Milanote by Cotlet MCP server

Milanote API and MCP server, self-hosted

A Milanote API and a Milanote MCP server you run on your own computer, in Python, on the session of your own Google Chrome. 30 of the 31 Milanote tools we run in production at Cotlet: boards, notes, links, to-do lists with due dates, columns, labels, trash, comments, sharing and export.

Milanote has no public API and no official MCP server. This repo gives you both:

• MCP server for Claude Code, Claude Desktop, Cursor, Codex and any MCP client, over stdio or HTTP. Setup
• REST API on http://127.0.0.1:8787/api/v1/milanote, with OpenAPI docs at /docs. Setup
• Python: call("getboard", boardid="1XiqwC1Mir4d4N"), plus 9 ready scripts in examples/.

It is for technical people who want to run it themselves, for noncommercial use only (license). If you want it running 24/7 on a server, kept working when Milanote changes its app, for a team or a business, use the hosted version at cotlet.dev.

git clone https://github.com/cotletdev/milanote-api-mcp-server.git && cd milanote-api-mcp-server
python3 -m venv .venv && . .venv/bin/activate && pip install -e .
milanote-mcp connect                               # reads your Milanote session from Chrome
milanote-mcp call list_boards
claude mcp add milanote -- "$PWD/.venv/bin/milanote-mcp" mcp

Contents

• How it works
• Requirements
• Install
• Connect your Chrome
• MCP server
• REST API
• Python and the example scripts
• All 30 tools
• Configuration
• Security and your Milanote account
• Errors
• Self-hosted or hosted

How it works

AI agent (MCP) / script (REST, Python) ──▶ milanote-mcp on your computer ──your Milanote cookies──▶ milanote.com
                                                     ▲
                         milanote-mcp connect ───────┘ reads them once from your Chrome (DevTools Protocol)

1. You sign in to Milanote in your own Chrome, the way you always do.
2. milanote-mcp connect attaches to that Chrome through the Chrome DevTools Protocol, reads the milanote.com cookies and your browser's time zone, and saves them to ~/.config/milanote-api-mcp/session.json, readable by your user only. It never sees or stores your password.
3. Reads are requests to the JSON endpoints of the Milanote web app on app.milanote.com/api. Changes go over the same socket.io channel the web app uses, sent as plain HTTP polling. Everything goes out with your cookies through curl_cffi, which copies Chrome's TLS fingerprint. No headless browser runs.

Milanote's session cookie lasts about a month. When Milanote signs you out, the server reads the cookies from Chrome again, if Chrome is open with remote debugging on.

Requirements

• Python 3.11 or newer.
• Google Chrome 144 or newer, signed in to Milanote. Any Chrome or Chromium works with a debugging port.
• macOS, Linux or Windows.
• Any Milanote plan. A free account stops at 100 cards, and the tools say so when Milanote refuses. Changing a board someone shared with you needs edit access to it.

Install

Shortened. The full README is on GitHub.