Skip to content
FrankKi logo

FrankKi

Prints, envelopes and mails real paper letters, either from a web app, a template or an AI agent over MCP.

At a glanceswept 2026-10-12

≈ 1visits/mo

Little sign of use · estimate, read 2026-10-12

  • FrankKi1
  • #1 Microsoft135M
  • Developer tools median25
For
people and AI-agent users who need to send a physical letter, such as cancellations or reminders
Activity
Actively maintainedsite updated 5 days ago
Company
Domain since 2026domain registered
Runs as
API
What people do with itread off frankki.app on 2026-10-14
  • send a cancellation or objection letter by post
  • have an AI agent draft and mail a letter
  • track delivery status of a posted letter
The companyeach fact with its source · read 2026-10-14
  • Domain since2026domain registered
How a program reaches itfound, not claimed · read 2026-10-14
  • MCP serverapp.frankki/lettersverified in the MCP registry
  • Stateanswers, 4 toolschecked 2026-10-14
  • Address to connectmcp.frankki.app
  • MCP docsfrankki.app/mcpthe vendor's page ↗

MCP server details →

Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.

Alternatives in Developer toolsby use, among tools still maintained

Figure and bar: visits/mo, estimate · year: online since

All Developer tools tools →

Questions this page answers
  • What is FrankKi?

    Prints, envelopes and mails real paper letters, either from a web app, a template or an AI agent over MCP. It is listed in the Atlas under Developer tools.

  • Who is FrankKi for?

    people and AI-agent users who need to send a physical letter, such as cancellations or reminders

  • How much does FrankKi cost?

    Paid plans start at ≈ $1.67 per use (€1.49 per use), per FrankKi's pricing page on 2026-10-14.

  • Is FrankKi free?

    No. Its pricing page showed no free plan on 2026-10-14.

  • Do people use FrankKi?

    Little sign of use: ≈ 1 visits/mo · estimate, 2026-10.

  • Is FrankKi still maintained?

    Actively maintained: site updated 5 days ago.

  • What are alternatives to FrankKi?

    In Developer tools, by use: Appwrite, Litmus, Merlean, Huint, Cloudflare, TestMu AI (Formerly LambdaTest).

Not quite it? Describe the job

beta

Five tools from the Atlas that fit it, each judged against what you wrote.

How we read a tool

No votes, no reviews, no vendor claims. Every week a crawler reads each tool's own site and a few public registries, and the words on the card are bands over what it read.

  • Use: visits to the site (estimated), installs from npm and PyPI, presence in Chrome's usage report.
  • Activity: the newest release on GitHub, npm or PyPI; the newest dated page on the site; open roles on a public jobs board.
  • Price: the vendor's own pricing page, read with the date. A figure is printed only when it is on that page.
  • The line and the use cases are written by us from the homepage, one tool at a time, and refused when they repeat the vendor's marketing.

How AI assistants read each site — the reading vendors ask us about — is on each tool's own visibility page.