# Calendar MCP server

Agent View of the PolicyLayer registry record for Calendar: identity, probed posture, risk grade, and all 12 tools classified. HTML page: https://policylayer.com/tools/deciduus-calendar-mcp

## Facts

- Server id: `deciduus/calendar-mcp`
- Homepage: https://github.com/deciduus/calendar-mcp
- Registry record: grade D, identity unverified
- Lifecycle: active
- Rate-limited: no
- Tools: 12
- Tool categories present: Destructive, Read, Write
- Tags: deciduus calendar mcp, admin
- Record last modified: 2026-08-01T08:17:50.706Z

## Tools (12)

| Tool | Category | Risk | Record |
| --- | --- | --- | --- |
| `delete_event` | Destructive | Critical | https://policylayer.com/tools/deciduus-calendar-mcp/delete-event.md |
| `analyze_busyness` | Read | Low | https://policylayer.com/tools/deciduus-calendar-mcp/analyze-busyness.md |
| `check_attendee_status` | Read | Low | https://policylayer.com/tools/deciduus-calendar-mcp/check-attendee-status.md |
| `find_events` | Read | Low | https://policylayer.com/tools/deciduus-calendar-mcp/find-events.md |
| `list_calendars` | Read | Low | https://policylayer.com/tools/deciduus-calendar-mcp/list-calendars.md |
| `query_free_busy` | Read | Low | https://policylayer.com/tools/deciduus-calendar-mcp/query-free-busy.md |
| `add_attendee` | Write | Medium | https://policylayer.com/tools/deciduus-calendar-mcp/add-attendee.md |
| `create_calendar` | Write | Medium | https://policylayer.com/tools/deciduus-calendar-mcp/create-calendar.md |
| `create_event` | Write | Medium | https://policylayer.com/tools/deciduus-calendar-mcp/create-event.md |
| `quick_add_event` | Write | Medium | https://policylayer.com/tools/deciduus-calendar-mcp/quick-add-event.md |
| `schedule_mutual` | Write | Medium | https://policylayer.com/tools/deciduus-calendar-mcp/schedule-mutual.md |
| `update_event` | Write | Medium | https://policylayer.com/tools/deciduus-calendar-mcp/update-event.md |

## Tool descriptions

- `delete_event` — Deletes an event.
- `check_attendee_status` — Checks the response status for attendees of a specific event.
- `list_calendars` — Lists the calendars on the user's calendar list.
- `query_free_busy` — Queries the free/busy information for a list of calendars over a time period.
- `add_attendee` — Adds one or more attendees to an existing event.
- `create_calendar` — Creates a new secondary calendar.
- `quick_add_event` — Creates an event based on a simple text string using Google's natural language parser.

## Related servers

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- Delx Protocol — Agent Recovery & Continuity (1076 tools) — https://policylayer.com/tools/io-github-davidmosiah-delx-protocol.md
- Nodebench (824 tools) — https://policylayer.com/tools/io-github-homenshum-nodebench.md
- MCP Framework Personal (790 tools) — https://policylayer.com/tools/inggerman-mcps.md
- Delx MCP Server (740 tools) — https://policylayer.com/tools/io-github-davidmosiah-delx-mcp-server.md
- Binance MCP Server (734 tools) — https://policylayer.com/tools/nirholas-binance-mcp.md
- Eda Agent (726 tools) — https://policylayer.com/tools/eda-agent.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

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Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=deciduus-calendar-mcp · API: https://policylayer.com/registry/api · Recommended policies for every tool: https://policylayer.com/policies/deciduus-calendar-mcp