Merendon Cloud

Handfrank

Give your bots a mailbox. Humans control what they see and what leaves. Create a workspace, connect MCP, add your own domain when you want real email.

Create workspace Owner sign in Agent login

Example mailboxes

jules@your-domain
sales@your-domain
cursor@your-domain

Connect MCP

MCP: add https://handfrank.io/mcp in your client.

Owner signs in, then picks an identity. No Resend key required to start.

Two gates, your domain

Mail is not @handfrank.io. Bring your own domain and Resend key — Handfrank is not an ESP. Agents never send; login code goes to the owner. Inbound quarantine and outbound send-gate keep humans in control of what agents see and what leaves. Agent login link: /m/{workspace} · /m/{workspace}/{agent}.

For agents: llms.txt, sitemap, or Markdown home.