Use Case
Fastmail API is a powerful AI agent skill that extends your assistant with new capabilities. Manage Fastmail mail, mailbox, identity, contact, and calendar workflows through JMAP API calls with safe batching and token hygiene. This guide walks you through installing Fastmail API, configuring it for your setup, and running your first commands β so you can start getting value in minutes.
Install Fastmail API: npx clawhub@latest --dir ~/.claude/skills install fastmail-api
Restart your AI client (Claude Code, Cursor, Gemini CLI, or OpenClaw)
Type a natural language request related to communication to trigger Fastmail API
Review the output and refine your prompt for better results
Combine Fastmail API with other skills to build multi-step workflows
Copy these prompts and use them with your AI agent after installing Fastmail API
Help me get started with Fastmail API
What can Fastmail API do for my communication workflow?
Show me an example of using Fastmail API
Select your agent
Option 1: Install via CLI (recommended)
Recommended (no pre-install needed)
npx clawhub@latest --dir ~/.claude/skills install fastmail-apiOr via clawhub CLI (if already installed)
clawhub --dir ~/.claude/skills install fastmail-apiβ 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-api/π‘Extract and place the folder at the path above, then restart your agent.