AI agents
Send physical letters with Hermes Agent and FrankKi MCP
Connect Hermes Agent to FrankKi MCP. Prepare a physical letter, check the preview and postage quote, and approve the letter before dispatch.
4 min readGuides
German letters, cancellations and official mail
Step by step guides and ready to use sample letters for the letters nobody enjoys writing: cancellations, objections, tenancy matters, letters to German authorities.
Every article explains the rules in plain English, names its sources and ends with wording you can reuse and send by post right away.
Nº 01Latest guide
Nº 02Overview
All articles
Sample letters, deadlines and wording. Newest first.
AI agents
Send physical letters with OpenClaw and FrankKi MCP
Set up FrankKi as an OpenClaw MCP server. Check authentication and tool access, prepare a letter, and review the postage quote before approval.
4 min read
Guides
When to put a complaint or request in writing
A practical way to decide when a dated letter helps, what evidence to keep, and which US or UK template fits the problem.
9 min readAI agents
Send a letter from an AI agent in a minute, with no account
FrankKi runs a public MCP lane with no sign-in: seven tools, three calls, one Stripe link. The full walkthrough with real production output, the prices, and the rules the lane enforces in code.
6 min readVergleich
When not to choose FrankKi (checked 2026-08-13)
An honest routing table: 16 cases where another physical-mail MCP server is the better answer, each named, linked and dated. Then the narrow thing FrankKi is actually built for.
13 min readVergleich
Lob alternative for Europe: when FrankKi fits
A fair migration and fit guide for teams comparing an established US direct-mail API workflow with a DACH-oriented, agent-native physical-mail workflow.
8 min readVergleich
PostalForm alternative for regulated European mail
Compare PostalForm and FrankKi for European correspondence that needs an explicit dispatch decision, client separation, destination-specific postal products, and precise evidence provenance.
10 min readAI agents
How to send registered mail from an AI agent
An evidence-first workflow for selecting registered mail, reviewing the final letter, approving dispatch, and retrieving posting or delivery records without overstating what they prove.
9 min readVergleich
MCP servers for physical mail, compared (checked 2026-08-13)
At least eight MCP servers can now put a real letter in the post from an AI agent. They differ on where the letter can go, whether the workflow survives a compliance review, and how the agent pays. Side by side, with a check date on every row.
14 min read
How to Send a Letter Online (No Printer, No Post Office)
Send a real, physical letter online from your phone, no printer and no post office. What it costs, how long it takes, and how to mail one to any country.
10 min readNº 03Templates
Letter templates
Ready-to-use wording for letters you need to send.
UK broadband complaint letter
A formal UK complaint for a broadband fault, missed engineer appointment, billing problem, or service that has not been put right.
UK subject access request letter template
Ask a UK organisation for your personal information with a clear request, useful search details, and a response format that works for you.
US credit card billing error dispute letter
A letter for a billing error on a US credit card statement. Include the statement date, charge, reason, and the correction you want.
Nº 04How it works
How FrankKi sends your letter
You write the text on your phone or in the browser. We print it, put it in an envelope and hand it over to the postal service. Worldwide delivery runs through Deutsche Post and local partners. No printer, no stamps, no trip to a postbox.
All features of the app
Registered mail, attachments, tracking and international delivery.
What a letter costs
Per letter pricing for Germany and abroad, with registered mail where supported. No subscription.