# Fastmail Calendar MCP Server

> Use this tool when you need to integrate AI assistants with Fastmail calendars to manage events. It solves problems of calendar event management, allowing AI assistants to interact with calendars using natural language to view, create, update, and delete events. The tool takes natural language inputs and outputs calendar event updates via CalDAV.

Canonical page: https://skillsregistry.net/skills/nova-3951-fastmail-calendar-mcp  
JSON: https://api.skillsregistry.net/v1/skills/nova-3951-fastmail-calendar-mcp

## Description

Enables AI assistants to interact with Fastmail calendars via CalDAV, allowing them to view, create, update, and delete calendar events using natural language.

## Trust

- **Trust score (0–1):** 0.70
- **Verification tier:** verified
- **Last scanned:** 2026-09-02

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** productivity
- **Updated:** 2026-09-02

## Source

- **Source listing:** [Glama](https://glama.ai/mcp/servers/adgoo2wfeh)
- **Repository:** <https://github.com/NOVA-3951/Fastmail-Calendar-MCP>

## Use it

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "nova-3951-fastmail-calendar-mcp"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/nova-3951-fastmail-calendar-mcp` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/nova-3951-fastmail-calendar-mcp/pull`

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SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt