Nextcloud Organizer MCP

Name: Nextcloud Organizer MCP
Author: Vando-sketch

by Vando-sketchversion 0.2.1i★ –iRuns on your computer

Registry nameio.github.Vando-sketch/nextcloud-organizer-mcp

Install

Overview

Description from the maker (original English)

Manage Nextcloud tasks, calendar events and notes from Claude over CalDAV and the Notes API.

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
UsageiVery new↓ 31/wk · ★ –

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: Streamable HTTP
Category: Docs, sheets & office work
You need to fill in: NEXTCLOUD_BASE_URL, NEXTCLOUD_USERNAME, NEXTCLOUD_APP_PASSWORD, PUBLIC_BASE_URL, MCP_OAUTH_PASSWORD

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: NEXTCLOUD_BASE_URL, NEXTCLOUD_USERNAME, NEXTCLOUD_APP_PASSWORD, PUBLIC_BASE_URL, MCP_OAUTH_PASSWORD

Values marked secret are keys to your account. Never share them or paste them into a chat.

You need

PyPIPython’s uv installed (for the uvx 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": {
    "nextcloud-organizer": {
      "command": "uvx",
      "args": [
        "nextcloud-organizer-mcp"
      ],
      "env": {
        "NEXTCLOUD_BASE_URL": "your-value",
        "NEXTCLOUD_USERNAME": "your-value",
        "NEXTCLOUD_APP_PASSWORD": "your-value",
        "PUBLIC_BASE_URL": "your-value",
        "MCP_OAUTH_PASSWORD": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add nextcloud-organizer --env NEXTCLOUD_BASE_URL=your-value --env NEXTCLOUD_USERNAME=your-value --env NEXTCLOUD_APP_PASSWORD=your-value --env PUBLIC_BASE_URL=your-value --env MCP_OAUTH_PASSWORD=your-value -- uvx nextcloud-organizer-mcp

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": {
    "nextcloud-organizer": {
      "command": "uvx",
      "args": [
        "nextcloud-organizer-mcp"
      ],
      "env": {
        "NEXTCLOUD_BASE_URL": "your-value",
        "NEXTCLOUD_USERNAME": "your-value",
        "NEXTCLOUD_APP_PASSWORD": "your-value",
        "PUBLIC_BASE_URL": "your-value",
        "MCP_OAUTH_PASSWORD": "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": {
    "nextcloud-organizer": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "nextcloud-organizer-mcp"
      ],
      "env": {
        "NEXTCLOUD_BASE_URL": "your-value",
        "NEXTCLOUD_USERNAME": "your-value",
        "NEXTCLOUD_APP_PASSWORD": "your-value",
        "PUBLIC_BASE_URL": "your-value",
        "MCP_OAUTH_PASSWORD": "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

NEXTCLOUD_BASE_URL required env
Base URL of your Nextcloud instance, e.g. https://cloud.example.com (must be https:// unless local).
NEXTCLOUD_USERNAME required env
Nextcloud username.
NEXTCLOUD_APP_PASSWORD secret required env
Nextcloud app password (Settings > Security > Devices & sessions), never the account password.
PUBLIC_BASE_URL required env
The exact public URL clients use to reach this server; required for the OAuth 2.1 flow.
MCP_OAUTH_PASSWORD secret env
Password for the OAuth consent page; required unless the server is bound and reached locally only.

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 9, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account Vando-sketch, 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 3605 servers in this category
Published to the registry more recently than 44% of the other 3605 servers in this category
Basic checks equal to or better than 100% of the other 3605 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 Nextcloud Organizer MCP 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: NEXTCLOUD_BASE_URL, NEXTCLOUD_USERNAME, NEXTCLOUD_APP_PASSWORD, PUBLIC_BASE_URL, MCP_OAUTH_PASSWORD

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 (0.2.1) reached the registry 40 days ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Python (uv) on your computer.

What can I use instead?

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

Alternatives

Servers in the same category from other makers, sorted by stars.

Reading a card:↓ Downloads per weeki★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

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Install

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by sbroenneGrowing↓ 4.3K/wk★ 847Updated 6 days ago

Runs on your computer

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.

nextcloud-organizer-mcp

Let Claude run your Nextcloud tasks, calendar and notes.

A self-hosted MCP server for CalDAV tasks, events and the Notes app.

