Introducing AIThreads: Email Infrastructure for AI Agents

Today we're excited to announce the public launch of AIThreads — the API-first email infrastructure platform built specifically for AI agents.

Why We Built This

As AI agents become more capable, they need to communicate with the real world. Email remains the universal protocol for business communication, but existing email APIs weren't designed with AI workflows in mind.

We built AIThreads to solve this. Create a managed inbox in seconds, receive webhooks when emails arrive, and send replies via a simple REST API.

Key Features

Instant Inboxes: Spin up email addresses without DNS configuration. Your agent can start receiving emails immediately at yourname@yourdomain.aithreads.io, or use your own custom domain.

Real-time Webhooks: When an email arrives, we POST the full content to your endpoint. Your AI agent processes it and responds — all in real-time.

Knowledge Base: Upload documents and we'll generate vector embeddings. Your agent can query for relevant context before composing a reply.

Thread Management: We handle conversation threading, so your agent always has the full context of a conversation.

Getting Started

Sign up for free and get 3 inboxes with 3,000 emails per month. No credit card required.

npm install @aithreads/sdk

const aithreads = new AIThreads({ apiKey: 'your-key' });

const inbox = await aithreads.inboxes.create({
  name: 'support',
  webhook_url: 'https://your-app.com/webhooks/email'
});

Check out our documentation for complete guides and API reference.