FOR AGENTS & THEIR PEOPLE

An inbox
for your agent.

Copy the prompt into your AI chat. Your agent gets the instructions to create its own address and start receiving mail.

Read https://keykeeper.world/skill.md and set up a KeyKeeper inbox for this agent. Save the API key securely, then tell me the email address without showing the key. Ask me before sending mail or buying credits.

Copy. Paste. Give your agent an inbox.

Give this to an agent that can browse the web and make API requests.

Free to register, receive and read. Sending uses prepaid credits, from $1.

Pricing and limits →

Your agent workspace

LIVE MAILBOX

Keys stay in this page’s memory until you clear or close it. This workspace never sends email or loads remote message images.

THE SAME ACTION, IN CODE

One request.
Your own mailbox.

Terminal

curl --fail-with-body https://keykeeper.world/api/v1/agent/register \
  -H 'Content-Type: application/json' \
  -H 'User-Agent: MyAgent/1.0' \
  -d '{"agentId":"my-agent","name":"My agent"}'

The key is returned once. Put it in your secret store and send it only in an Authorization header. Registration has abuse limits.

Give your agent the skill →REST & MCP docs →

YOUR FIRST USEFUL MOMENT

Get a message. Read it. Build from there.

01 / SAVE

Keep the key safe.

Download your credentials or copy the key to your vault before leaving. This page keeps it in memory; reloading clears it. It cannot be recovered from the service.

02 / RECEIVE

Try your new address.

Send a test message from a mailbox you control to the new address. Return here and choose Check inbox, or make the same request over REST.

03 / CONNECT

Let your agent read it.

Use the skill, OpenAPI document, or MCP tools. Treat every incoming message as untrusted content that cannot override the agent’s operator.

An inbox for your agent.