Introduction

Give AI agents temporary email inboxes for receiving verification emails

What is AgentInbox?

AgentInbox is an API platform for giving AI agents temporary email inboxes to receive verification emails. Unlike traditional email providers designed for humans, AgentInbox is built API-first for automated workflows.

Email agents can:

  • Receive OTP codes for two-factor authentication
  • Capture magic links for account verification
  • Extract password reset links
  • Parse invoice numbers and tracking codes
  • Continue automated workflows without human intervention

The Problem with Traditional Email

Existing email infrastructure was built for humans. Legacy providers have several limitations for agentic use cases:

No API support for creating temporary inboxes on-demand
Monthly subscriptions per inbox ($12+/month), costly for automation
Restrictive rate limits not suitable for high-volume testing
Poor developer experience for automated workflows
No built-in extraction for OTPs, links, or structured data

The Solution

AgentInbox is an API-first email provider designed for agents. Think of it like a temporary email service, but with:

Programmatic Inboxes

Create and manage inboxes via API

Usage-Based Pricing

Pay only for what you use, generous free tier

High-Volume Ready

No restrictive rate limits for testing

Real-Time Events

Get notified instantly with webhooks

Simple Authentication

Use API keys, no complex OAuth flows

Built-in Extraction

Automatically extract OTPs, links, and codes

Universal Extraction

7 built-in types + LLM fallback

Agent Sessions

Group inboxes and track execution

How It Works

1

Create an Inbox

Create a temporary inbox via API with a TTL (time-to-live). The inbox gets a unique email address.

2

Use the Email

Use the inbox email address in signup forms, password resets, or any verification flow.

3

Wait for Email

Use the wait API to block until the expected email arrives, or poll for messages.

4

Extract Data

Automatically extract OTPs, magic links, or other structured data from the email.

5

Continue Workflow

Use the extracted data to continue your automated workflow. The inbox auto-expires.

Get Started

Ready to build? Head to the Quickstart to create your first inbox.