AI Plugin Index
sem
CommunityMCP server by Ataraxy-Labs · updated · ★ 3.4k
Entity-level code intelligence: semantic diff, impact analysis, blame, and context for AI agents sem is a community project by Ataraxy-Labs, not verified by a company domain.
Last commit in the past day
Apache-2.0: permissive, fine for commercial use
Clear description, published package or server URL, 3,415 stars, original repository
Not checked yet. What we check
Install sem
Built from the published package, never by AIclaude mcp add sem -- npx -y @ataraxy-labs/semRun in your terminal. Add --scope user to use it in every project.
{
"mcpServers": {
"sem": {
"command": "npx",
"args": [
"-y",
"@ataraxy-labs/sem"
]
}
}
}Settings, Developer, Edit config. Paste into claude_desktop_config.json and restart.
{
"mcpServers": {
"sem": {
"command": "npx",
"args": [
"-y",
"@ataraxy-labs/sem"
]
}
}
}Add to ~/.cursor/mcp.json (all projects) or .cursor/mcp.json (this project).
{
"servers": {
"sem": {
"command": "npx",
"args": [
"-y",
"@ataraxy-labs/sem"
]
}
}
}Add to .vscode/mcp.json. VS Code uses "servers", not "mcpServers".
codex mcp add sem -- npx -y @ataraxy-labs/sem{
"mcpServers": {
"sem": {
"command": "npx",
"args": [
"-y",
"@ataraxy-labs/sem"
]
}
}
}Add to ~/.gemini/config/mcp_config.json (all projects) or .agents/mcp_config.json (this project).
gemini mcp add sem npx -y @ataraxy-labs/semGemini CLI was replaced by Antigravity CLI in June 2026 and remains only for enterprise licences and paid API keys.
MCP servers run with your permissions and can read what you give them access to. Some need an API key: check the README and add it under env in the sem block.
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sem: common questions
How do I install sem?
In Claude Code run claude mcp add sem -- npx -y @ataraxy-labs/sem. For Claude Desktop, Cursor and VS Code, paste the config shown above and restart. See the install guides.
Is sem the official server?
sem is a community project by Ataraxy-Labs, not verified by a company domain.
Is sem free?
The code is published under the Apache-2.0 licence. The service it connects to may have its own pricing.
Is sem safe to use?
It scores 92 of 100. Grades: maintenance A, licence A, quality A. The security check has not run for it yet. Review the code before you install. How grades work.
What are alternatives to sem?
Similar MCP servers: MCP Servers, N8n MCP, Claude Flow CLI, ha-mcp.
Does sem work with ChatGPT?
Not directly. It runs locally, and ChatGPT only connects to remote servers with a URL. Use it in Claude Code, Claude Desktop, Cursor, VS Code or Codex.