Calensync MCP server
Manage Google, Outlook & Apple calendars and create private sync rules from chat.
B70/100grade B
Adoption
New
Little public usage data yet
Reviews
Write oneNobody has reviewed Calensync yet.
If you have run it, two minutes of your experience saves the next person an afternoon.
Calensync tools
Tool list not cached yet. `describe` through the gateway fetches it live.
Public scan report
scanner v0.1.7 · 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 1260ms (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 listed
maint.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 calensync https://api.calensync.live/mcp
Calensync: common questions
- Is Calensync MCP server safe?
- Mostly: it is graded B (70/100). Read the Calensync safety report
- How do I install Calensync?
- It runs remotely at api.calensync.live. 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 Calensync need an API key?
- No key to paste: it signs you in with OAuth when your client connects.
- Is Calensync maintained?
- The latest release is v1.0.0.
- Is Calensync 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 Calensync?
- Servers from other publishers that do the same job: Workspace MCP server, Better Workspace MCP server and Outlook Assistant MCP server. Compare all Calensync alternatives.
Alternatives to Calensync
Same job from other publishers: the closest match first, then the best rated.
- WorkspaceGoogle Workspace MCP server for Gmail, Drive, Calendar, Docs, Sheets, Slides, Forms, Tasks, Chat.not reviewedWidely usedA
- Better WorkspaceGoogle Workspace MCP — Docs, Drive, Calendar, Gmail, Sheets, Slides, Tasks, Chat, People, Formsnot reviewedGrowingC
- Outlook AssistantMicrosoft Outlook MCP server — 22 tools for email, calendar, contacts, and mailbox management.not reviewedGrowingA
- OutlookOutlook & OneDrive MCP: personal & enterprise tools for mail, calendar, contacts, tasks, filesnot reviewedGrowingA
- OutlookOutlook integration with OAuth, message search, batch operations, and calendar managementnot reviewedGrowingC
