AgentMail

AgentMail gives AI agents their own functional email inboxes, the same way Gmail gives humans one. It's an API-first platform built specifically for two-way email communication in agentic workflows, not just one-way notification sending like Mailgun or SendGrid.

The core idea is simple: your agent needs to receive a 2FA code, parse an invoice, or reply to a support thread. AgentMail handles the inbox infrastructure so you don't have to bolt email onto a system that wasn't designed for it.

Key capabilities:

• Instant inbox creation via a single API call, no domain verification or waiting period
• Threads and replies so agents can hold real back-and-forth conversations, not just send one-off messages
• Attachment handling for parsing invoices, receipts, and other documents automatically
• Semantic search across messages, useful when an agent needs to find specific content in a large inbox
• Real-time events via webhooks so agents react to incoming mail immediately
• Custom domains for teams that want inboxes under their own domain
• SDKs and MCP support with typed Python and TypeScript clients

Common use cases include browser agents that extract OTP codes during signups, scheduling assistants that manage calendars over email, document processors that ingest attachments, and customer service agents that route support emails. Any agent that needs to communicate over email fits the pattern.