MCP Standardnotes

Name: MCP Standardnotes
Author: lozit

by lozitversion 0.6.0i★ –iRuns on your computer

Registry nameio.github.lozit/mcp-standardnotes

Install

Overview

Description from the maker (original English)

End-to-end encrypted access to a Standard Notes vault (protocol 004, local stdio only).

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
UsageiNot measured yet★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Runs on your computer
Transport: stdio
Category: Docs, sheets & office work
You need to fill in: SN_EMAIL

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 1 of 1 passed
Runs on your computer with your user’s permissions (files, network, apps).
You fill in yourself: SN_EMAIL, SN_SERVER_URL, SN_CERT_FINGERPRINT

You need

npmNode.js installed (for the npx command)

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

{
  "mcpServers": {
    "standardnotes": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-standardnotes"
      ],
      "env": {
        "SN_EMAIL": "your-value",
        "SN_SERVER_URL": "your-value",
        "SN_CERT_FINGERPRINT": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add standardnotes --env SN_EMAIL=your-value --env SN_SERVER_URL=your-value --env SN_CERT_FINGERPRINT=your-value -- npx -y mcp-standardnotes

Fill in the empty values before running it.

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "standardnotes": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-standardnotes"
      ],
      "env": {
        "SN_EMAIL": "your-value",
        "SN_SERVER_URL": "your-value",
        "SN_CERT_FINGERPRINT": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "standardnotes": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "mcp-standardnotes"
      ],
      "env": {
        "SN_EMAIL": "your-value",
        "SN_SERVER_URL": "your-value",
        "SN_CERT_FINGERPRINT": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.

Your choice stays on this device in a cookie; no account needed.

Values you fill in

SN_EMAIL required env
Standard Notes account email. The password is prompted once via `npx mcp-standardnotes-login` and the session is persisted in the OS keychain.
SN_SERVER_URL env
Standard Notes sync server URL. Defaults to the official cloud if unset.
SN_CERT_FINGERPRINT env
Optional SHA-256 TLS certificate fingerprint for pinning a self-hosted server.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

Runs on your computer; the tool list appears in your AI app after you install it.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 7, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account lozit, which owns the repo
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
– Not applicable
Endpoint responds
This one runs on your computer; there is no internet endpoint
– Not applicable
Sign-in with OAuth
Runs on your computer and uses local settings instead
… Not checked yet
No hidden instructions in tool descriptions
Runs on your computer; we can only read tool lists from internet endpoints

Compared with others in Docs, sheets & office worki

More stars than 0% of the other 2186 servers in this category
Published to the registry more recently than 24% of the other 2186 servers in this category
Basic checks equal to or better than 100% of the other 2186 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is MCP Standardnotes safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

You need to fill in: SN_EMAIL

Does it run on my computer or in the cloud?

It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).

Is it still maintained?

The GitHub repo last changed –, and the latest version (0.6.0) reached the registry 3 months ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Node.js on your computer.

What can I use instead?

In the same category: Agent-Native Calendar, Excel MCP Server, MCP Server for Excel

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Install

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

mcp-standardnotes

Give Claude secure read/write access to your [Standard Notes](https://standardnotes.com/) vault — end-to-end encrypted, local stdio only, zero cloud middleman.

Ask Claude to summarize your notes, draft new ones, organize tags, search across your vault — all while your master key stays on your machine. Works with Claude Code, Claude Desktop, and any MCP-compatible client.

Disclaimer. This is an unofficial third-party integration. Not affiliated with, endorsed by, or sponsored by Standard Notes Ltd. "Standard Notes" is a trademark of Standard Notes Ltd.

Why

🔒 End-to-end encrypted. All decryption happens locally using audited libsodium primitives (Argon2id + XChaCha20-Poly1305 IETF). Your password never leaves RAM; your master key never leaves your machine.
🔌 Local stdio only. No network port is ever opened by this server.
🔑 OS keychain for session storage. macOS Keychain, Linux libsecret, Windows Credential Vault — never plaintext files.
☁️ Works with the official cloud or self-hosted Standard Notes servers.

Features

Tool	What it does
`notes_list` / `notes_search` / `notes_get`	Browse and search your notes (filter by tag with `tag: " "`)
`notes_create` / `notes_update` / `notes_delete`	Write notes (markdown, super, code, rich-text, task, spreadsheet, plain-text)
`notes_create_many`	Batch-create up to 50 notes in one sync push
`notes_stats`	Vault stats: counts, sizes, oldest/newest/largest note
`tags_list` / `tags_get` / `tags_create` / `tags_update` / `tags_delete`	Full tag CRUD
`tags_attach` / `tags_detach`	Link/unlink tags to notes
`sync`	Force a sync with the server

notes_create and notes_update accept an optional tags: string[] (tag UUIDs) to link tags at write time.

