FinTech
CarfaxGenie: Full CARFAX Vehicle History Reports at $7.50, No Dealer Account Needed
Vehicle history report API built for CarfaxGenie: CARFAX reports at $7.50, no dealer account needed, discounted credit bundles, shared VIN cache included.
Node.js
PostgreSQL
Python
Tailwind CSS
TypeScript
$7.50
Cost Per Full Vehicle History Report
100%
CARFAX Branding Automatically Stripped Per Report
3
Flexible Purchase Options (Single, Credits, Bulk Bundles)
The Problem
No Affordable Vehicle History Report API Existed Outside Expensive Dealer Accounts
No affordable vehicle history report API exists for individual buyers outside of CARFAX's own portal. CARFAX Vehicle History Reports are an essential tool for used car buyers, but direct consumer access is expensive, and CARFAX's dealer API is not publicly accessible to individual buyers. Consumers had no affordable, programmatic way to get the same dealer-grade report data without paying premium prices through CARFAX's consumer portal. Building a viable resale platform required solving three things simultaneously: authenticated dealer API access, a cost-effective shared report cache, and a clean consumer billing experience without friction.
Our Solution
Authenticated Dealer API Access, DOM Branding Removal, and a Shared VIN Cache
CarfaxGenie runs on Laravel 10, with Blade and Tailwind CSS for the frontend and MySQL for the database. The core VIN lookup flow makes an authenticated request to CARFAX's internal JSON dealer endpoint with a full Chrome browser-spoofing header set and a dealer Bearer JWT. The returned report HTML is loaded into PHP's DOMDocument, a JavaScript cleanup script removes CARFAX branding elements, and the processed report is saved to disk. The VinList cache table means the second request for any VIN is served directly from disk, no API call, no cost. The credit system tracks balances with a two-table ledger for financial events and per-action debit/credit records. Stripe Checkout Sessions handle both single-report purchases (including guest checkout) and bulk credit package purchases.
Architecture
Laravel 10 (PHP) with Blade template engine. Tailwind CSS + Vite frontend build. MySQL database with users, vin_lists, user_vins, transaction_histories, credit_histories, and packages tables. Laravel Breeze for session auth. Laravel Sanctum for API tokens. Stripe Checkout Sessions + webhook handler. CARFAX Dealer API integration. PHP DOMDocument for server-side HTML manipulation. Static HTML file serving for processed reports.
The Result
Dealer-Grade CARFAX Reports at $7.50: No Account, No Subscription, No Friction
CarfaxGenie now gives private car buyers and independent inspectors access to dealer-grade CARFAX Vehicle History Reports at $7.50 per report, with no dealer account, no CARFAX subscription, and no upfront commitment beyond a single-report purchase. The shared VIN cache reduces the effective cost per report for the operator with every successive lookup: once any report is fetched, all future requests for that VIN are served from disk at zero API cost. The guest checkout flow removed the account-creation barrier entirely for one-off buyers, while the credit package system gave high-volume users like car dealers and independent inspectors a cost-effective bulk purchase option. CARFAX branding is automatically stripped server-side, so buyers receive a clean, unbranded report identical in detail to what CARFAX's own portal serves. If your business needs a similar vehicle history or VIN lookup API integrated into a billing platform, our team can scope it the same way.
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