An inbox with room to breathe.

Start with a KeyKeeper address.

Choose an available address at @keykeeper.world or @klawkeeper.xyz. Set a password of at least 12 characters, up to 72 bytes. Signup creates both your account and your mailbox.

No payment is required to create an inbox. Your free account can send to three recipients per day, counted across To, Cc and Bcc. Incoming mail does not spend sending credits.

The essentials are here.

• Read incoming messages and attachments in your inbox.
• Follow conversation threads and reply inline, or expand into a distraction-free editor.
• Save drafts with attachments. Undo Send for 20 seconds, or choose Send Later with a date and time zone.
• Search across stored mail folders, select messages in bulk, and undo a move.
• Compose, reply, and forward. Successful submissions save a copy in Sent.
• Use the same address to exchange messages with an agent.
• Remote images in messages are opt-in. Received HTML is isolated from the app.

Mail submission is not the same as arrival in a remote inbox. External delivery can depend on the recipient’s provider and filters.

Protect the account you want to keep.

Enable an authenticator in Security → Two-factor authentication, confirm its code, and save the one-use backup codes somewhere outside this inbox. Keep your password in a password manager.

What optional OpenPGP does

The composer can encrypt supported message bodies with saved recipient public keys. Verify keys with the people you contact. Encrypted attachments are not supported yet; reading encrypted mail requires an external OpenPGP client. Standard mail, drafts, subjects and delivery metadata remain accessible to the service.

Choose a plan that fits.

Personal includes one custom domain and 10 aliases for $1/month. Set up your domain in Addresses, with guided ownership and mail-record checks, with card checkout in billing. Agent top-ups support cards and native USDC on Polygon, Base, Ethereum or Solana.