Universal Invoice OCR with Built-In Multi-Region
Tax Compliance
Extract line items, totals, and vendor data from PDFs & images in <800ms. Automatically validate Indian GSTIN (Luhn Mod-36), EU VAT, and UK VAT in the same single API call. Zero $500/mo enterprise minimum commitments.
Median Latency (p50)
Line Accuracy
Indian GST Coverage
Minimum Spend Floor
Test Extraction & Real-Time Tax Verification
Select a sample international invoice profile to inspect sub-second extraction, automatic line-item math cross-checks, and tax registry checksum validation.
Tata Consultancy Services Ltd
Tax ID: 27AAPFU0939F1ZV
INV-2026-IN-9812
Date: 2026-10-12
INR 59,000
Mathematically Reconciled| Line Description | HSN/SAC | Qty | Unit Price | Line Total |
|---|---|---|---|---|
| Enterprise Cloud Architecture Consulting | 998313 | 1 | INR 40,000 | INR 40,000 |
| Serverless Database Optimisation Sprint | 998314 | 1 | INR 10,000 | INR 10,000 |
| Subtotal: | INR 50,000 | |||
| Tax Breakdown: | + INR 9,000 | |||
| Grand Total: | INR 59,000 | |||
Engineered to Solve What Legacy OCR Breaks
We eliminated the four universal bottlenecks of document extraction: expensive enterprise minimums, broken line-item tables, missing tax checks, and serverless payload timeouts.
Luhn Mod-36 Tax Checksum
Full deterministic checksum validation across all 38 Indian State & UT jurisdictions. Detects OCR character confusions (e.g. '8' vs 'B') in <1ms before tax filing errors occur.
Single-Hop Unified Payload
Stop stitching together Mindee ($49/mo) and VATSense (€15/mo). Our single endpoint returns both parsed line items and verified statutory compliance in one unified RFC 9457 response.
Zero Overage Billing Shock
The #1 developer complaint on RapidAPI is surprise overage bills. We enforce strict hard caps on lead tiers, transparent per-call overage rates, and predictable credit-ledger top-ups.
OffscreenCanvas Downsampling
Eliminates Vercel's 4.5MB serverless payload limit. High-resolution 18MB camera photos are downsampled client-side to an 1800px boundary blob (~450KB) in <120ms before upload.
Enterprise Precision. Zero Minimum Contracts.
Unlike incumbents requiring $500/month minimum commitments, EvolveExpert gives you instant self-service micro-credit packs and transparent developer tiers.
Ideal for testing, small bookkeeping sprints, and freelancers.
- 50 Document & Invoice Scans (₹4.98/scan)
- Luhn Mod-36 GSTIN & Tax Verification
- Sub-second JSON Response
- Credits Valid for 12 Months
5x the scans for only 2.8x the price. Perfect for CA firms and businesses.
- 250 Document Scans (₹2.79/scan)
- Line-Item Table Extraction & Arithmetic Audit
- 38 Indian States + EU/UK VAT Verification
- Export to Excel / CSV / JSON
- Priority Processing Queue (<750ms)
High-throughput processing for accounting agencies and finance teams.
- 1,000 Document Scans (₹1.99/scan)
- Dedicated API Secret Key
- Full Multi-Region Compliance Suite
- Direct WhatsApp / Slack Developer Support
Frequently Asked Questions
How does EvolveExpert compare to Veryfi or Mindee?
Veryfi enforces a strict $500/month minimum commitment, and Mindee charges 1.5x credits for confidence scores with zero tax validation. EvolveExpert requires ₹0 / $0 minimum spend, offers self-service micro-credit packs from ₹249, and validates Indian GSTIN (Luhn Mod-36) and EU VAT in the exact same sub-second response.
How do credit packs and payments work?
Indian businesses can pay instantly via UPI QR, Google Pay, PhonePe, Cards, or NetBanking through Razorpay. Global developers can subscribe via RapidAPI Hub using international credit cards in USD ($). Purchased credits never expire for 12 months.
What is your refund policy if I am dissatisfied?
We offer a no-questions-asked 7-day refund guarantee for unutilized credit packs. In compliance with RBI guidelines, refunds are credited directly back to your original payment source within 5 to 7 business days.
Can I use EvolveExpert in a serverless environment (Next.js / AWS Lambda)?
Yes. Our client-side canvas downsampling scripts prevent the 4.5MB Vercel serverless payload barrier, and our median response latency is <800ms, well within standard 10-second serverless execution timeouts.
Ready to Automate Invoice Data Entry & Tax Compliance?
Start testing with 50 free requests today or unlock business volume packs in seconds.