The Carterstack blog

Practical, no-fluff guides on OCR, receipt & invoice parsing, image-to-text, and shipping real products on AI APIs — from a team running them on its own hardware.

OCR & Documents

Best document parsing APIs for developers in 2026

Real list prices for Textract, Azure, Google Document AI, LlamaParse, Unstructured, Reducto and Mistral — the cost math at 100,000 pages a month, and an honest look at where each one genuinely wins.

July 29, 2026 · 7 min read
OCR & Documents

Best invoice parsing API in 2026 (pricing compared)

An honest look at what invoice parsing actually costs — Textract, Azure, Google Document AI, Mindee, Veryfi and Nanonets on real list prices, plus the cost math at 20,000 invoices a month.

July 8, 2026 · 8 min read
Recruiting & HR Tech

Best resume parser APIs in 2026: pricing & features compared

What actually matters in a resume/CV parsing API — schema depth, scanned-resume support, candidate-PII handling, and how the per-page pricing really shakes out at volume.

June 22, 2026 · 8 min read
OCR & Documents

Best OCR APIs in 2026: image & document to text (a developer's comparison)

What actually matters in an OCR API — real-world image accuracy, handwriting, languages, pricing at scale, and the layout-aware Markdown trick most comparisons miss.

June 19, 2026 · 8 min read
eCommerce & AI

Generate product listings that sell with AI (Etsy, Amazon, eBay, Shopify)

Turn a product photo into ready-to-publish, SEO-optimized listing copy at scale — titles, descriptions, benefit bullets, marketplace-tuned tags, and alt-text — with code examples.

June 19, 2026 · 7 min read
OCR & Documents

Best Receipt & Invoice OCR APIs in 2026: a developer's comparison

What actually matters when you turn a receipt photo into structured JSON — accuracy, line-item parsing, pricing at scale, and the trap of per-token billing — with a side-by-side look at the options.

June 19, 2026 · 7 min read