MailCat – Email service for AI agents (open-source)
Hi HN, I built MailCat because my AI agents kept getting stuck at "please verify your email." The key insight: if your AI agent can read documentation, it can set itself up. Just paste this into Claude Code, OpenClaw, or any AI agent: "Read https://mailcat.ai/skill.md and set up a MailCat mailbox for yourself. Save the token securely." That's it. Your agent reads the skill.md, creates a mailbox via API, and handles email verification autonomously from there. What it does: - Instant mailbox creation via API - Verification codes auto-extracted from emails - 1-hour retention…
MailCat – Email service for AI agents (open-source) launched on February 21, 2026 with 9 votes, #1,123 of 16,628 launches that month and more than 75% of that year's launches.
What it does
Give your AI agent (e.g., OpenClaw) its own email address. Instant mailbox creation, receive emails, no signup required. - mailneural/mailcat
In the maker’s words, at launch
Hi HN, I built MailCat because my AI agents kept getting stuck at "please verify your email." The key insight: if your AI agent can read documentation, it can set itself up. Just paste this into Claude Code, OpenClaw, or any AI agent: "Read https://mailcat.ai/skill.md and set up a MailCat mailbox for…
Does a similar job
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Atomic Mail AgenticJun 2026 · atomicmail.ai · ▲268Let your agents read, send, and react to email autonomously
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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,…
- AEAgent.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,…
MailMoltFeb 2026 · mailmolt.com · ▲93Give your AI agent its own verified email address — not access to yours. Send and receive via REST, SMTP, or MCP. Built for LangGraph, CrewAI, Mastra, Claude Code, Cursor. Human-in-the-loop approval, trust scores, GDPR-ready.
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