About

Engineer, writer, occasional YouTuber. Helped build Census (acquired by @Fivetran), ran @Highrise, @ycombinator alum.

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Top 5 Launch
Top 5 Launch
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Tastemaker
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Gone streaking
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Maker History

  • AlliHat
    AlliHatClaude AI in your Safari sidebar
    May 2026
  • Tres Cosas
    Tres CosasMove your life forward with three easy things
    Mar 2024
  • Wear A Mask, Please
    Wear A Mask, PleaseTake a mask. Pay what you can.
    Jul 2020
  • Census
    CensusActivate your customer data in all your tools, today ⚡
    May 2020
  • FilmHope
    FilmHopeA/B test YouTube titles & thumbnails
    Oct 2019

Forums

Nathan Kontny

29d ago

AlliHat - Claude AI in your Safari sidebar

Claude had a Chrome extension. Safari didn't. So I built AlliHat. Open the sidebar and it sees the page you're on. Ask anything. Highlight text for instant explanations. Agent Mode clicks, fills forms, and navigates. Workflows run repeated tasks in one click. Memory means you never re-explain yourself. History is saved per domain. Bring your own Claude API key, or use Apple Intelligence on-device. Your key goes straight to Anthropic. No tracking. No analytics. $29.99/year after a free trial.
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