Observed arrival · 2026-10-05
Zetteldesk: AI agents that send real letters
A service for compatible AI assistants to check letter PDFs, quote postage, and arrange printing and mailing in Germany—including registered post.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- People automating physical mail from AI assistants
- Worth noticing
- The nine-tool interface separates read-only checks from sends marked destructive and requiring confirmation.
Field notes
The connection flow uses a remote MCP server with OAuth, and the page says this avoids putting API keys in chat history. Agents can also compose a letter from plain text using sender, recipient, subject, and body fields; PDF validation and quoting are described as free. The send action reserves funds only after confirmation, while the page says cancellation remains possible before printing.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
⊠LoginAccess appeared gated
$PaidCommerce or pricing visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
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