Listed alphabetically. A tool is ranked by its reviews once it has 3.
| Tool | Reviews | Lowest paid plan | Free plan | Free trial | Public API | Runs on | Main features |
|---|---|---|---|---|---|---|---|
 beehiivCreate, grow, and monetize your newsletter with easy-to-use newsletter tools | ReviewsNone yetWrite one for beehiiv | Lowest paid planSee plans | Free planYes | Free trialYes | Public APIYes | Runs onNot confirmed | Main features
|
 ButtondownNewsletter software for people like you | ReviewsNone yetWrite one for Buttondown | Lowest paid planNot confirmed | Free planNot confirmed | Free trialNot confirmed | Public APIYes | Runs onNot confirmed | Main features
|
 GhostA powerful app for professional publishers to create, share, and grow a business around their content. | ReviewsNone yetWrite one for Ghost | Lowest paid plan$15per month, billed yearlyStarter, as of November 12, 2026 | Free planNot confirmed | Free trialNot confirmed | Public APIYes | Runs onWeb | Main features
|
 KitThe email platform for creator business owners, formerly ConvertKit | ReviewsNone yetWrite one for Kit | Lowest paid planSee plans | Free planYes | Free trial14 days | Public APIYes | Runs onNot confirmed | Main features
|
From each tool's own website. “Not confirmed” means we couldn't confirm it there, not that the tool doesn't have it. Each tool's page says when its facts were checked.
How this list is made
A tool is listed here only when we've confirmed on its own website that it has a public API. Tools we couldn't confirm it for are left out, even if they may have it. Vendors can't pay for a place on this list. Add a tool we missed