MastheadKynth OS

Your customer newsletter, written from what your business actually did this week.

Masthead mines your team's tools for the launches, fixes, and wins worth telling customers about, drafts the issue in your voice — subject lines included — and sends it on your schedule.

Free to start — no credit card.

masthead · drafted in your voice
SubjectSave your grind, faster checkout, and 10k bags 🎉
Drafted by Claude

This month at Aurora Coffee

This is the real draft surface — Masthead writes the newsletter from your week's activity, and it's yours to edit, approve, and send.

It mines the material you'd otherwise forget

Slack shout-outs, shipped Linear issues, quiet wins — Masthead surfaces what's newsletter-worthy and rewrites each item into customer-facing copy, so you're never staring at a blank page.

Newsletter-worthy materialmined this week
Saved grind settings per beanLaunch

You can now save a grind setting per bean, so your pour-over dials itself in.

via Linear · rewritten for customers
10,000 bags shipped this quarter 🎉Win

We crossed 10,000 bags shipped this quarter — thank you, genuinely.

via Slack · rewritten for customers

Approve once — it sends on your schedule

Pick your cadence and segments, and Masthead delivers the approved issue through Resend. No export, no copy-paste into another tool.

Scheduled to sendvia Resend
Recipients
1,240
Sends
Thu · 9:00am

Approve once and Masthead delivers the issue to your audience on your schedule — no export, no copy-paste.

You should email your customers. Now you actually will.

The demo is live — free, no card. Watch a week of real activity become a finished newsletter in under a minute.

The Kynth OS suite

AI agents that act on your behalf. One studio, 70+ focused AI agents — each living in the tools a business already runs on. Explore all of Kynth OS →