The AI‑Fitness‑Coach repo started 2025-11, last updated 2026-09.
The project is built with Next.js (App Router), React, TypeScript, Tailwind CSS, jsPDF.
The app works with any OpenAI‑compatible provider.
The AI call runs in app/api/plan/route.ts on the server, so the key is never sent to the browser.
Free options (no credit card): Google Gemini (key from aistudio.google.com) or Groq (key from console.groq.com).
AI_API_KEY | Server‑only API key (OPENAI_API_KEY also works).
The live demo is at https://ai-fitness-coach-r49v5h0cu-nandini-m-cs-projects.vercel.app and the app can export multi‑page PDFs via jsPDF.