What is the key difference between N3mo and Sem?

N3mo belongs to the Developer Tools category with local stdio execution, while Sem belongs to the Developer Tools category with local stdio execution.

How do I install N3mo or Sem in Claude Desktop or Cursor?

Copy the mcpServers JSON configuration snippet provided on this page into your claude_desktop_config.json or ~/.cursor/mcp.json file and restart your AI client.

Are N3mo and Sem free or paid?

N3mo operates under a Free / Open Source model (No auth required). Sem operates under a Free / Open Source model (No auth required).

Which MCP server has more tools and community activity?

N3mo lists 0 tools with 2 views and 24 GitHub stars. Sem lists 0 tools with 1 views and 3,334 GitHub stars.

Can I use both N3mo and Sem together in the same MCP host?

Yes! MCP hosts like Claude Desktop, Cursor, Windsurf, Cline, and VS Code support configuring multiple servers under the mcpServers object simultaneously.

Side-by-Side Model Context Protocol Comparison

N3mo vs Sem

In-depth architectural comparison of the N3mo and Sem MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.

At a Glance & Executive Verdict

N3mo

Developer Tools · Local stdio

Quality: 44/100 (Fair) | Auth: No auth required

Sem

Developer Tools · Local stdio

Quality: 49/100 (Fair) | Auth: No auth required

Verdict Summary: Choose N3mo if you need specialized Developer Tools tools running via a local process. Choose Sem if your workspace requires Developer Tools integration with local subprocess execution. Both servers can be configured concurrently in your client's mcpServers manifest.

Which MCP Server Should You Choose?

Choose N3mo when:

You need dedicated capabilities in the Developer Tools domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: No auth required (Free / Open Source).

Explore N3mo Details

Choose Sem when:

You need dedicated capabilities in the Developer Tools domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: No auth required (Free / Open Source).

Explore Sem Details

Feature & Specification Comparison

Specification	N3mo Developer Tools	Sem Developer Tools
Summary	N3MO: Code intelligence engine mapping repositories into queryable symbol graphs.	Entity-level code intelligence: semantic diff, impact analysis, blame, and context for AI agents
Category & Scope	Developer Tools	Developer Tools
Quality signal

Tools & Capabilities Breakdown

N3mo Tools (0)

No explicit tool names declared in metadata yet. Check project README on main listing page.

Sem Tools (0)

No explicit tool names declared in metadata yet. Check project README on main listing page.

Ready-to-Paste Client Configurations

Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).

N3mo Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "n3mo": {
      "command": "uvx",
      "args": [
        "n3mo"
      ]
    }
  }
}

Sem Configuration