The blank canvas problem in email marketing is real: Klaviyo, Mailchimp, and every tool like them drop you into a template library and expect you to know what good looks like. You pick something close, spend an hour tweaking, and ship hoping the CTA is visible on mobile.
I built kopi to close that loop. You write a brief — product name, goal, tone, any brand constraints — and it generates a complete HTML email in under 5 minutes. That part isn't remarkable. What comes next is: every generated email gets an automated design critique across 12+ criteria (layout hierarchy, mobile readability, CTA contrast, whitespace balance) and returns a 0–100 score before you export anything.
The scoring isn't cosmetic. A 74 tells you the CTA button contrast is failing WCAG AA at mobile viewport widths and the heading hierarchy collapses on small screens. A 91 tells you what's holding it back from higher. The public gallery at trykopi.ai/emails has 400+ emails that cleared 80+ — not curated hand-picks, just the ones that passed the bar.
For teams already in Klaviyo, there's a direct export so you're not copying HTML by hand. If you're working in Claude Code, Cursor, or ChatGPT, it runs as an MCP server so email generation is a tool call away. Brand design systems are supported too — feed it your fonts, colors, and layout preferences once and it applies them consistently.
The thing that changed how I think about email design: seeing 400 scored emails in one place makes the patterns obvious. CTAs buried below 600px on mobile. Hero sections that look great in desktop preview and collapse into unreadable stacks at 375px. The scorer catches what preview mode hides.
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