mails0
Open-source email infrastructure for AI agents — inboxes, OTP, search, MCP, Cloudflare self-host.
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mails0.comAbout mails0
Open-source agent email API (MIT). Bootstrap a 72h receive-only inbox, extract OTPs, search threads, or self-host on Cloudflare Workers + D1 + R2. CLI, Python SDK, Skill, and MCP (mails-agent-mcp).
Does ChatGPT recommend your AI tool?
If you're building in developer-tools, run a free AI-visibility scan on your own product — we ask ChatGPT across 5 prompt angles and score how often you get named. ~30 seconds, no signup, no card.
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Is mails0 your tool?
This is the page shoppers and AI assistants read when they look up mails0. The one-time $99 Verified tier adds:
- Our 12-point AI-visibility scan of mails0, emailed to you: which ChatGPT prompts named you, which named a competitor instead, and the wording the model used.
- The 🛡️ Verified badge on this page and next to your name in the category and newest-tool lists.
One-time $99, no subscription, nothing to fill in again. Your link back to your site is marked rel="sponsored", as Google requires for paid listings.
Secure Stripe checkout — Apple Pay, Google Pay, Link or card. Nothing to fill in again.
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