Kalender Sync
connectsapp.kalender-sync.de
GDPR-compliant calendar access for AI assistants. Google, Microsoft 365, Apple & more. EU-hosted.
https://app.kalender-sync.de/mcpWebsiteOAuthlast checked 24 Aug 2026spoke MCP on 3 of 3 checks (30 days)initialize in 156 msHow to authenticate
Checked against the endpoint by our probe on 24 Aug 2026. These are the capabilities the server advertises, not a prediction about any particular client.
| Scheme | OAuth |
|---|---|
| Issuer | https://app.kalender-sync.de |
| Dynamic client registration | ✕Not advertised |
| Client ID Metadata Document | ✓Supported A client identifies itself by a URL to its own metadata, so no registration step is required. |
| PKCE | ✓S256 |
| Grant types | authorization_code, refresh_token |
| Scopes | calendar.read, calendar.write, offline_access |
| Protected-resource metadata | ✓Published (RFC 9728) |
| Anonymous access | Refused — credentials required |
What the probe found
A cross-origin preflight came back without Access-Control-Allow-Origin, so the endpoint is reachable from native clients only — code running in a web page is stopped by the browser before a request is ever sent.
Contract history
No contract recorded yet — the server has not answered an anonymous connection.
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Status badge
Status for a README, from the last probe — cached an hour, so up to seven hours behind the endpoint. Links back to this page.
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