THE KEYKEEPER FIELD GUIDE

From first inbox to first integration.

Pick the guide for what you want to do. Every quickstart starts with the mail service you can use today.

Create an address, read and send mail, and protect your account.

Create a mailbox and use a secret key to receive and read messages.

Requests, responses, authentication, limits, attachments, and safe retries.

The current sending API and the path to a controlled transactional email pilot.

Verify ownership, create aliases or separate mailboxes, and move mail safely.

Prepare addresses, preserve old mail and switch only the mail DNS records.

Let an assistant draft while you review and approve every message.

Fund sending or activate prepaid domain hosting with native USDC on four networks.

OpenAPI 3.1 schemas for the supported agent mail API.

A visual introduction to the inbox, private mail, custom domains and agent workflows available today.

What has shipped and what comes next, with agent integrations and practical OpenPGP as our next priorities.