Real tool calls against a real Nextcloud · watch as video

Ask in plain language, and your own Nextcloud changes. No copy-paste, no third-party calendar service: the data stays on your server and the tools talk to it over standard CalDAV and the Notes REST API.

Community project, not affiliated with or endorsed by Nextcloud GmbH.

Formerly nextcloud-task-mcp.

What you can say

You say	What happens
"Add a high-priority task: finish the Q4 report by Thursday 5pm, remind me 2 hours before."	`create_task` with due date, priority and a `VALARM` reminder
"Add a weekly team sync, Mondays 10:00."	`create_event` with an `RRULE`
"Block Thursday 9-11 for the report."	`create_event_from_task` — a linked time block, task and event stay connected
"What does my Thursday look like?"	`get_agenda` — events (recurring ones expanded) and due tasks in one answer
"Start a note for the Q4 report, then update just the status section."	`create_note`, `update_note_section`

What Claude wrote shows up in the normal Nextcloud apps, immediately:

Features

Tasks (VTODO): priorities, tags, reminders, subtasks, recurrence with exception dates, four-state status, batch update/delete/move.
Calendars and events (VEVENT): recurring events, attendees and RSVP, free/busy, sharing, ICS import/export, birthdays, batch operations, trash bin.
Timeboxing: turn a task into a calendar block and keep both linked.
Notes: create, search, append, replace a passage or a single Markdown section.
Combined day agenda: events and due tasks together.
Safe by default: OAuth 2.1 with a password consent page, https:// enforced for Nextcloud, clean error messages instead of stack traces.
51 tools in total, documented in the tool reference.

Compatibility

Client	Status
Claude (claude.ai web) as a custom connector	Supported, connector and consent flow tested against claude.ai
Claude mobile and Cowork	Use the same connector as web; not tested separately
Claude Desktop via `mcp-remote`	Documented in the deployment guide
Other MCP clients and model providers	Not tested yet, planned

The server speaks standard Streamable HTTP MCP with OAuth 2.1 (Dynamic Client Registration + PKCE), so other clients may work. The OAuth redirect allow-list defaults to claude.ai and claude.com; other clients need MCP_OAUTH_ALLOWED_REDIRECT_DOMAINS set. Reports from other clients are welcome.

Quick start

Requires Python 3.10+ and a Nextcloud with the Calendar/Tasks and Notes apps.

uv tool install nextcloud-organizer-mcp   # or: pipx install nextcloud-organizer-mcp

Create an app password under Settings → Security → Devices & sessions (never your account password), then set:

export NEXTCLOUD_BASE_URL=https://cloud.example.com

export NEXTCLOUD_USERNAME=your-username export NEXTCLOUD_APP_PASSWORD=your-app-password export PUBLIC_BASE_URL=https://your-host.ts.net # the URL clients use export MCP_OAUTH_PASSWORD=a-long-random-password # required unless local

nextcloud-organizer-mcp     # listens on 127.0.0.1:8000, path /mcp

From a checkout instead: uv sync && cp .env.example .env, edit .env, then uv run nextcloud-organizer-mcp. Every setting is documented in .env.example. NEXTCLOUD_BASE_URL must be https:// unless it points at a local address.

Then expose the server (the deployment guide uses Tailscale Funnel for TLS) and add it in Claude under Settings → Connectors → Add custom connector with the URL /mcp. Leave Client ID and Secret blank and enter your MCP_OAUTH_PASSWORD on the consent page that opens. Details: Authentication.

How it works

Claude ── HTTPS + OAuth 2.1 ──► your server (this project) ── CalDAV / Notes API ──► Nextcloud

One CalDAV connection is opened at startup and reused for every request.
No tool or CalDAV logic runs until a request carries a valid access token.
The server binds to a local HTTP port and does not handle TLS itself.
Timestamps use MCP_DEFAULT_TIMEZONE (default Europe/Berlin); naive inputs are interpreted in it.

Documentation

Deployment guide — Ubuntu LXC + Tailscale + systemd + Claude connector setup
Authentication — OAuth model, consent page, local security patches
Tool reference — all tools with parameters, examples and error messages
Architecture — module layout, request flow, design decisions
Contributing — dev setup, checks, branches (main released, dev active)
Changelog · Security policy

License

MIT

Nextcloud Organizer MCP

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

What you can say

Features

Compatibility

Quick start

How it works

Documentation

License