Mmcp.market

Kalender Sync MCP server

by kalender-sync.de·de.kalender-sync/kalender-sync·v1.4.0
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GDPR-compliant calendar access for AI assistants: read, create, edit, RSVP. Google, MS 365, Apple.

B70/100grade B
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Safety scan
B70/100

full report

Adoption
New

Little public usage data yet

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If you have run it, two minutes of your experience saves the next person an afternoon.

Kalender Sync tools

Tool list not cached yet. `describe` through the gateway fetches it live.

Public scan report

scanner v0.1.3 · 2026-09-19 · same rubric, same numbers if you re-run it

1 low
  • –Code scanremote-only server, no package to scann/a
  • Live reliabilityremote reachable in 509ms (auth required)20/20
  • –Tool poisoningtools not inspected (endpoint requires auth); not countedn/a
  • Auth qualityOAuth resource metadata advertised on 40115/15
  • Maintenanceno repository listed3/15
  • Maintainer identityverified namespace with website, no repo4/10

Findings (1)

  • lowNo source repository listedmaint.no-repo
Overall 70/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

Install directly

claude mcp add --transport http kalender-sync https://app.kalender-sync.de/mcp
Add to Cursor

Kalender Sync: common questions

Is Kalender Sync MCP server safe?
Mostly: it is graded B (70/100). Read the Kalender Sync safety report
How do I install Kalender Sync?
It runs remotely at app.kalender-sync.de. Add it to Claude Code, Claude Desktop or Cursor with the snippets above, or call it through the mcp.market gateway without installing anything.
Does Kalender Sync need an API key?
No key to paste: it signs you in with OAuth when your client connects.
Is Kalender Sync maintained?
The latest release is v1.4.0.
Is Kalender Sync up?
100% of our last 1 checks got an answer. We check remote servers about four times a day.
What can I use instead of Kalender Sync?
Servers from other publishers that do the same job: Google Drive MCP server, Apple Calendar MCP server and Google Docs MCP server. Compare all Kalender Sync alternatives.

Alternatives to Kalender Sync

Same job from other publishers: the closest match first, then the best rated.

All Kalender Sync alternatives →
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  • Apple Calendar
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  • Google Docs
    Google Docs as MCP tools: read, edit, suggest and comment on documents.
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  • Homeport
    Apple Calendar, Reminders, Contacts, Notes, Messages and Shortcuts for AI, over Tailscale
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  • Obsidian
    Read, write, search, and surgically edit Obsidian notes, tags, and frontmatter via MCP.
    A
Kalender Sync vs Google Drive MCPKalender Sync vs Apple CalendarKalender Sync vs Google Docs

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