Use Case
Fastmail is a powerful AI agent skill that extends your assistant with new capabilities. Manages Fastmail email and calendar via JMAP and CalDAV APIs. Use for emails (read, send, reply, search, organize, bulk operations, threads) or calendar (events, reminders, RSVP invitations). Timezone auto-detected from system. This guide walks you through installing Fastmail, configuring it for your setup, and running your first commands β so you can start getting value in minutes.
Install Fastmail: npx clawhub@latest --dir ~/.claude/skills install fastmail
Restart your AI client (Claude Code, Cursor, Gemini CLI, or OpenClaw)
Type a natural language request related to communication to trigger Fastmail
Review the output and refine your prompt for better results
Combine Fastmail with other skills to build multi-step workflows
Copy these prompts and use them with your AI agent after installing Fastmail
Help me get started with Fastmail
What can Fastmail do for my communication workflow?
Show me an example of using Fastmail
Select your agent
Option 1: Install via CLI (recommended)
Recommended (no pre-install needed)
npx clawhub@latest --dir ~/.claude/skills install fastmailOr via clawhub CLI (if already installed)
clawhub --dir ~/.claude/skills install fastmailβ οΈ Requires Node.js 18+. No Node? Use Option 2 below to download the ZIP instead. Install Node.js β
Option 2: Manual install (no Node required)
Download the ZIP, extract it, and place the folder at the path below. Restart your agent to activate.
Install path
~/.claude/skills/fastmail/π‘Extract and place the folder at the path above, then restart your agent.