SamurAIGPT / prompt-architect Star 8 Code Issues Pull requests Open-source AI prompt engineering workspace — production-ready Next.js SaaS with conversational refinement, multi-engine targeting (ChatGPT, Claude, Midjourney), and saved prompt library. Free PromptBase & PromptPerfect alternative with Stripe, credits, NextAuth, Prisma. stripe nextjs openai prisma tailwindcss saas-boilerplate nextjs-boilerplate nextauth prompt-engineering prompt-generator generative-ai chatgpt-prompts midjourney-prompts llm-tools prompt-library ai-saas ai-prompt-engineering prompt-optimizer promptbase-alternative promptperfect-alternative Updated Jun 10, 2026 JavaScript