Newsletter AI Agent is an open-source tool designed to fully automate the newsletter pipeline. It connects to your favorite RSS feeds or content sources, uses AI to extract and summarize the most relevant highlights, generates visually formatted email templates, and integrates with platforms like MailChimp or SendGrid. Users can customize topics, set delivery schedules, segment audiences, and review drafts before sending. With support for multi-language content and API-based extensibility, it scales from solo bloggers to enterprise marketing teams.