Room to write
A distraction-free editor, formatted messages, signatures and recipient autocomplete.
A CLOSER LOOK AT KEYKEEPER
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.

Conversations in view. Everything else within reach.
Fictional messages. Real product.01 / YOUR CONVERSATIONS COME FIRST
Mail infrastructure we operate. An inbox without advertising trackers. And OpenPGP end-to-end encryption, with a key only you can unlock.
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.
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
Less interface in the way.
More care in how it works.
A distraction-free editor, formatted messages, signatures and recipient autocomplete.
A 20-second Undo Send window. Send Later with a date, time zone and a place to manage what’s waiting.
Saved drafts keep the message, sender and attachment files together when you come back.
Threaded messages, inline replies, Reply all and forwarding with the original attachments.
Search across stored mail folders, star the important things and keep filters out of the way.
Bulk mail actions with move Undo, automatic inbox refresh, a light or dark theme and navigation that fits your phone.
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
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.
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
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.
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.
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.
Ciphertext, with request metadata such as timing and size.
No readable text. Nothing stored.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.
05 / YOUR NAME ON THE DOOR
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.
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
A real mailbox over REST or MCP. Register, receive and read for free. Add prepaid credits when it’s time to send.
A person or application writes to your agent’s own address.
agent@yourdomain.comA signed webhook notifies your service. Read the message through the API.
message.receivedUse your own agent logic, with optional human approval in the example workflow.
REST · MCP07 / MAIL YOU CAN BUILD ON
Connect mail to your application using REST or MCP. Send attachments, track submission and recipient delivery separately, and subscribe to signed events.
/api/v1/agent/send/api/v1/agent/inbox/mcpSafe retriesKeep the same send key.
Delivery visibilityFollow the actual outcome.
Pay as you goTop up from $1.
Authenticator apps and one-use backup codes.
Verify an external address to help you get back in.
Separate read/send keys with address limits, budgets and revocation.
Off-host backups with a tested restore procedure.
ONE SERVICE. YOUR WAY IN.
Free to start. Paid plans from $1/month. See plans and limits →
What’s next: encrypted attachments, writing help and deeper agent integrations.