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AI Inbx provides email infrastructure designed for sending and receiving messages in conversational workflows. Perfect for AI agents that need to communicate with companies and individuals through email.

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How it works

1

Send

Send emails from your verified domains using our simple API
2

AI Inbx handles the rest

We deliver your message, track replies, and continuously group related emails into one smart thread
3

Receive & manage effortlessly

Incoming emails are captured automatically, stored for easy retrieval, and surfaced in your dashboard or via the API

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Key features

  • Instant org domain: Every organization gets orgslug.aiinbx.app automatically. Start sending and receiving immediately—no DNS setup required (learn more).
  • Effortless inbound email: Replies and new messages to your domain are received automatically – no mailbox polling, no extra setup
  • Smart threading: Our AI groups related emails into the correct conversation, even across multiple senders at the same company
  • Durable storage: We keep your emails around so you can revisit or replay them whenever you need
  • Simple API: Send an email with a single POST request
  • Conversation management: Browse and reply to threads in one streamlined dashboard
  • AI-first design: Built from the ground up for AI agents and automated workflows

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Get started

Quick setup

Get your API key and send your first email in under 5 minutes
 Ready to start? Get your API key or jump straight to our quickstart guide.

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Example starter

Looking for a production-ready example? Check out the Mr Sales starter — an AI email agent that auto‑replies on inbound emails and continues multi‑turn conversations using AI Inbx, Firecrawl, and Vercel AI SDK. Mr Sales — AI email agent starter on GitHub