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KeyKeeper

Private email inboxes for people and AI agents, with a mail API and optional OpenPGP body encryption.

From $1/mo

KeyKeeper: data, price, alternatives
At a glancechecked Nov 3, 2026

not read yet

Use

For
people wanting private email, and AI agents or developers needing their own mailbox
Price
From $1/mopricing page, read Nov 3, 2026
How it runs
API
Used for
  • send and receive mail from your own custom domain
  • give an AI agent a mailbox it can read
  • send transactional app notifications through a mail API
read off keykeeper.world on Nov 3, 2026
Worth knowingcomputed from what we read · each with its source
Pricingpricing page, read Nov 3, 2026
How a program reaches itfound, not claimed · read Nov 3, 2026
  • MCP serverworld.keykeeper/emailverified in the MCP registry
  • Stateanswers, 13 toolschecked 2026-11-03
  • Address to connectkeykeeper.world/mcp
  • OpenAPI spec31 pathsthe spec ↗
  • API docskeykeeper.world/developersthe vendor's page ↗

MCP server details →

This card as JSON, for your agent →

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 Productivityby use, among tools still maintained

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

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From people who use itnot part of the reading

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Questions this page answers
  • What is KeyKeeper?

    Private email inboxes for people and AI agents, with a mail API and optional OpenPGP body encryption. It is listed in the Atlas under Productivity.

  • Who is KeyKeeper for?

    people wanting private email, and AI agents or developers needing their own mailbox

  • How much does KeyKeeper cost?

    Paid plans start at $1/mo, per KeyKeeper's pricing page on 2026-11-03.

  • Is KeyKeeper free?

    No. Its pricing page showed no free plan on 2026-11-03.

  • What are alternatives to KeyKeeper?

    In Productivity, by use: Supercut, Temp Mail, AgentMail, TRMNL, Dayze.

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.

How we read every tool → · By INITE Atlas Desk