Dav MCP

Name: Dav MCP
Author: PhilflowIO

by PhilflowIOversion 5.0.0i★ –iRuns on your computer

Registry nameio.github.PhilflowIO/dav-mcp

Install

Overview

Description from the maker (original English)

AI-orchestrated calendars, contacts & tasks across any DAV platform. 27 tools, field-agnostic.

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: Other
You need to fill in: CALDAV_SERVER_URL, CALDAV_USERNAME, CALDAV_PASSWORD, GOOGLE_CLIENT_SECRET, GOOGLE_REFRESH_TOKEN

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: CALDAV_SERVER_URL, CALDAV_USERNAME, CALDAV_PASSWORD, AUTH_METHOD, GOOGLE_SERVER_URL, GOOGLE_USER, GOOGLE_CLIENT_ID, GOOGLE_CLIENT_SECRET, GOOGLE_REFRESH_TOKEN, GOOGLE_TOKEN_URL

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

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": {
    "dav": {
      "command": "npx",
      "args": [
        "-y",
        "dav-mcp"
      ],
      "env": {
        "CALDAV_SERVER_URL": "your-value",
        "CALDAV_USERNAME": "your-value",
        "CALDAV_PASSWORD": "your-value",
        "AUTH_METHOD": "your-value",
        "GOOGLE_SERVER_URL": "your-value",
        "GOOGLE_USER": "your-value",
        "GOOGLE_CLIENT_ID": "your-value",
        "GOOGLE_CLIENT_SECRET": "your-value",
        "GOOGLE_REFRESH_TOKEN": "your-value",
        "GOOGLE_TOKEN_URL": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add dav --env CALDAV_SERVER_URL=your-value --env CALDAV_USERNAME=your-value --env CALDAV_PASSWORD=your-value --env AUTH_METHOD=your-value --env GOOGLE_SERVER_URL=your-value --env GOOGLE_USER=your-value --env GOOGLE_CLIENT_ID=your-value --env GOOGLE_CLIENT_SECRET=your-value --env GOOGLE_REFRESH_TOKEN=your-value --env GOOGLE_TOKEN_URL=your-value -- npx -y dav-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": {
    "dav": {
      "command": "npx",
      "args": [
        "-y",
        "dav-mcp"
      ],
      "env": {
        "CALDAV_SERVER_URL": "your-value",
        "CALDAV_USERNAME": "your-value",
        "CALDAV_PASSWORD": "your-value",
        "AUTH_METHOD": "your-value",
        "GOOGLE_SERVER_URL": "your-value",
        "GOOGLE_USER": "your-value",
        "GOOGLE_CLIENT_ID": "your-value",
        "GOOGLE_CLIENT_SECRET": "your-value",
        "GOOGLE_REFRESH_TOKEN": "your-value",
        "GOOGLE_TOKEN_URL": "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": {
    "dav": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "dav-mcp"
      ],
      "env": {
        "CALDAV_SERVER_URL": "your-value",
        "CALDAV_USERNAME": "your-value",
        "CALDAV_PASSWORD": "your-value",
        "AUTH_METHOD": "your-value",
        "GOOGLE_SERVER_URL": "your-value",
        "GOOGLE_USER": "your-value",
        "GOOGLE_CLIENT_ID": "your-value",
        "GOOGLE_CLIENT_SECRET": "your-value",
        "GOOGLE_REFRESH_TOKEN": "your-value",
        "GOOGLE_TOKEN_URL": "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

CALDAV_SERVER_URL required env
Base URL of your CalDAV/CardDAV server (e.g. https://example.com/dav.php/)
CALDAV_USERNAME required env
Username for DAV server authentication
CALDAV_PASSWORD secret required env
Password or app-specific password for DAV server authentication
AUTH_METHOD env
Authentication method, case-insensitive: 'Basic' (default; switches to Digest by itself when the server only offers Digest), 'Digest' (Digest-only servers without ever sending the password) or 'OAuth…
GOOGLE_SERVER_URL env
Google CalDAV endpoint; required when AUTH_METHOD=oauth2
GOOGLE_USER env
Google account email; required when AUTH_METHOD=oauth2
GOOGLE_CLIENT_ID env
OAuth2 client ID; required when AUTH_METHOD=oauth2
GOOGLE_CLIENT_SECRET secret env
OAuth2 client secret; required when AUTH_METHOD=oauth2
GOOGLE_REFRESH_TOKEN secret env
OAuth2 refresh token; required when AUTH_METHOD=oauth2
GOOGLE_TOKEN_URL env
OAuth2 token endpoint for AUTH_METHOD=oauth2 (default: https://oauth2.googleapis.com/token)

