tinysend vs Kit (ConvertKit)
Kit (formerly ConvertKit) is built for the creator economy — visual automations, commerce, and landing pages — with a v4 API and its own MCP server. tinysend is leaner: send newsletters from your inbox or from an API, with a hosted inbox for replies and agent self-signup.
If you want visual automation funnels, Kit has them. If you want simplicity, email-to-publish, and agents that sign up on their own, read on.
| capability | kit (convertkit) | tinysend |
|---|---|---|
| send newsletters | yes | yes |
| write from your email client | no | yes |
| hosted inbox for replies | no | yes |
| subscriber management | yes | yes |
| custom domains | yes | yes |
| open tracking | yes | yes |
| public archive + RSS | yes | yes |
| REST API | yes | yes |
| agent self-signup (auth.md) | no | yes |
Pick Kit (ConvertKit) if you want visual automation funnels, native commerce, and landing pages for a creator business.
Pick tinysend if you want to write from your email client, keep it simple, or have an API and auth.md that AI agents can use.
Export your Kit subscribers as CSV and import them into a tinysend list, then set up your custom domain. See managing subscribers and custom domains.