Here’s how we’d structure the full build-out of the calculator webapp, Whop embedding, and GPT assistant with tool-calling:
🔧 Project Fee (One-Time): $3,500
Covers:
Fully functional version of the calculator tool Embedded GPT assistant with tool-calling (in-site chat interface) Secure frontend/backend implementation User authentication system (account creation + login) Email/download report template Full QA testing, refinement, and live deployment 🔄 Monthly Maintenance & R&D: $750/mo $500/mo
(First month is free — discounted rate applied)
Covers:
Priority fixes, updates, and tested upgrades Error monitoring + user tracking Continuous QA testing + system health Lead gen tracking from visitors (we can use tools to turn visitors into qualified leads) Immediate access to new models/tools as we test them—improving the AI’s accuracy and user experience Minor feature additions/upgrades without needing new proposals or contracts Peace of mind - we stay on call so you're never stuck waiting if something breaks or needs to evolve. 📊 API Usage
The GPT assistant runs on OpenAI’s API, which charges per usage. We’ll bill based on actual use (OpenAI base cost + 25% to cover overhead).
First $100/mo in usage credits included Most sessions will cost just a few cents ($0.02–$0.05) You’ll get a monthly breakdown so everything stays transparent OpenAI pricing reference:
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Pricing