ClawHub

X To Kindle

Send X/Twitter posts to Kindle for distraction-free reading. Use when user shares an X/Twitter link and wants to read it on Kindle, or asks to send a tweet/thread to their Kindle device.

Audits

Pass
ClawScanPass

Agentic behavior and permission review.

Static analysisPass

Pattern checks against bundled files.

VirusTotalPass

Multi-engine malware detections and file reputation.

Install

openclaw skills install x-to-kindle

X to Kindle

Convert X/Twitter posts into Kindle-readable documents via email.

Requirements

  • Gmail account with App Password (or other SMTP setup)
  • Kindle email address (found in Amazon account settings)

Workflow

When user shares an X link:

  1. Extract content via fxtwitter API:

    https://api.fxtwitter.com/status/<tweet_id>

    Extract from URL: twitter.com/*/status/<id> or x.com/*/status/<id>

  2. Format as HTML file (save to /tmp):

    <!DOCTYPE html>
<html>
<head><meta charset="UTF-8"><title>{title}</title></head>
<body style="font-family: Georgia, serif; max-width: 600px; margin: 0 auto; padding: 20px; line-height: 1.6;">
  <h1>@{author_handle}</h1>
  <p>{tweet_text}</p>
  <p><em>{timestamp}</em></p>
  <p><a href="{original_url}">View on X</a></p>
</body>
</html>

  3. Send via SMTP with HTML as ATTACHMENT (Kindle requires attachment, not inline HTML):

    from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText
from email.mime.base import MIMEBase
from email import encoders

msg = MIMEMultipart()
msg['Subject'] = "Tweet from @handle"
msg['From'] = from_email
msg['To'] = kindle_email

# Plain text body (not the content)
msg.attach(MIMEText("Article attached.", 'plain'))

# HTML file as attachment - THIS IS REQUIRED
with open("/tmp/article.html", "rb") as f:
    attachment = MIMEBase('text', 'html')
    attachment.set_payload(f.read())
    encoders.encode_base64(attachment)
    attachment.add_header('Content-Disposition', 'attachment', filename='article.html')
    msg.attach(attachment)

Tools

  • send_to_kindle: Send a local file to the configured Kindle email.

Configuration

Set the following environment variables in your Clawdbot configuration (or .env file):

  • SMTP_EMAIL: Your sender email (e.g., gmail)
  • SMTP_PASSWORD: Your app password
  • KINDLE_EMAIL: Your Kindle email address
  • SMTP_SERVER: (Optional) Default: smtp.gmail.com
  • SMTP_PORT: (Optional) Default: 587

Tool Definitions

send_to_kindle

Send a local file (PDF, HTML, TXT) to the Kindle.

  • Run: python3 skills/x-to-kindle/send_to_kindle.py <file_path>

Configuration

Store in TOOLS.md:

## Kindle
- Address: user@kindle.com

## Email (Gmail SMTP)
- From: your@gmail.com
- App Password: xxxx xxxx xxxx xxxx
- Host: smtp.gmail.com
- Port: 587

Example

User sends: https://x.com/elonmusk/status/1234567890

  1. Fetch https://api.fxtwitter.com/status/1234567890
  2. Extract author, text, timestamp
  3. Send HTML email to Kindle address
  4. Confirm: "Sent to Kindle 📚"