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 PhilflowIO, 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 Otheri

More stars than 0% of the other 32680 servers in this category
Published to the registry more recently than 58% of the other 32680 servers in this category
Basic checks equal to or better than 100% of the other 32680 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 Dav 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: CALDAV_SERVER_URL, CALDAV_USERNAME, CALDAV_PASSWORD, GOOGLE_CLIENT_SECRET, GOOGLE_REFRESH_TOKEN

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 (5.0.0) reached the registry 28 days 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: Spec Driven Development, Remote Desktop Commander, EmbeddedCI BenchPod

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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.

dav-mcp

Give your AI agents the power of organization — Transform them into orchestrating assistants managing calendars, contacts, and tasks.

Built on 27 production-ready tools spanning CalDAV, CardDAV, and VTODO protocols.

Quick Start

One-click install (Claude Desktop)

Download dav-mcp- .mcpb from the latest release. Releases from 4.1.2 on carry this file.
Open it with Claude Desktop (macOS or Windows). Claude shows an install dialog.
Enter your server URL, username and password. The password is stored as a secret. Leave the authentication method at Basic unless your server needs Digest.

The .mcpb file is an MCP Bundle: the server with its dependencies, so neither Node.js nor npx needs to be installed.

Claude Desktop / Cursor (Local)

Add to your MCP config file:

"mcpServers": { "dav-mcp": { "command": "npx", "args": ["-y", "dav-mcp"], "env": { "CALDAV_SERVER_URL": "https://dav.example.com", "CALDAV_USERNAME": "your_username", "CALDAV_PASSWORD": "your_password" } } } }

Config file locations:

macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
Windows: %APPDATA%\Claude\claude_desktop_config.json
Linux: ~/.config/Claude/claude_desktop_config.json

Restart Claude Desktop after adding the configuration.

n8n (Remote HTTP)

Start the HTTP server:

CALDAV_SERVER_URL=https://dav.example.com \

CALDAV_USERNAME=your_username \ CALDAV_PASSWORD=your_password \ BEARER_TOKEN=your-secret-token \ npx dav-mcp --http

Then in n8n:

Add AI Agent node
Add MCP Client Tool node and connect to AI Agent
Configure:

MCP Endpoint: http://localhost:3000/mcp
Authentication: Bearer
Token: your-secret-token

Custom port:

npx dav-mcp --http --port=8080

Docker

Pull the published image (distroless, runs as non-root, no shell):

docker run -d --name dav-mcp -p 3000:3000 --env-file .env \

ghcr.io/philflowio/dav-mcp:latest

Tags: latest, the exact release (5.0.0) and the minor line (5.0). Set PORT to serve on a different port; the healthcheck follows it.

Or build from source:

git clone https://github.com/PhilflowIO/dav-mcp.git

cd dav-mcp cp .env.example .env

Edit .env with your credentials

docker-compose up

The Orchestration

When partial tools force your AI to improvise, complete tools let it execute precise operations across all components.

Capability	dav-mcp	Most MCPs
Calendar Management	Full CRUD (12 tools)	Create + list only (2-3 tools)
Contact Management	Complete CardDAV (8 tools)	Often missing entirely
Task Management	Full VTODO support (7 tools)	Rarely included
Field-Based Updates	All RFC properties + custom fields	Rarely available
Free/Busy	Works on every server (client-side)	Native REPORT, unsupported by most
Server-Side Filtering	Efficient queries	Dumps all data
Multi-Provider	Any CalDAV/CardDAV server	Limited provider support
Total Tools	27 tools	2-6 tools

Available Tools (27 Total)

