Loops ranks #8 in Transactional Email & Developer Email APIs AI search.

Loops (operated by Astrodon Inc.) is a Y Combinator-backed email platform built for software companies, founded in 2022 by Chris Frantz and Adam Kaczmarek. It consolidates transactional email, marketing campaigns, and lifecycle automation into a single product—eliminating the common pattern of running separate tools for developer email (e.g., SendGrid) and marketing email (e.g., Mailchimp or Braze). Core features include a Notion-style block editor, a visual loop builder for automated sequences, event- and property-based segmentation, and a REST API with SDKs for JavaScript, Ruby, and PHP. Pricing is contact-based with all features available across tiers. The platform holds SOC 2 Type II certification and is GDPR compliant. Notable customers include Framer, Perplexity, Linear, Clerk, and Reuters.

Loops is a SaaS-focused email platform that unifies transactional, marketing, and lifecycle email in a single tool. It provides a Notion-style editor for non-technical users, a loop builder for automated sequences, event-driven segmentation, and a developer API with SDKs—allowing product and marketing teams to collaborate on a shared contact base without managing multiple email service providers.