Give your AI agent the tools a human has
Mailosaur can provide your AI agent with
An inbox with unlimited email addresses
Phone numbers for SMS testing
Programmatic one-time passcode extraction
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Where your AI agent gets blocked
An AI agent can open a browser, navigate your product, and begin signing up- the problem comes when the flow requires an email address, a phone number, or a one-time passcode.
Some teams try to solve this by using shared inboxes or setting up accounts for their agents. These approaches do not scale well and often introduce security and access issues. They also rely on tools that were not designed for automation.
Everything your agent needs to proceed
Mailosaur provides controlled access to the same communication channels your users rely on, exposed through a simple API.
A real inbox your AI can use
Create email addresses on demand, register accounts, and retrieve messages programmatically.
A phone number for SMS flows
Receive verification messages, alerts, and passcodes without using personal numbers or physical devices.
Programmatic OTP extraction
Extract one-time passcodes directly in your test flow, so the agent can continue without manual input.
How teams use this in practice
Teams use Mailosaur in different ways depending on how they build their agents.
Some give agents a persistent inbox and phone number, allowing them to complete flows in the same way as a user. Others use Mailosaur in automated test runs, where an agent signs up, logs in, triggers messages, and verifies outcomes across email and SMS.
Why this problem keeps coming up
Without purpose-built tooling, teams often connect agents to real inboxes or create temporary accounts just to complete verification steps. This leads to duplicated setup, inconsistent access, and extra overhead managing those accounts.
Some tools offer isolated inboxes or numbers, but they sit outside the rest of the testing workflow and do not integrate cleanly.
Built on infrastructure you already trust
Created to test email and SMS workflows at scale, Mailosaur provides inboxes and phone numbers which are disposable, isolated, and accessible through a consistent API. You can create, use and remove them without affecting other environments. This approach fits naturally with AI agents- instead of adapting user tools for automation, you give your agent access to systems that are designed for programmatic use from the start.
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