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Dev tools · April 29, 2026

AgentCourier

Email Inboxes for your AI agents

What it does

Send and receive email programmatically via a REST API. Create an inbox in one API call. Built for AI agents, automation, and developers.

Does the same job

all alternatives →
  • AgentMailApr 2026 · ▲275

    Email Inboxes for AI Agents

  • AE
    AgentMail – Email infra for AI agents2025 · chat.agentmail.to · ▲121

    Hey HN, we're Haakam, Michael, and Adi. We're building AgentMail (https://agentmail.to/), an API to give AI agents their own email inboxes. We’re not talking about AI for your email, this is email for your AI. We started building email agents because they can converse with users in their inboxes, automate email-based workflows, and authenticate with third-party applications. Given these unique capabilities, we think email will be a core interface for agents. But we were building on top of Gmail, which was a struggle: poor API support, expensive subscriptions, rate limits,…

  • Atomic Mail AgenticJun 2026 · atomicmail.ai · ▲268

    Let your agents read, send, and react to email autonomously

  • Outerspan2025 · ▲205

    Deploy agents that have their own email inbox

  • Cloudflare Email ServiceApr 2026 · blog.cloudflare.com · ▲168

    Turn any email inbox into a native interface for AI agents

  • AE
    Agent.email – sign up via curl, claim with a human OTPMay 2026 · ▲99

    Hi HN! We're Haakam, Michael, and Adi from AgentMail- a ycs25 company. We give AI agents their own email inboxes. Recently, we ran an experiment called Agent.Email. It's a signup flow designed specifically for AI agents instead of humans. The inspiration came from a few comments we received when we did our seed launch a few months back. They all came from the very apt observation that agents not being able to sign up to a product made for agents without human credentials was ironic and unideal. This is basically the thesis we built AgentMail on: The internet was made for humans exclusively,…

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