3 karma · joined February 12, 2026
The problem: email marketing platforms charge you more as your list grows. A 50k list on Klaviyo runs $790+/mo. On Mailchimp it's $630+. The underlying cost of sending email is fractions of a penny. The markup is enormous.
TopMail is $20/mo flat. Unlimited contacts, unlimited sends. We run on SES, deliverability is solid, and we pass the savings through instead of marking up 10-50x.
Built API-first: full REST API, Node SDK (npm install @topmail/sdk), and docs specifically for coding agents. You can create contacts, build campaigns, and trigger sends entirely from code or from an AI agent. No dashboard clicking required.
AI is built in for generating email copy, subject lines, and campaign optimization — but that's table stakes at this point.
API docs: api.topmail.so/developers. Agent-specific docs: api.topmail.so/developers/coding-agents.
Quick 2-min video showing how TopMail compares to Mailchimp/Klaviyo pricing and a little walkthrough:
https://www.youtube.com/watch?v=WmgM7_CncSc
I'd love feedback on the API, the pricing model, or anything else. Happy to answer questions.