nvim-mcp

What it does

nvim-mcp is an MCP server that bridges AI agents directly to a running Neovim instance. Unlike traditional plugins, it leverages Neovim's native msgpack-RPC socket, allowing agents to perceive the editor's state and interact with it as a human would.

Tools

• Buffer Access: Read current buffers, working directories, and cursor context.
• In-Memory Editing: Perform find-and-replace or full rewrites with immediate feedback and undo support.
• Command Execution: Run any Vim command (e.g., :w, :vsplit, macros).
• Keystroke Injection: Navigate the editor or trigger complex mappings.
• LSP Integration: Query diagnostics (errors/warnings) across the session.
• Visual Annotations: Add highlights and virtual text without modifying buffer content.

Installation

Install via uv (recommended):

curl -LsSf https://astral.sh/uv/install.sh | sh

Add to your client config (e.g., Cursor .cursor/mcp.json):

{
  "mcpServers": {
    "nvim-mcp": {
      "command": "uvx",
      "args": ["nvim-mcp"]
    }
  }
}

Supported hosts

Supported on Cursor, Claude Code, and Codex.