FeeSentinel for HR: Real‑time Paywall & Invoice Guard
9/10
Demand Score
Finance and HR leaders get bill shock from per‑event charges (off‑cycle runs, W‑2 reprints, background checks, e‑verify, premium support) that blow budgets with no in‑app visibility.
9/10
Blue Ocean
Competition Level
$500-5k
Price/Month
Predicted customer spend
10 days
Time to MVP
Difficulty: Moderate
The Problem
Inflexible User and Staff Management
Competitor Landscape
- Vendr
- Tropic
- Sastrify
- Zylo
- Productiv
- Vendor native usage dashboards
Must-Have Features for MVP
Contract and SOW parser that extracts price tables and triggers
Usage signal collectors (API, webhook, browser extension)
Point‑of‑use fee warnings and approval gates
Real‑time month‑end bill forecast dashboard
Invoice-to-usage reconciliation and dispute packet generator
Crowd-sourced price card library with anomaly detection
Slack/Teams approval flows and budget thresholds
Role-based policies to auto-allow low-risk charges
⚠️ Potential Challenges
- Vendor UI/API changes may break event mapping
- Legal/ToS considerations for UI overlay or scraping
- Securing accurate, current price Exhibit data
- User friction from added pre‑authorization prompts
Risk Level: Low
🎯 Keys to Success
- >95% accuracy mapping actions to fee rules
- Documented cost avoidance/recovery within first billing cycle
- 5‑minute deploy via browser extension + API keys
- Broad vendor coverage across top HR tools
Ready to Build This?
This moderate-difficulty project could be your next micro-SaaS success.