Nextcloud MCP Server

The Nextcloud MCP (Model Context Protocol) server allows Large Language Models (LLMs) like OpenAI's GPT, Google's Gemini, or Anthropic's Claude to interact with your Nextcloud instance. This enables automation of various Nextcloud actions, starting with the Notes API.

Features

The server provides integration with multiple Nextcloud apps, enabling LLMs to interact with your Nextcloud data through a rich set of tools and resources.

Supported Nextcloud Apps

App	Support Status	Description
Notes	✅ Full Support	Create, read, update, delete, and search notes. Handle attachments via WebDAV.
Tables	⚠️ Row Operations	Read table schemas and perform CRUD operations on table rows. Table management not yet supported.

Available Tools

Notes Tools

Tool	Description
nc_get_note	Get a specific note by ID
nc_notes_create_note	Create a new note with title, content, and category
nc_notes_update_note	Update an existing note by ID
nc_notes_append_content	Append content to an existing note with a clear separator
nc_notes_delete_note	Delete a note by ID
nc_notes_search_notes	Search notes by title or content

Tables Tools

Tool	Description
nc_tables_list_tables	List all tables available to the user
nc_tables_get_schema	Get the schema/structure of a specific table including columns and views
nc_tables_read_table	Read rows from a table with optional pagination
nc_tables_insert_row	Insert a new row into a table
nc_tables_update_row	Update an existing row in a table
nc_tables_delete_row	Delete a row from a table

Available Resources

Resource	Description
nc://capabilities	Access Nextcloud server capabilities
notes://settings	Access Notes app settings
nc://Notes/{note_id}/attachments/{attachment_filename}	Access attachments for notes

Note Attachments

This server supports adding and retrieving note attachments via WebDAV. Please note the following behavior regarding attachments:

• When a note is deleted, its attachments remain in the system. This matches the behavior of the official Nextcloud Notes app.
• Orphaned attachments (attachments whose parent notes have been deleted) may accumulate over time.
• WebDAV permissions must be properly configured for attachment operations to work correctly.

Installation

Prerequisites

• Python 3.8+
• Access to a Nextcloud instance

Local Installation

1. Clone the repository (if running from source):

   git clone https://github.com/cbcoutinho/nextcloud-mcp-server.git
   cd nextcloud-mcp-server

2. Install the package (if running as a library):

   poetry install

Docker

A pre-built Docker image is available: ghcr.io/cbcoutinho/nextcloud-mcp-server

Configuration

The server requires credentials to connect to your Nextcloud instance. Create a file named .env (or any name you prefer) in the directory where you'll run the server, based on the env.sample file:

# .env
NEXTCLOUD_HOST=https://your.nextcloud.instance.com
NEXTCLOUD_USERNAME=your_nextcloud_username
NEXTCLOUD_PASSWORD=your_nextcloud_app_password_or_login_password

• NEXTCLOUD_HOST: The full URL of your Nextcloud instance.
• NEXTCLOUD_USERNAME: Your Nextcloud username.
• NEXTCLOUD_PASSWORD: Important: It is highly recommended to use a dedicated Nextcloud App Password for security. You can generate one in your Nextcloud Security settings. Alternatively, you can use your regular login password, but this is less secure.

Running the Server

Locally

Ensure your environment variables are loaded, then run the server using mcp run:

# Load environment variables from your .env file
export $(grep -v '^#' .env | xargs)

# Run the server
mcp run --transport sse nextcloud_mcp_server.server:mcp

The server will start, typically listening on http://0.0.0.0:8000.

Using Docker

Mount your environment file when running the container:

docker run -p 127.0.0.1:8000:8000 --env-file .env --rm ghcr.io/cbcoutinho/nextcloud-mcp-server:latest

This will start the server and expose it on port 8000 of your local machine.

Usage

Once the server is running, you can connect to it using an MCP client like uvx. Add the server to your uvx configuration:

uvx mcp add nextcloud-mcp http://localhost:8000 --default-transport sse

You can then interact with the server's tools and resources through your LLM interface connected to uvx.

References:

• https://github.com/modelcontextprotocol/python-sdk

Contributing

Contributions are welcome! Please feel free to submit issues or pull requests on the GitHub repository.

License

This project is licensed under the AGPL-3.0 License. See the LICENSE file for details.