Sem

Developer Tools npm v0.28.2

Entity-level code intelligence: semantic diff, impact analysis, blame, and context for AI agents

View source ↗ Website ↗ Generate config for multiple servers More servers

Install

Pin version registry version 0.28.2

npm
npx -y @ataraxy-labs/sem

npm
npx -y @ataraxy-labs/sem@0.28.2

Setup by client

Pick your client — the config below is generated for this server (local stdio). Copy respects the “Pin version” switch above.

claude_desktop_config.json

{
  "mcpServers": {
    "sem": {
      "command": "npx",
      "args": [
        "-y",
        "@ataraxy-labs/sem"
      ]
    }
  }
}

{
  "mcpServers": {
    "sem": {
      "command": "npx",
      "args": [
        "-y",
        "@ataraxy-labs/sem@0.28.2"
      ]
    }
  }
}

Format verified against the official Claude Desktop docs ↗.

terminal

claude mcp add sem -- npx -y @ataraxy-labs/sem

claude mcp add sem -- npx -y @ataraxy-labs/sem@0.28.2

Format verified against the official Claude Code docs ↗.

.cursor/mcp.json

{
  "mcpServers": {
    "sem": {
      "command": "npx",
      "args": [
        "-y",
        "@ataraxy-labs/sem"
      ]
    }
  }
}

{
  "mcpServers": {
    "sem": {
      "command": "npx",
      "args": [
        "-y",
        "@ataraxy-labs/sem@0.28.2"
      ]
    }
  }
}

Format verified against the official Cursor docs ↗.

.vscode/mcp.json

{
  "servers": {
    "sem": {
      "command": "npx",
      "args": [
        "-y",
        "@ataraxy-labs/sem"
      ]
    }
  }
}

{
  "servers": {
    "sem": {
      "command": "npx",
      "args": [
        "-y",
        "@ataraxy-labs/sem@0.28.2"
      ]
    }
  }
}

Format verified against the official VS Code docs ↗.

mcp_config.json

{
  "mcpServers": {
    "sem": {
      "command": "npx",
      "args": [
        "-y",
        "@ataraxy-labs/sem"
      ]
    }
  }
}

{
  "mcpServers": {
    "sem": {
      "command": "npx",
      "args": [
        "-y",
        "@ataraxy-labs/sem@0.28.2"
      ]
    }
  }
}

Format verified against the official Windsurf docs ↗.

GitHub

⭐ 3,411 stars · 最近更新于 16 天前 · Apache-2.0 license

About this server

Part of the Ataraxy Labs stack : agent native infrastructure for software development. See also: weave (entity level git merge driver) · inspect (semantic code review) · opensessions (tmux sidebar for coding agents). Read the manifesto: labs.com/ thesis · Essays: labs…

Summary from the project README — github.com/Ataraxy-Labs/sem

Distributed as npm, listed under Developer Tools. Review our MCP security guide before granting access to real data.

Frequently asked questions

What does the Sem MCP server do?

How do I install Sem?

Run the install command shown above, then paste the config for your client (Claude Desktop, Claude Code, Cursor, VS Code or Windsurf) into its MCP settings and restart the client.

Is Sem free to use?

The MCP server itself is free to install. The source is public on https://github.com/Ataraxy-Labs/sem. Any third-party service it calls may require its own API key and account.

Which clients support Sem?

Any MCP-compatible client can use it, including Claude Desktop, Claude Code, Cursor, VS Code, Windsurf and custom agents.

Add this badge

Publish this server? Link back with a badge on your README or site — copy either snippet.

Markdown

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HTML

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