Spent two years watching email marketers do the same thing: drag blocks around in Klaviyo for an hour, send a test, squint at it on mobile, change the CTA button color, send another test. No feedback until the open rate came back three days later.
kopi generates a complete HTML email from a text brief in under 5 minutes, then runs an automated design critique before anything ships. Every email gets scored 0-100 across 12+ criteria: layout hierarchy, CTA contrast, mobile readability, whitespace distribution, font legibility. The score isn't decorative — it tells you which specific element is dragging the number down.
A flash-sale email from the public gallery at trykopi.ai/emails scored 91/100. The critique flagged one thing: secondary CTA was competing visually with the primary button at near-identical contrast ratios. That's the kind of feedback that used to require a senior designer on a review call.
The critique runs on the same criteria every time, which means you're not getting a different answer depending on who reviewed it last Tuesday versus today.
If you're already in Klaviyo, there's a direct export. If you work in Claude Code or Cursor, kopi runs as an MCP server so you can generate and critique inside your existing editor. Brand-specific design systems are supported — it learns your fonts, colors, and layout preferences so generated emails don't need to be re-styled to match your kit.
The gallery has 400+ emails all scoring 80+: trykopi.ai/emails
Repo and docs: trykopi.ai
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