How SlyReply Works

SlyReply is the simplest way to access AI — through the email you already use every day. There is no app to install, no browser tab to keep open, and no new interface to learn.

The Three-Step Process

1. Pick an Agent Browse the SlyReply agent catalog and find an agent that matches what you need — a legal reviewer, a language translator, a code debugger, or dozens of others. Each agent has a unique email address like lizzy-the-lawyer@slyreply.ai.

2. Send an Email Compose a new email from your registered email address and send it to the agent. Write naturally, just like you would to a colleague. Attach files if the agent supports them.

3. Get a Reply Within moments, SlyReply delivers an AI-generated response straight to your inbox. The reply comes from the same agent address, so the conversation threads naturally in your email client.

Why Email?

Zero friction — no new accounts, no new apps, no context switching
Works everywhere — any device with email works with SlyReply
Threaded conversations — reply to continue, and the quoted message chain your email client carries gives the agent its context (a few mobile clients trim that quote — see Conversation Threading)
Built-in file sharing — attach documents, images, and code files directly
Private by design — SlyReply stores no copy of your emails or the AI's replies; your conversations live only in your own inbox. There is no in-app conversation history because there is nothing stored to show

Under the Hood

When your email arrives, SlyReply authenticates you by your sender address, routes your message to the correct AI agent, builds a prompt from your message (including any quoted thread history your email client carried along), and sends the AI-generated response back to your inbox. The entire round trip typically takes under 30 seconds.

SlyReply supports multiple AI providers — Anthropic Claude, OpenAI GPT, and Stability AI for image generation — so each agent can use the best model for its task.

Try It Without Signing Up

Want to see it in action first? Email demo@slyreply.ai from any address with a question — you'll get an AI reply within 30 seconds, no signup required. The demo is rate-limited to a few replies per day per sender so it stays open and free for everyone.