Deterministic B2B PDF invoice math auditor, 2-way bank reconciler & tax engine.
AuditCent.io is a deterministic B2B financial auditing workbench built with Next.js 15 and TypeScript. Unlike generic LLM wrappers that hallucinate numbers or charge per page, AuditCent verifies invoice arithmetic cent-by-cent and reconciles documents against bank statements with zero marginal cloud cost. Key Features: Deterministic PDF Extraction & Math Auditor: Verifies Qty × Unit Price = Subtotal and Subtotal + VAT - Withholding = Total. Flags line-item overcharges, duplicate SHA-256 files, and risky contract clauses. 2-Way Bank Reconciliation: Cross-checks uploaded PDFs against bank statement CSVs to detect unbacked "orphan charges" and calculate tax at risk. Tax Settlement & Multi-Company Portfolio: Generates official VAT/Withholding tax books and manages multiple client portfolios for accounting firms. Vendor Intelligence & Price Creep Radar: Aggregates spend by vendor and flags unit-price increases across consecutive invoices. Bilingual (ES/EN) & Swiss Financial UI: Instant language toggle and Dark Slate / Paper & Ink themes. Includes a private Admin Feedback Inbox powered by Netlify Blobs.
Next step: <p>The buyer can immediately scale B2B customer acquisition using the pre-configured automated outreach CSV and SMTP pipelines for accounting firms, activate paid pricing tiers via Stripe, or integrate the deterministic PDF math and bank reconciliation engine into an existing accounting suite.</p>
For sale
Asking price: $1,390 USD
What's included
Source code, All related data, All related design work
Complete Playwright E2E test suite (59/59 passing tests), technical handover documentation (README and HANDOVER PDFs), and automated outreach script pipelines.
Reason for selling
I am busy focusing on new core engineering architectures and no longer have the bandwidth to scale this product's commercial outreach.
Project metrics
Average Monthly Visitors: Pre-launch
Average Monthly Revenue: Pre-revenue
Average Monthly Downloads: Pre-launch / New project
Centro Command
- Restaurant ordering, KDS, dispatch & dine-in web app — source code + domain
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