Use Case
Index Cards is a powerful AI agent skill that extends your assistant with new capabilities. Send real, physical greeting cards through the mail. Design custom cards with the user, print on premium cardstock, and mail with a first-class stamp. Use when the user wants to send a card, mentions a birthday or occasion, or asks about greeting cards. Requires a free API registration (POST /v1/auth/register returns a Bearer token). Works via API β no browser needed. Homepage https://indexcards.com β privacy policy at https://indexcards.com/privacy. This guide walks you through installing Index Cards, configuring it for your setup, and running your first commands β so you can start getting value in minutes.
Install Index Cards: npx clawhub@latest --dir ~/.claude/skills install index-cards
Restart your AI client (Claude Code, Cursor, Gemini CLI, or OpenClaw)
Type a natural language request related to communication to trigger Index Cards
Review the output and refine your prompt for better results
Combine Index Cards with other skills to build multi-step workflows
Copy these prompts and use them with your AI agent after installing Index Cards
Help me get started with Index Cards
What can Index Cards do for my communication workflow?
Show me an example of using Index Cards
Select your agent
Option 1: Install via CLI (recommended)
Recommended (no pre-install needed)
npx clawhub@latest --dir ~/.claude/skills install index-cardsOr via clawhub CLI (if already installed)
clawhub --dir ~/.claude/skills install index-cardsβ 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/index-cards/π‘Extract and place the folder at the path above, then restart your agent.