Cubbi is an MCP server that monadical container CLI tool for running sandboxed MCP clients & servers. Its tool list has not been published yet over stdio, sse and http, requires no API key, and scores 49/100 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": {
"cubbi": {
"args": [
"cubbi"
],
"command": "uvx"
}
}
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What Cubbi does
Cubbi is a command-line tool for managing ephemeral containers that run AI tools and development environments, with support for MCP servers. It supports Aider, Crush, Claude Code, Goose, Opencode.
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.
uvx 'cubbi' 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
49/100across 5 weighted dimensions
0255075100
22
14
10
−51
Security
Maintenance
Efficiency
Documentation
Compatibility
Categoriesclick a row to see evidence
Security
OSV.devNo known CVEs.
Checked cubbi against OSV.dev.
Community
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Frequently Asked Questions
- Is Cubbi safe to use?
- Cubbi 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. Licensed under MIT.
- How do I install Cubbi?
- Cubbi 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 AI clients work with Cubbi?
- Cubbi is compatible with claude-desktop, cursor, claude-code. It uses stdio and sse and http transport.
- Is Cubbi actively maintained?
- Cubbi is less actively maintained — last commit was 202 days ago. It has 10 GitHub stars.
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Community
Discussion
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Has anyone used this with Cursor?How do you handle auth?Any alternatives?
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