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Field notes

25 August 20263 min readBy Team Klaudius

Klaudius can now put real letters in the post — autonomously

Most people have no idea this is possible: Klaudius can now pitch businesses with physical mail, end to end, without you touching a printer or a stamp. It writes a one-page letter around a screenshot of the website it already built, has it printed and posted for about $1, and routes the reply back to you digitally through a claim page on the business's new site.

Here's something most people don't realise is possible: an AI agent can now send physical mail. Not a mail-merge PDF for you to print — the whole thing, autonomously. Klaudius finds a business without a website, builds it one, writes a one-page letter around a screenshot of that site, and a print facility in the recipient's own country prints it, envelopes it and hands it to the postal carrier. You never touch paper. The first you hear of it is when the business owner scans the QR code on their letter and lands on the website that was built for them.

Here's what that looks like in practice.

New here? The short version: Klaudius is an AI pipeline you own that finds local businesses that need a website, builds each one a bespoke site, and pitches it to them — you charge the businesses. You don't need to code. One licence, $399 one-time, 7-day money-back guarantee, and every new capability (like this one) is a free update. See how it works →

What Klaudius does with that

The pipeline already builds each business a bespoke website before any contact is made. The letter channel turns that into physical mail:

  1. It writes a one-page letter around a colour screenshot of the site it built for that specific business — their name, their trade, their new website on paper in their hands.
  2. A print-and-post provider prints and mails itPingen prints locally across Europe, PostGrid in the US, Canada, UK and Australia. No printer, no stamps, no trips to the post office; a letter costs roughly $1 all-in.
  3. The letter carries a QR code and a short typed link to a claim page on the business's new site. The owner scans it, sees their site, and leaves their name and email or phone.
  4. The reply comes back to you digitally — with consent. The moment they submit the claim page, that lead flips to responded in your pipeline, you get a notification, and the conversation continues on the channel they gave you. Cold paper in, consented email out.

One letter per business, ever. There's no letter cadence, no "did my letter arrive?" nudges — anything unclaimed lapses automatically after 28 days and the pipeline moves on.

Compliance is printed on the page

Writing to an address you found in a public directory comes with information duties in the EU, so the letter template carries them by default: a short data-protection notice saying where the address came from and why you're writing, a clearly set-off line explaining how to object to further advertising, and a plain statement that this is a free preview — not an invoice, nothing to pay. Anyone who objects is marked do-not-contact and never approached again on any channel. None of that is left for you to remember; it's in the template.

Switching it on

The letter channel is a free update to every licence. New installs can opt in during the wizard; existing installs tell their agent to update Klaudius and enable the letter channel — it walks you through creating the provider account and does a test run against the provider's sandbox, where nothing is printed and nothing is charged. Both providers have genuinely free test environments, so you can rehearse the whole flow — letter, QR, claim page, reply — before a single real stamp.