Document AI APIs let you add document ai-powered capabilities without building from scratch. Every entry below is profiled with trust signals — pricing model, authentication requirements, CORS support, rate limits, and live uptime checks — so you can compare options and pick production-safe choices instead of guessing from a link list.
| API | Pricing | Auth | CORS | Health | |
|---|---|---|---|---|---|
| ABBYY Vantage API Enterprise intelligent document processing with configurable skills. | Unknown | Unknown | Yes | Profile | |
| Adobe PDF Services API PDF creation, extraction, conversion, OCR, and document workflow APIs. | Freemium | API Key | Yes | Profile | |
| Affinda API Resume and document parsing with high-accuracy field models. | Unknown | Unknown | Yes | Profile | |
| Docparser API Template-based PDF and invoice extraction for ops teams. | Unknown | Unknown | Yes | Profile | |
| Docsumo API Finance-document automation: invoices, lending and operations extraction. | Unknown | Unknown | Yes | Profile | |
| Klippa OCR API Receipt and document capture with verification workflows. | Unknown | Unknown | Yes | Profile | |
| LandingAI Agentic Extraction Layout-aware extraction with visual grounding and auditability. | Unknown | Unknown | Yes | Profile | |
| LlamaParse API Agentic document parsing with semantic reconstruction for RAG. | Unknown | Unknown | Yes | Profile | |
| Mathpix API Math and STEM document OCR: equations, tables and handwriting. | Unknown | Unknown | Yes | Profile | |
| Mindee OCR API Receipt, invoice and ID parsing with prebuilt and custom models. | Unknown | Unknown | Yes | Profile | |
| Mistral OCR API Document-to-markdown OCR optimized for RAG ingestion. | Unknown | Unknown | Yes | Profile | |
| Nanonets OCR API OCR and document data extraction APIs for invoices, IDs, receipts, and custom models. | Freemium | API Key | Yes | Profile | |
| Nutrient Processor API PDF-to-markdown and document operations with source traceability. | Unknown | Unknown | Yes | Profile | |
| PDF.co API PDF generation, conversion, extraction, barcode, and document processing APIs. | Freemium | API Key | Yes | Profile | |
| Reducto API RAG-grade document parsing with accurate tables and structure. | Unknown | Unknown | Yes | Profile | |
| Rossum API Document automation API for intelligent data capture and validation. | Freemium | API Key | Yes | Profile | |
| UiPath Document Understanding RPA-grade document extraction for straight-through processing. | Unknown | Unknown | Yes | Profile | |
| Unstract API LLM-powered extraction (LLMWhisperer) for complex layouts, OSS core. | Unknown | Unknown | Yes | Profile | |
| Unstructured API Document partitioning and enrichment APIs for PDFs, Office files, HTML, images, and RAG pipelines. | Freemium | API Key | Yes | Profile | |
| Veryfi OCR API OCR and document extraction API for receipts, invoices, checks, and financial documents. | Freemium | API Key | Yes | Profile |
Start with pricing and auth: free tiers and no-auth APIs are fastest to prototype with. Then check CORS if your app calls the API from the browser, and health before you commit — a great document ai API that's been down for a week will block your launch. Each profile below shows all of these signals plus rate limits where documented.