Requirements

Node.js ≥ 20
A Standard Notes account on protocol 004 (default for any account created or upgraded since 2020)
macOS, Linux, or Windows with a working OS keychain

Quickstart

1. Install

npm install -g mcp-standardnotes

Or run from a clone if you prefer:

git clone https://github.com/lozit/mcp-standardnotes.git

cd mcp-standardnotes npm install && npm run build

2. Log in once

mcp-standardnotes-login         # if installed globally

or, from a clone:

npm run login

You'll be prompted for email and password. The password derives your master key in memory (Argon2id) and is never written to disk. An encrypted session is stored in your OS keychain; subsequent runs reuse it automatically. At the end of login, you're offered to wire the server into Claude Desktop in one step — accept it, restart Desktop, done.

3. Hook it up to Claude

Claude Desktop (macOS / Windows) — easiest path, run:

mcp-standardnotes-install

This writes the right entry (absolute Node + binary paths, your email from the keychain) into ~/Library/Application Support/Claude/claude_desktop_config.json (or %APPDATA%/Claude/claude_desktop_config.json on Windows), backing up any existing config first. Quit Claude Desktop fully (⌘Q) and relaunch.

Claude Code — let the claude CLI do it:

mcp-standardnotes-install code   # prints the exact `claude mcp add` command

Or add to ~/.claude.json / .mcp.json manually:

"mcpServers": { "mcp-standardnotes": { "type": "stdio", "command": "mcp-standardnotes", "env": { "SN_EMAIL": "you@example.com" } } } }

Then /mcp to reconnect.

Any other MCP client — run node dist/index.js with SN_EMAIL set in the environment. Transport is stdio.

Self-hosting Standard Notes? See docs/self-hosted.md for the docker-compose recipe and how to pin your TLS certificate.

Want a remote agent (Hermes on a VPS, self-hosted LangGraph, etc.) to use your vault? See docs/remote-agent-bridge.md for the full Cloudflare Tunnel + MCP Portals setup. Your master key stays on your Mac; the agent talks to a public HTTPS endpoint gated by a Cloudflare service token, and Portals handles automatic MCP tool discovery, multi-server bundling, and Access application generation.

Configuration

Variable	Default	Description
`SN_EMAIL`	required	Your SN account email. Must match what you used with `npm run login`.
`SN_SERVER_URL`	`https://api.standardnotes.com`	Sync server URL. Change for self-hosted instances.
`KEYCHAIN_SERVICE`	`mcp-standardnotes`	Override the keychain service name (useful for multiple accounts).
`SN_CERT_FINGERPRINT`	unset	SHA-256 TLS cert pin for self-hosted servers (64 hex chars, colons optional). See docs/self-hosted.md.

Security at a glance

Password in RAM only during key derivation. Never logged, never stored.
Session + master key hex → OS keychain only. Never plaintext files.
stdio transport only. No HTTP port, ever.
All logs go to stderr, routed through a redactor that masks passwords, keys, JWTs, and token-like strings.
All tool inputs validated by zod.
npm audit HIGH/CRITICAL is a merge blocker in CI.
Only the protocol 004 *framing* is implemented locally; all cryptographic primitives come from libsodium-wrappers-sumo.

Full threat model and deep-dive: docs/protocol-004.md. Security policy, vulnerability reporting, and dependency-advisory notes: SECURITY.md.

Troubleshooting

Common issues and fixes: docs/troubleshooting.md.

Logout

SN_EMAIL=you@example.com mcp-standardnotes-logout

or, from a clone:

SN_EMAIL=you@example.com npm run logout

Roadmap

Upcoming work tracked in ROADMAP.md.

Contributing

Contributions welcome. See CONTRIBUTING.md for setup, tests, and PR checklist.

License

MIT — use it, fork it, ship it.

Credits

Standard Notes for the encryption design and public API.
Model Context Protocol and Anthropic for the MCP SDK.
libsodium by Frank Denis, exposed via libsodium-wrappers-sumo.

MCP Standardnotes

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

Values you fill in

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Docs, sheets & office worki

Common questions

Alternatives

Agent-Native Calendar

Excel MCP Server

MCP Server for Excel

README from the maker

mcp-standardnotes

Why

Features

Requirements

Quickstart

1. Install

2. Log in once

or, from a clone:

3. Hook it up to Claude

Configuration

Security at a glance

Troubleshooting

Logout

or, from a clone:

Roadmap

Contributing

License

Credits