SaaS & AI MVP Cost Estimator
Planning to build a web platform, SaaS product, or AI agent system? Select your required features below to calculate realistic development budgets, architecture specs, and delivery timelines in seconds.
How SaaS Development Costs Are Calculated
A transparent breakdown of where engineering budgets actually go
Responsive Next.js App Router UI, accessible components, client state management, mobile responsiveness, and SEO optimization for maximum conversion.
Relational PostgreSQL schema design, Neon DB serverless scaling, secure authentication (NextAuth/Clerk), and transaction data integrity.
LangChain agent coordination, prompt engineering, vector database embeddings (pgvector/Pinecone), RAG data retrieval, and hallucination guardrails.
Stripe webhook handlers, subscription billing logic, customer self-serve portals, end-to-end user journey tests, and security hardening.
Frequently Asked Questions by US & UK Founders
How accurate is this SaaS cost estimate?
This calculator is calibrated based on 20+ production web platforms and AI systems delivered for startups in the US, UK, and globally. Actual final scope may vary by ±10-15% depending on proprietary third-party APIs and unique algorithmic requirements.
Why hire a solo senior full-stack engineer instead of an agency?
Traditional software agencies in the US/UK charge $35,000–$80,000+ for an MVP because you pay for project managers, account executives, and office overhead. Working directly with me gives you senior-level architectural execution (Next.js, PostgreSQL, AI) at 60–75% lower cost with 3x faster delivery.
What ongoing costs should I expect after launch?
A modern Next.js + Neon PostgreSQL + Vercel stack typically costs under $20–$50/month in cloud infrastructure for the first 5,000 users. If you use OpenAI/Claude LLM APIs, inference costs range from $0.001 to $0.02 per user session depending on token volume.
Do I get full ownership of the intellectual property (IP)?
Yes, 100%. You own the GitHub repository, database schemas, Figma files, and all deployment pipelines under standard work-for-hire terms with zero licensing royalties.
Ready to turn your product idea into a working reality?
Let's get on a 20-minute technical discovery call. We will review your architecture, refine the scope, and plan a rapid launch timeline.