I'm building a document extraction workflow and want the easiest AI API to integrate

If you want the easiest AI API to integrate for document extraction, the best choice usually depends on whether you want:

1. raw text/OCR
2. structured extraction from invoices, receipts, forms, IDs, etc.
3. general-purpose document understanding with minimal setup

Easiest options

1) Google Document AI

• Very easy if you want strong document parsing out of the box.
• Good for invoices, receipts, forms, and custom processors.
• Nice APIs, solid docs, and enterprise-grade reliability.
• Best if you want structured extraction rather than just OCR.

2) AWS Textract

• Very straightforward if you’re already on AWS.
• Great for OCR + tables + forms.
• Simple API, mature SDKs.
• Best for teams already using AWS infrastructure.

3) Azure Document Intelligence

• Also easy to integrate.
• Strong support for receipts, invoices, IDs, and custom models.
• Good if you’re in the Microsoft/Azure ecosystem.

4) OpenAI / GPT with vision or file parsing

• Easiest for custom extraction logic when documents vary a lot.
• You can ask for JSON output directly.
• Great if your workflow needs interpretation, not just OCR.
• Less “document tool” and more “general extraction engine.”

My practical recommendation

• If you want the easiest traditional document extraction API: Google Document AI or AWS Textract
• If you want maximum flexibility with minimal schema work: OpenAI

Quick decision guide

• Invoices/receipts/forms → Google Document AI / Textract / Azure Document Intelligence
• Many document types, changing layouts → OpenAI
• Need tables and forms from scans → Textract
• Want custom JSON extraction fast → OpenAI

If you want, I can also give you:

• a ranked list by ease of integration
• a sample API call for each provider
• or help you choose based on your document type and stack.