MailCraft vs Mailchimp: Why Developers Are Switching

The transactional gap

Mailchimp's transactional email story runs through Mandrill, a separate add-on product that requires its own Mailchimp account tier to unlock. That means two dashboards, two sets of API credentials, and — critically — two separate contact and suppression systems that don't automatically share data. A contact who unsubscribes from your Mailchimp newsletter isn't necessarily suppressed from Mandrill's transactional sends, and vice versa.

MailCraft treats transactional and marketing email as the same product from the start: one API key, one contact database, one suppression list. An address suppressed after a transactional send is skipped by every future campaign, and the reverse is also true.

Pricing that penalizes success

Mailchimp prices primarily by contact count. That model punishes exactly the behavior you want to encourage — growing your list — regardless of whether those contacts are engaged, or whether you’re emailing them once a month or never. A list that grows from product usage (every new signup becomes a contact) can push you into a higher pricing tier without you sending a single additional email.

MailCraft prices by email volume, with unlimited contacts on every plan, including the free tier. Store as many contacts as your product creates; pay for what you actually send.

API-first vs. API-eventually

Mailchimp has an API, but it was layered onto a product designed around a visual dashboard, and it shows: the developer experience is noticeably less polished than the marketer-facing UI. MailCraft is built API-first — a REST API, official SDKs for Node.js, PHP and Laravel with more languages on the way, and signed webhooks for delivery events — with the dashboard as a view onto the same data the API manages, not the other way around.

What Mailchimp still does well

To be fair to Mailchimp: if your team is primarily marketers with no developer resourcing, and you have no transactional email needs at all, its visual editor, template library and integration marketplace are genuinely mature and well-built. The switch to MailCraft tends to happen specifically once a developer owns (or is about to own) the email stack, and "connect this to our product’s events" becomes a real requirement rather than a nice-to-have.

One more thing: AI agents

MailCraft ships an MCP server with 60+ tools so AI agents — Claude Code, Claude Desktop, Cursor and others — can draft, segment and send email through natural language, backed by the same API your application already uses. That’s a meaningfully different starting point than adding AI on top of a dashboard-first product built over a decade ago.