Darline Casseus - Prompt Engineer | Contra
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Darline Casseus
Founder in Ai
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Lyon, France
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Lyon, France
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I built the product I wish existed. 🩺 Your API is slow. Is it Stripe? SendGrid? OpenAI? Or your own code? Most teams guess for hours. For the #FlowstepChallenge I prototyped APIDoctor: paste the slow endpoint, and it traces every third-party call behind it — then tells you which external dependency is the bottleneck. In 30 seconds. 4 clickable screens: paste → live trace → ranked diagnosis → the actual fix with before/after code. Here it caught Stripe payment_intents eating 49% of checkout latency with no timeout configured. Built with one structured prompt then iterated screen by screen on the @flowstep_ai canvas. Real product, real waitlist: apiais.site (http://apiais.site)
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Sanité Bélair. Jean-Jacques Dessalines. Two names that ended an empire — and never made it onto a piece of clothing worth wearing. VETYE turns Haitian history into Afro-modern streetwear. Because heritage shouldn't only live in textbooks.
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