tokens total
Inventory
Prompts (1)
Prompt Template for AI ToolsA prompt template for AI tools like Claude Code to create MCP bundles following the MCPB specification, including steps to read specifications, create proper bundle structure, follow best practices, and test considerations
Community
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Frequently Asked Questions
- Is Mcpb safe to use?
- Mcpb has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments.
- How do I install Mcpb?
- Mcpb 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 Mcpb do?
- Mcpb provides 2 tools: Limitation, node_modules. See the full tools list on the server page for descriptions and parameters.
- What AI clients work with Mcpb?
- Mcpb is compatible with claude-desktop, cursor, claude-code. It uses stdio and sse and http transport.
- Is Mcpb actively maintained?
- Mcpb is less actively maintained — last commit was 92 days ago. It has 2,087 GitHub stars.
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Community
Discussion
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