remark-mcp

An MCP (Model Context Protocol) server that connects AI assistants to a reMarkable tablet over its local USB HTTP interface.

Once configured, you can ask Claude (or any MCP-capable client) to browse your tablet's documents and read them — the server fetches the PDF from the tablet and renders each page as an image that the AI can see.

Prerequisites

• Node.js 18 or later

• A reMarkable tablet connected via USB cable with the USB web interface enabled

  • On the tablet: Settings → Storage → USB web interface — make sure it is turned on

  • The tablet must be reachable at http://10.11.99.1 (the default USB address)

Installation

git clone <repo-url>
cd remark-mcp
npm install

Connecting to Claude Code

Add the server to your Claude Code MCP configuration. In your project's .claude/settings.json (or the global ~/.claude/settings.json):

{
  "mcpServers": {
    "remarkable": {
      "command": "/absolute/path/to/node",
      "args": ["/absolute/path/to/remark-mcp/index.js"],
      "env": {
        "RM_MCP_LOG": "info",
        "RM_MCP_LOG_FILE": "/absolute/path/to/remark-mcp/rm-mcp.log"
      }
    }
  }
}

Important: The command field must be the full path to the node executable — Claude Code does not inherit your shell's PATH, so a bare node will fail. Find the path with which node (macOS/Linux) or where node (Windows).

Restart Claude Code after saving. You should see remarkable listed as an available MCP server.

Available Tools

Example prompts

List everything on my reMarkable tablet.
Open the folder called "Work" and show me what's inside.
Show me the document "Meeting Notes" from my tablet.

The download_pdf tool renders every page of the document as a PNG image at 2× viewport scale, so Claude can read handwritten notes and printed text.

Environment Variables

Note: stdout is reserved for the MCP protocol wire format. All logging goes to stderr or to RM_MCP_LOG_FILE. Never redirect stdout to a file when running the server.

Running

The server uses the MCP stdio transport. It is normally launched automatically by the MCP client (Claude Code), but you can start it manually to test:

npm start
# or
node index.js

Utility Script

fetch-pdf.js is a standalone script for downloading a single PDF directly to disk — useful for debugging connectivity before using the MCP server:

node fetch-pdf.js <document-id>
# saves <document-id>.pdf in the current directory

Tests

npm test

Tests use Node's built-in test runner (node:test) and stub out all external dependencies (network, PDF renderer, MCP SDK) so they run without a tablet attached.

Windows Notes

The server patches the pdf-to-png-converter path normalisation at runtime so that pdfjs-dist asset URLs use forward slashes on Windows. No manual changes to node_modules are required.