A CLOSER LOOK AT KEYKEEPER

Private mail.
Built to do more.

Write without distraction. Bring your domain. Give your agent an inbox. Thoughtful email, down to the small details.

Free to start. No ads. No advertising trackers.

Inside KeyKeeperActual interface
The KeyKeeper inbox with compact conversations, stars and sidebar folders.

Conversations in view. Everything else within reach.

Fictional messages. Real product.

01 / YOUR CONVERSATIONS COME FIRST

Privacy is part
of the foundation.

Mail infrastructure we operate. An inbox without advertising trackers. And OpenPGP end-to-end encryption, with a key only you can unlock.

  • Remote images load when you allow them
  • Received HTML is isolated from the app
  • Authenticator codes and recovery options
OPTIONAL OPENPGP

Your words. Their key.

When every recipient has a key, your browser encrypts the message text to them. Encrypted mail you receive opens right in your inbox, with its signature checked.

What does OpenPGP protect?

The message text. With OpenPGP on, your message text never reaches KeyKeeper unencrypted, not even as a draft. Your key is created or imported in Settings, and KeyKeeper stores it only locked with a passphrase you choose. Subjects, addresses and times stay visible, as email requires. Attachments and formatted messages can’t be encrypted yet, and messages sent as PGP/MIME can’t be read in the browser yet. Mail from people who don’t use your key arrives readable by KeyKeeper, like standard mail.

02 / THE DETAILS YOU USE EVERY DAY

A calmer place
to get things done.

Less interface in the way.
More care in how it works.

Room to write

A distraction-free editor, formatted messages, signatures and recipient autocomplete.

Send on your schedule

A 20-second Undo Send window. Send Later with a date, time zone and a place to manage what’s waiting.

Pick up where you left off

Saved drafts keep the message, sender and attachment files together when you come back.

Keep the conversation

Threaded messages, inline replies, Reply all and forwarding with the original attachments.

Find the one you need

Search across stored mail folders, star the important things and keep filters out of the way.

A little less housekeeping

Bulk mail actions with move Undo, automatic inbox refresh, a light or dark theme and navigation that fits your phone.

Meet your everyday inbox
ON EVERY MAILBOX. AT NO COST.
SPFDKIMDMARC

Sender authenticationSPF, DKIM and DMARC checks catch forged senders.

Rules and blocklistsOpen-source Rspamd scores every incoming message.

A Spam folderLikely spam is filed there. Nothing is deleted.

Not spamMoving a message back teaches the filter.

03 / SPAM, HANDLED

Spam stays
out of the way.

Every mailbox on every plan, including Free, gets the same spam filter. It costs nothing, and it runs on our own mail server, so message content never leaves it.

  • Sender authentication with SPF, DKIM and DMARC
  • Open-source Rspamd rules and reputation blocklists
  • A Spam folder, where Not spam moves a message back and teaches the filter

Near-certain spam is refused before delivery, so its sender gets a bounce. Moving mail into or out of Spam trains the filter from any IMAP app, too. Agent mailboxes get the same filter.

04 / PRIVATE AI

Private AI,
when you want it.

KeyKeeper AI is an optional $3/month add-on for Personal, Pro and Team. It runs only on Venice.ai’s end-to-end encrypted models. Each request is encrypted to a hardware-isolated enclave, so KeyKeeper and Venice don’t receive readable text, and nothing is stored or used for training.

  • An AI spam check: a second opinion on incoming mail that catches the cold outreach, SEO pitches and predatory journal invitations that rules miss
  • A ✦ AI tag in Spam, and the AI’s one-line reason when you open the message
  • A notice in your inbox when messages were filtered to Spam
  • “Not spam” makes the AI trust that sender: the whole company domain, or the exact address at Gmail, Outlook and other shared providers
  • “Clean up my inbox” reads the last 90 days, up to 1,000 messages, and suggests what belongs in Spam. Nothing moves until you choose

Writing help is coming soon. A message is checked only when every KeyKeeper recipient has the AI spam check on, and never when it’s OpenPGP-encrypted. Trust applies only to mail that passes sender authentication. Not available for agent accounts or corporate mailboxes.

KEYKEEPER AI · OPTIONAL ADD-ON

Encrypted to the enclave.

Each request is encrypted before it leaves KeyKeeper’s code and can only be decrypted inside an attested, hardware-isolated enclave run through Venice.ai.

WHAT VENICE RECEIVESCiphertext, with request metadata such as timing and size.
No readable text. Nothing stored.
What does the AI spam check read?

The subject, sender, link domains and text of an incoming message, encrypted on our servers to the enclave’s key. KeyKeeper stores standard mail to deliver it, as it does today; the AI request adds no readable copy outside the enclave. It’s off unless you subscribe.

ONE DOMAIN. DIFFERENT ROLES.
yourdomain.com
you@yourdomain.comYour personal mailbox
hello@yourdomain.comAn alias for your inbox
agent@yourdomain.comAn independent agent mailbox
Guided ownership, MX, SPF, DKIM & DMARC checks

05 / YOUR NAME ON THE DOOR

Bring the domain.
Make it yours.

Your personal address, a shared contact alias, or an agent with its own mailbox. Keep your DNS provider and website, and bring your mail to KeyKeeper.

  • Clear DNS instructions and automatic rechecks
  • A separate signing key for your domain
  • A From menu organized by domain

Personal includes 1 domain and 10 aliases for $1/month. Pro and Team add more domains and addresses, plus send-only domains whose inbox stays with another provider.

06 / AN ADDRESS OF THEIR OWN

Your agent has work to do.
Give it an inbox.

A real mailbox over REST or MCP. Register, receive and read for free. Add prepaid credits when it’s time to send.

01

A message arrives

A person or application writes to your agent’s own address.

agent@yourdomain.com
02

Your agent picks it up

A signed webhook notifies your service. Read the message through the API.

message.received
03

It prepares a reply

Use your own agent logic, with optional human approval in the example workflow.

REST · MCP

07 / MAIL YOU CAN BUILD ON

Small API.
Useful building blocks.

Connect mail to your application using REST or MCP. Send attachments, track submission and recipient delivery separately, and subscribe to signed events.

  • Idempotency keys for safe retries
  • Delivery events and invalid-address suppression
  • Key rotation and prepaid mail credits
Explore the developer tools
ONE MAILBOX. MORE WAYS IN.
RESTMCPWEBHOOKS
POST/api/v1/agent/send
GET/api/v1/agent/inbox
POST/mcp

Safe retriesKeep the same send key.

Delivery visibilityFollow the actual outcome.

Pay as you goTop up from $1.

Open the API reference

Two-factor authentication

Authenticator apps and one-use backup codes.

Account recovery

Verify an external address to help you get back in.

Control agent access

Separate read/send keys with address limits, budgets and revocation.

Encrypted backups

Off-host backups with a tested restore procedure.

ONE SERVICE. YOUR WAY IN.

Make room for
better conversations.

Free to start. Paid plans from $1/month. See plans and limits →

What’s next: encrypted attachments, writing help and deeper agent integrations.