mails0.com — Open Source Email API for AI Agents

# mails0.com > Open-source email infrastructure for AI agents. Send, receive, search, and extract verification codes. ## Docs - [Full agent reference](https://mails0.com/agent.md): Complete CLI, HTTP API, Python SDK, and usage patterns. Start here if you are an AI agent. - [Agent skill file](https://mails0.com/skill.md): Downloadable skill for Claude Code and OpenClaw. - [AI discovery index](https://mails0.com/ai-index.json): Machine-readable map of product positioning, search intents, core pages, packages, and answer-engine summaries. - [API docs](https://mails0.com/docs/): Human-readable documentation for all endpoints. - [Email API for AI agents](https://mails0.com/email-api-for-ai-agents/): Commercial landing page for programmable agent inboxes, search, replies, MCP, and self-hosting. - [Email verification API for AI agents](https://mails0.com/email-verification-api-for-ai-agents/): OTP, confirmation-link, and browser-agent signup workflow. - [AI agent email use cases](https://mails0.com/use-cases/): Hub page for the main agent email workflows and internal topical cluster. - [Email MCP server](https://mails0.com/mcp-email-server/): Open-source MCP email tools for Claude Desktop, Claude Code, Cursor, Windsurf, and compatible clients. - [Claude Code email](https://mails0.com/claude-code-email/): Scoped mailbox setup for Claude Code through CLI, skills, or MCP. - [Playwright email verification](https://mails0.com/playwright-email-verification/): Real signup and OTP testing with Playwright and mails0. - [Cloudflare email for agents](https://mails0.com/cloudflare-email-for-agents/): Self-hosted Cloudflare Workers, D1, R2, and Email Routing architecture. - [AgentMail alternative](https://mails0.com/agentmail-alternative/): Fair comparison for builders who need open source and self-hosted control. - [Playground](https://mails0.com/playground/): Browser terminal for the mails0 CLI with demo and live modes. - [Quickstart](https://mails0.com/docs/quickstart.html): Get