Magg is an MCP server that magg: The MCP Aggregator. Its tool list has not been published yet over stdio, sse and http, requires no API key, and scores 88/100 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": {
"magg": {
"args": [
"-y",
"@executeautomation/calculator-mcp"
],
"command": "npx"
}
}
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What Magg does
Test This Server
This server supports HTTP transport. Be the first to test it — help the community know if it works.
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Scored, not listed
Why this score
Five weighted categories — click any category to see the underlying evidence.
Score breakdown
88/100across 5 weighted dimensions
0255075100
30
13
20
15
10
−12
Security
Maintenance
Efficiency
Documentation
Compatibility
Categoriesclick a row to see evidence
Security
OSV.devNo known CVEs.
Checked @executeautomation/calculator-mcp against OSV.dev.
Inventory
Tools (7)
Click any tool to inspect its schema.
~302 tokens total
Community
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Frequently Asked Questions
- Is Magg safe to use?
- Magg 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 AGPL-3.0.
- How do I install Magg?
- Magg 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 Magg do?
- Magg provides 7 tools: search_servers, add_server, enable_server, disable_server, magg_status and 2 more. See the full tools list on the server page for descriptions and parameters.
- What AI clients work with Magg?
- Magg is compatible with claude-desktop, cursor, claude-code. It uses stdio and sse and http transport.
- Is Magg actively maintained?
- Magg is actively maintained — last commit was 21 days ago. It has 142 GitHub stars.
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Community
Discussion
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