Add Email Newsletter to FreshRSS

Subscribe to an email newsletter by creating a Kill the Newsletter inbox, then adding the resulting Atom feed to FreshRSS with an appropriate category.

Procedure

1. Understand the newsletter

The user provides a newsletter name, signup page, or website. Use WebFetch on the provided URL to understand what the newsletter covers (topic, audience, content type). This informs the feed title.

2. Create a Kill the Newsletter inbox

FEED_SLUG=$(curl -s -X POST https://kill-the-newsletter.com/feeds \
  -H "CSRF-Protection: true" \
  -d "title=NEWSLETTER_TITLE" \
  -D - -o /dev/null | grep -oP 'location:.*feeds/\K[^\s]+')

This gives you:

• Email: ${FEED_SLUG}@kill-the-newsletter.com
• Atom feed: https://kill-the-newsletter.com/feeds/${FEED_SLUG}.xml

3. Add to FreshRSS

Invoke add-feed with the atom feed URL (https://kill-the-newsletter.com/feeds/${FEED_SLUG}.xml) to authenticate with FreshRSS, infer the best category, and add the feed.

4. Output results

Print clearly:

• Email address: ${FEED_SLUG}@kill-the-newsletter.com
• Atom feed URL: https://kill-the-newsletter.com/feeds/${FEED_SLUG}.xml
• FreshRSS category: the assigned category
• What to do next: Go to the newsletter's signup page, paste the email address above into the subscribe form, and submit. Once the newsletter sends its first email, it will appear as an entry in FreshRSS.
• If a confirmation email is required, it will also show up in FreshRSS as a feed entry. Follow the confirmation link from there.

Notes

• The Kill the Newsletter inbox must be created before subscribing. The email address is what the user gives to the newsletter signup form.
• Do not share the KTN feed URL publicly (anyone with it can send spam to it).