What is the key difference between Trello Desktop MCP and Kalender Sync?

Trello Desktop MCP belongs to the Workplace & Productivity category with local stdio execution, while Kalender Sync belongs to the Workplace & Productivity category with cloud HTTP/SSE execution.

How do I install Trello Desktop MCP or Kalender Sync in Claude Desktop or Cursor?

Copy the mcpServers JSON configuration snippet provided on this page into your claude_desktop_config.json or ~/.cursor/mcp.json file and restart your AI client.

Are Trello Desktop MCP and Kalender Sync free or paid?

Trello Desktop MCP operates under a Free / Open Source model (API Key required). Kalender Sync operates under a Free / Open Source model (OAuth 2.0).

Which MCP server has more tools and community activity?

Trello Desktop MCP lists 50 tools with 5 views and 3 GitHub stars. Kalender Sync lists 6 tools with 3 views and 0 GitHub stars.

Can I use both Trello Desktop MCP and Kalender Sync together in the same MCP host?

Yes! MCP hosts like Claude Desktop, Cursor, Windsurf, Cline, and VS Code support configuring multiple servers under the mcpServers object simultaneously.

Side-by-Side Model Context Protocol Comparison

Trello Desktop MCP vs Kalender Sync

In-depth architectural comparison of the Trello Desktop MCP and Kalender Sync MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.

At a Glance & Executive Verdict

Trello Desktop MCP

Workplace & Productivity · Local stdio

Quality: 65/100 (Great) | Auth: API Key required

Kalender Sync

Workplace & Productivity · Remote HTTP/SSE

Quality: 39/100 (Fair) | Auth: OAuth 2.0

Verdict Summary: Choose Trello Desktop MCP if you need specialized Workplace & Productivity tools running via a local process. Choose Kalender Sync if your workspace requires Workplace & Productivity integration with remote web transport. Both servers can be configured concurrently in your client's mcpServers manifest.

Which MCP Server Should You Choose?

Choose Trello Desktop MCP when:

You need dedicated capabilities in the Workplace & Productivity domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: API Key required (Free / Open Source).
You have access to required keys: TRELLO_API_KEY, TRELLO_TOKEN, TRELLO_READ_ONLY.
Primary tools included: trello_search, trello_get_user_boards, get_board_details.

Explore Trello Desktop MCP Details

Choose Kalender Sync when:

You need dedicated capabilities in the Workplace & Productivity domain.
You prefer remote streaming HTTP/SSE transport architecture.
Your security boundary fits: OAuth 2.0 (Free / Open Source).
Primary tools included: MCP-based calendar access, Google calendar support, Microsoft 365 calendar support.

Feature & Specification Comparison

Specification	Trello Desktop MCP agrath Workplace & Productivity	K Kalender Sync Workplace & Productivity
Summary	Comprehensive Trello integration: 46 tools covering boards, cards, lists, labels, checklists, attachments, members, custom fields, and search. Read-only mode, image attachment	GDPR-compliant calendar access for AI assistants: Google, Microsoft 365, Apple, CalDAV. EU-hosted.
Category & Scope	Workplace & Productivity

Tools & Capabilities Breakdown

Trello Desktop MCP Tools (50)

trello_search

Universal search across all Trello content (boards, cards, members). Use this to find specific items by keywords or phrases.

trello_get_user_boards

Get all boards accessible to the current user. This is the starting point for exploring your Trello workspace.

get_board_details

Get information about a Trello board. IMPORTANT: Start with includeDetails=false (default) to get board metadata and lists only. Then use get_card or trello_get_list_cards to drill into specific cards. Only set includeDetails=true for small boards when you need a full overview.

get_card

Get detailed information about a specific Trello card, including its content, status, members, and attachments.

trello_get_card_by_number

Find a card on a board by its board-local number, the "#N" Trello shows on the card (its idShort). Use this to resolve a number a person quoted, such as "card #168", into a real card without needing its ID or URL. Card numbers are unique within a board but not across boards, so the board must be given.

Ready-to-Paste Client Configurations

Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).

Trello Desktop MCP Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "agrath-trello-desktop-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "atlassian-trello-mcp"
      ],
      "env": {
        "TRELLO_API_KEY": "YOUR_TRELLO_API_KEY_HERE",
        "TRELLO_TOKEN": "YOUR_TRELLO_TOKEN_HERE",
        "TRELLO_READ_ONLY": "YOUR_TRELLO_READ_ONLY_HERE"
      }
    }
  }
}

Kalender Sync Configuration

mcpServers (Claude Desktop / Cursor)

{
  "mcpServers": {
    "kalender-sync": {
      "url": "https://kalender-sync.de/en/mcp"
    }
  }
}

Frequently Asked Questions

Trello Desktop MCP is categorized under Workplace & Productivity and uses a local stdio subprocess. In contrast, Kalender Sync belongs to Workplace & Productivity using remote streaming HTTP/SSE transport. Select Trello Desktop MCP when you need capabilities focused on workplace & productivity and Kalender Sync when you require tools for workplace & productivity.

More alternatives to Trello Desktop MCP More alternatives to Kalender Sync Workplace & Productivity category hub