Hey everyone! Happy to share the story behind this project. The inspiration came from a real pain point we kept hitting at MarsDevs — every time a client asked "how much will this cost?", the answer involved days of back-and-forth, spreadsheets, and guesswork. Senior engineers would spend hours breaking down requirements, researching tech stacks, and pulling together estimates that were still rough at best. We thought: what if AI agents could do the heavy lifting? The problem we wanted to solve was simple: turn a 10-minute conversation into a professional project estimate that would normally take a team days to produce. Not a generic calculator with sliders, but something that actually reasons about your specific requirements — the way an experienced solutions architect would. The approach evolved significantly as we built it. We started with a single monolithic LLM prompt, but quickly realized that project estimation has too many dimensions for one agent to handle well. So we broke it into 13 specialized agents — one for requirements structuring, others for dev cost, design cost, QA, infrastructure, compliance, tech stack recommendations, team composition, and timeline planning. LangGraph let us orchestrate these agents in parallel, which was a game-changer for both speed and quality. The biggest "aha" moment was when we decided to bake in AI-augmented productivity assumptions. Traditional estimators assume pre-AI development velocity. But teams today using Cursor, GitHub Copilot, and Claude are genuinely shipping 2x faster. Our estimates reflect that reality — smaller teams, faster timelines, lower costs — which makes them far more accurate for modern development shops. We also added regional rate cards for 6 global regions so clients can instantly see how costs differ between US, Western Europe, Eastern Europe, India, Latin America, and Southeast Asia. Would love to hear your feedback! Try it out and let us know if the estimates match your real-world experience. Built by - https://marsdevs.com/

Project Estimator

You can now know the cost of building your product!

You can now know the cost of building your product!