mails0

Open-source email inboxes and OTP extraction for agents.

AI tool
Free

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Pricing

Free and open source (MIT); hosted pricing is on the site.

Overview

mails0 is open-source email infrastructure for agents: send, receive, search and extract OTP codes, with MCP tools and Cloudflare self-hosting. The GitHub project Digidai/mails (MIT) backs the product at mails0.com. An agent with send tools can send mail from inboxes you connect, so limit those tools before you give it access.

Key features

Send / receive / search
OTP extraction
MCP tools
Cloudflare self-host

Use cases

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Last updated 2026-11-06

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