Dev.to
7/15/2026
Technical comparison of 6 newsletter platforms: APIs, webhooks, and developer surface area
Original: I Spent 3 Weeks Reverse-Engineering Newsletter Platforms — Here’s What Matters for Developers
Short summary
A developer-focused comparison of six newsletter platforms (Beehiiv, Kit, Mailchimp, Substack, Ghost, MailerLite) evaluating API quality, webhooks, data portability, and payment ownership rather than just pricing and UI. Ghost and Kit offer the strongest developer surfaces, while Substack lacks a public API for subscriber management. The article argues that API quality and control over technical layers determine how far a newsletter platform can scale before becoming a constraint.
- •Compares 6 newsletter platforms on API quality, webhooks, and data portability
- •Ghost and Kit rank highest for developer experience; Substack lacks public API
- •Technical layer control (delivery, subscriber management, monetization) determines platform scalability
Generated with AI, which can make mistakes.
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