MCP server: inspect, manage, kill local dev servers. Stop guessing what's on :3000.
MCP server: inspect, manage, kill local dev servers. Stop guessing what's on :3000.
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Check the linked publisher documentation and your connected client's tool list. Names and availability can vary with the server version and account permissions.
| Tool | What it does |
|---|---|
| list_dev_servers | All listening dev servers w/ port, pid, framework, project, uptime, mem, cpu |
| port_info | Inspect single port — who holds it |
| kill_server | Kill by pid or port. Dry-run by default; pass confirm=true to execute |
| find_zombies | Detect long-running, idle, memory-heavy dev servers |
| port_conflict | Why is port X busy + 5 free alternatives nearby |
{
"mcpServers": {
"localhost": {
"command": "npx",
"args": ["-y", "localhost-mcp"]
}
}
}Add to claude_desktop_config.json, then restart Claude Desktop.
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