Kalender Sync MCP server
online · 96% uptimeby kalender-sync.de·
de.kalender-sync/kalender-sync·v1.11.1EU-hosted calendar MCP: Google, Outlook, iCloud, GMX, WEB.DE, CalDAV. Read, book, RSVP, sync.
B77/100grade B
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B77/100
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Kalender Sync tools
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How Kalender Sync compares
Against every graded Email MCP server, from our own scans and uptime checks. Updated after each scan run.
- Safety score
- 77/100
- higher than 50% of 916 Email servers
- Uptime
- 96%
- of our recent checks; the typical remote Email server answers 100%
- Response time
- 667 ms
- faster than 19% of 609 Email servers
Release history: 3 versions in the registry since 2026-09-12, latest 2026-10-28, typically one every 37 days.
Install Kalender Sync in Claude Code, Cursor or VS Code
claude mcp add --transport http kalender-sync https://app.kalender-sync.de/mcp
Kalender Sync: common questions
- Is Kalender Sync MCP server safe?
- Mostly: it is graded B (77/100). 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, Cursor, VS Code or Claude Desktop with the snippets above, or call it through the mcp.market gateway without installing anything.
- Does Kalender Sync need an API key?
- Yes. The registry entry asks for
Authorization. - Is Kalender Sync maintained?
- The latest release is v1.11.1.
- Is Kalender Sync up?
- 96% of our last 28 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: Mailoo - Email MCP Server, Workspace MCP server and Google Workspace MCP server.
- How does Kalender Sync compare with other Email MCP servers?
- safety score 77/100 (higher than 50% of 916 Email servers); uptime 96% (of our recent checks; the typical remote Email server answers 100%); response time 667 ms (faster than 19% of 609 Email servers). Full comparison.
Alternatives to Kalender Sync
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