/goal + Opus 5 Low = Full SaaS Apps INSANTLY (Claude Code)
I built a complete SaaS MVP — auth, database, Stripe payments, AI image generation, marketing pages — in under 20 minutes using ONE command inside Claude Code: /goal. The stack: Claude Code (Opus 5 on low) + Convex + Clerk + Stripe + OpenRouter + Next.js. Total usage: 115K tokens — about 12% of a single context window. This works on the $20 plan. The app is a YouTube thumbnail generator: paste your title, pick a style, get four 1280×720 thumbnails with face-consistent references and an editable text layer. By the end of the video it has working Stripe payments, a credits system, and a live dashboard. Check out Harbor: https://harborseo.ai WHAT'S IN THIS VIDEO • The exact /goal prompt that scaffolds an entire SaaS from one message • Wiring Clerk auth with the Convex JWT template in 60 seconds • Convex as your entire backend + database • Stripe dynamic pricing, plans and credits — generated, not hand-written • OpenRouter + Nano Banana 2 for image generation • Why Opus 5 on LOW is enough (and what it costs in tokens) • Testing the full payment flow with a Stripe test card CHAPTERS 0:00 — SaaS MVP in 20 minutes: the challenge 0:15 — The stack: Convex + Clerk + Stripe + OpenRouter + Next.js 0:49 — Grabbing Stripe API keys 1:04 — Clerk auth + the Convex JWT template 1:49 — Convex: database + backend in one 2:22 — OpenRouter key + Nano Banana 2 docs 3:14 — The /goal command: one prompt, entire app 4:11 — Harbor: SEO content for your new SaaS 6:30 — Why Opus 5 LOW is enough (115K tokens) 7:10 — How /goal actually works 7:54 — Production build 8:25 — The finished app: tour + login 8:57 — Testing Stripe payments (test card) 9:37 — Face references + credits system 10:03 — Generating thumbnails with the tool I just built 11:11 — What this means Claude Code is Anthropic's CLI coding agent. /goal is the command that turns a single prompt into a finished, deployed project — this is the closest thing to one-shot app development that exists right now. Work with us: https://incomestreamsurfer.com Try Bright Data: https://brightdata.com/?promo=incomestreamsurfers claude code, claude code tutorial, claude code goal command, build saas with ai, saas mvp, ai coding, anthropic claude, opus 5, convex, clerk auth, stripe integration, openrouter, nextjs, ai app builder, build an app with ai, vibe coding, ai saas builder, micro saas, indie hacker, ai tools 2026, claude code saas, one prompt app, ai coding agent, cursor alternative, build mvp fast, saas in 20 minutes, ai thumbnail generator, claude opus, anthropic api, full stack ai #ClaudeCode #SaaS #AICoding
