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Karellen LSP

Verified Integration
Author: @karellen•Category: ServerApplication
GitHub Repository
JSON-RPC 2.0
Protocol Standard
Sub-second
Execution Latency
Active
Operational Status
Tags:#Claude#Search#Database#API#Python#Git#AI#GitHub#Node.js

Client Configuration

— Connect Karellen LSP to Claude Desktop or Cursor in seconds
{
  "mcpServers": {
    "karellen-lsp": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-karellen-lsp"
      ],
      "env": {}
    }
  }
}
Paste into ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows).
Architecture & Capabilities

System Overview

Bridges Large Language Models to Language Server Protocol servers for structured code intelligence, providing definitions, references, call hierarchies, and diagnostics.

Indexed Date

7/23/2026

License

Open Source

Protocol Layer

stdio / SSE RPC

Frequently Asked Questions

Architecture and operational details for Karellen LSP

It uses a multi-session shared daemon architecture. This means multiple LLM sessions (e.g., Claude Code instances) can share a single daemon process and LSP server instance per project, preventing redundant indexing and optimizing memory and CPU resources.

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