Use case

Temporary email for AI agent signups

An agent that can browse and click still gets stuck at "check your email". A temporary inbox with tools the agent can call closes that gap.

Why agents hit a wall at email verification

Many sign-up flows end with a code or link sent to an inbox. A human would open their mail; an agent has no mailbox of its own, and giving it yours is a bad idea.

The loop an agent runs

  1. Ask Emailsify for a fresh @emailsify.com address.
  2. Fill the signup form with that address and submit it.
  3. Ask it to wait for the code at that address. It returns the moment a verification code or link arrives.
  4. Enter the code (or open the link) and continue the task.

Why wait instead of polling

Polling in a loop burns tokens and time. The wait step is a single call that blocks until the email arrives, then returns only the extracted code or link, not the whole message.

Safety: email is untrusted input

Anyone can email an address, so anything inside a message is attacker-controlled text. Emailsify returns a cleaned, size-limited, clearly labelled view of mail and never returns raw HTML. Your agent should still treat message content as data, never as instructions.

See the guide on prompt injection through email for the full threat model.

Frequently asked questions

Which AI tools can use this?

Any MCP-compatible client, such as Claude Code, Cursor, VS Code with Copilot, Windsurf and Gemini CLI.

Do I need Pro?

The agent tools (MCP) are part of Pro and Scale. The browser inbox is free.

Can an agent read the full email?

Yes. It can read a message as a cleaned, truncated text view labelled as untrusted content.

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