MCP Observatory
3m ago Tracked 21,441 Last 3m ago 24h 1,326
github analyzed fe76057

MarimerLLC/calendar-mcp

github

A unified Model Context Protocol (MCP) server that enables AI assistants to access multiple email and calendar accounts simultaneously across Microsoft 365 (multiple tenants), Outlook.com, and Google Workspace.

maintainer
MarimerLLC
license
MIT
first seen
2026-06-09
last seen
2026-06-09
releases · 30d
0
short id
risk 17/100 · heuristic grade
B low
  • tool safetyinferred+17

inferred

The A–E grade is our heuristic synthesis — a "review this" prompt, not a verdict. Each factor is tagged by what backs it: attested (a verifiable record), reported (a third party's claim), or inferred (our own heuristic, e.g. permissions). See methodology.

graded 7m ago · see ecosystem CVEs →

risk trajectory 1 movements
  • B · 25 → B · 17
vulnerabilities 0 CVEs

No known CVEs for this server.

tool safety 2 findings · grade factor +17
  1. highexfiltration combosend_email

    single tool reads + sends: fs, net

  2. mediumtool shadowingsend_email

    tool "send_email" shadows a verified server's tool

    shadows K-Cupples/mockmcp

skills & danger signals github-tarball
prompt-surface shipped agent-instruction files + hidden-content / dangerous-code findings — quoted from the analyzed source

analyzed commit fe76057 · analyzer v20 · 9h ago

skills & prompt files 2

embed badge readme-ready
live risk-grade badge preview [![MCP Observatory risk grade](https://mcpobservatory.com/servers/github:MarimerLLC/calendar-mcp/badge.svg)](https://mcpobservatory.com/servers/github:MarimerLLC/calendar-mcp/security)

Heuristic, inferred signals — false positives (legitimately powerful tools, forks, language ports) are expected. Treat each as "review this", not a verdict. See the ecosystem-wide picture on the security hub, or the fleet security of MarimerLLC.