CalDAV Tools (12 tools)

list_calendars - List all available calendars
list_events - List ALL events (use calendar_query for filtered searches)
create_event - Create a new calendar event
update_event - PREFERRED: Update any event field (SUMMARY, LOCATION, STATUS, custom X-* properties); move or convert an event with start_date/end_date/all_day
update_event_raw - Update event with raw iCal data (advanced)
delete_event - Delete an event permanently
calendar_query - PREFERRED: Search and filter events efficiently by text, date range, or location
make_calendar - Create a new calendar collection, optionally with a time zone (an IANA name such as Europe/Berlin, sent as a VTIMEZONE)
update_calendar - Update calendar properties (display name, description, color, time zone)
delete_calendar - Delete a calendar and all its events
calendar_multi_get - Batch fetch multiple specific events by URLs
freebusy_query - Find free and busy time in a range ("when am I free?"), calculated client-side

CardDAV Tools (8 tools)

list_addressbooks - List all available address books
list_contacts - List ALL contacts (use addressbook_query for filtered searches)
create_contact - Create a new contact (vCard)
update_contact - PREFERRED: Update any contact field (FN, EMAIL, TEL, ORG, ADR, custom X-* properties)
update_contact_raw - Update contact with raw vCard data (advanced)
delete_contact - Delete a contact permanently
addressbook_query - PREFERRED: Search and filter contacts efficiently by name, email, or organization
addressbook_multi_get - Batch fetch multiple specific contacts by URLs

VTODO Tools (7 tools)

list_todos - List ALL todos/tasks (use todo_query for filtered searches)
create_todo - Create a new todo/task with optional due date, priority, status
update_todo - PREFERRED: Update any todo field (SUMMARY, STATUS, PRIORITY, DUE, PERCENT-COMPLETE, custom X-* properties)
update_todo_raw - Update todo with raw VTODO iCal data (advanced)
delete_todo - Delete a todo/task permanently
todo_query - PREFERRED: Search and filter todos efficiently by status/due date
todo_multi_get - Batch fetch multiple specific todos by URLs

Time zones

An event or todo written without a time zone (a "floating" time such as DTSTART:20261010T090000, or an all-day date) is read in its calendar's time zone, as CalDAV specifies (RFC 4791 §9.9): the zone set with make_calendar / update_calendar, which list_calendars shows. A calendar without one is read in the zone dav-mcp runs in: the TZ environment variable (for example TZ=Europe/Berlin in Docker or an HTTP deployment), else the system's. A time without a zone given to the create and update tools is read the same way, and an event stored without a zone stays without one when it is moved. freebusy_query prints its slots in the calendar's zone and names it.

Real-World Applications

n8n Automation Workflows

Meeting Management: "Show me all Friday meetings" → calendar_query with date filter returns only relevant events
Contact Search: "Find everyone at Google" → addressbook_query with org filter finds matches efficiently
Task Reporting: "Show overdue high-priority tasks" → todo_query with filters returns specific results
Scheduled Cleanup: Daily cron job deletes completed tasks using targeted queries

Claude Desktop Integration

Quick Event Creation: "Create team meeting tomorrow 2 PM" → create_event executes immediately
Contact Lookup: "What's Sarah's email?" → addressbook_query with name filter finds contact
Calendar Overview: "What's on my calendar next week?" → calendar_query with date range shows events
Calendar Management: "Create a new calendar called Project Luna" → make_calendar creates collection

Works Across All Major Providers

Works with any CalDAV/CardDAV server that follows RFC 4791 and RFC 6352:

Nextcloud - Full support
Baikal - Full support
Radicale - Full support
iCloud - Works with app-specific password
Any RFC-compliant server - Standard protocol support

Authentication

AUTH_METHOD selects how dav-mcp logs in (case-insensitive):

`AUTH_METHOD`	Credentials	Use for
`Basic` (default)	`CALDAV_USERNAME`, `CALDAV_PASSWORD`	Almost every server. If the server only offers Digest (for example Baikal set to Digest), dav-mcp switches to Digest by itself — no setting needed.
`Digest`	`CALDAV_USERNAME`, `CALDAV_PASSWORD`	Servers that only accept Digest (RFC 7616). Unlike the automatic switch under `Basic`, which first sends the password once Basic-encoded and is then rejected, `Digest` never sends the password — use it when the connection is not HTTPS.
`OAuth` (or `OAuth2`)	`GOOGLE_*`, see below	Google Calendar

dav-mcp needs Node.js 22 or newer. A wrong configuration — an unknown AUTH_METHOD value, or missing credentials for the chosen method — stops the server at startup instead of falling back to Basic.

Google Calendar (OAuth2)

For Google Calendar, use OAuth2 authentication:

"mcpServers": { "dav-mcp": { "command": "npx", "args": ["-y", "dav-mcp"], "env": { "AUTH_METHOD": "OAuth", "GOOGLE_USER": "your@gmail.com", "GOOGLE_CLIENT_ID": "your-client-id", "GOOGLE_CLIENT_SECRET": "your-client-secret", "GOOGLE_REFRESH_TOKEN": "your-refresh-token" } } } }

Security

Input Validation: All inputs validated with Zod schemas before execution
Rate Limiting (HTTP mode): 100 requests per 15 minutes per client address, counted before the bearer token is checked. Clients on loopback or a private network (10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16) — another container on the same Docker network, for example — get 10,000. Limitation: dav-mcp sees the address of whatever connects to it. Behind a Docker port mapping or a reverse proxy that is the bridge gateway or the proxy, so all outside clients share that one address, its one counter and its raised limit. Rate-limit per client at the proxy if you expose the HTTP transport.
Bearer Auth: Token authentication for HTTP transport
No Credential Storage: Pass-through only, never logged or cached
Structured Logging: Audit trail with request IDs, no PII exposure
Tool-Call Log Off by Default: LOG_TOOL_CALLS=true records every tool call with its arguments, for debugging — to ~/.local/state/dav-mcp/tool-calls.jsonl (or $XDG_STATE_HOME, %LOCALAPPDATA% on Windows, or TOOL_CALL_LOG_FILE), readable by you only. TOOL_CALL_LOG_MODE=console sends it to stderr instead.
CORS Protection: Whitelist origins, block cross-site attacks

Privacy Policy

dav-mcp runs on your machine (or your own server) and talks only to the DAV server you configure. It has no telemetry and shares nothing with its maintainers or third parties. Tool results go to the AI assistant that called the tool. Credentials and calendar data are not stored by dav-mcp; the optional tool-call log is off by default. Full policy: PRIVACY.md. Contact: hello@philflow.io.

Documentation

[MCP Specification](https://modelcontextprotocol.io/specification/2025-03-26) - Model Context Protocol docs
[tsdav Docs](https://tsdav.vercel.app/docs/intro) - CalDAV/CardDAV library reference
[CalDAV RFC 4791](https://datatracker.ietf.org/doc/html/rfc4791) - CalDAV protocol specification
[CardDAV RFC 6352](https://datatracker.ietf.org/doc/html/rfc6352) - CardDAV protocol specification

Contributing

Pull requests are welcome! Please read CONTRIBUTING.md for guidelines.

License

MIT License - see LICENSE for details

Acknowledgments

Built with:

[tsdav](https://github.com/natelindev/tsdav) - Excellent TypeScript CalDAV/CardDAV library
[tsdav-utils](https://github.com/PhilflowIO/tsdav-utils) - Field-agnostic utility layer for RFC-compliant field updates
[MCP SDK](https://modelcontextprotocol.io) - Model Context Protocol by Anthropic
**[ical.js](https://github.com/kewisch/ical.

Only the beginning is shown; read the rest in the repo

Dav 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 Otheri

Common questions

Alternatives

Spec Driven Development

Remote Desktop Commander

EmbeddedCI BenchPod

README from the maker

dav-mcp

Quick Start

One-click install (Claude Desktop)

Claude Desktop / Cursor (Local)

n8n (Remote HTTP)

Docker

Edit .env with your credentials

The Orchestration

Available Tools (27 Total)

CalDAV Tools (12 tools)

CardDAV Tools (8 tools)

VTODO Tools (7 tools)

Time zones

Real-World Applications

n8n Automation Workflows

Claude Desktop Integration

Works Across All Major Providers

Authentication

Google Calendar (OAuth2)

Security

Privacy Policy

Documentation

Contributing

License

Acknowledgments