CompreFace - CompreFace is a free face recognition service from Exadel that can be easily integrated into any system using simple REST API.

PDFCrowd - Pdfcrowd is a Web/HTML to PDF online service. Convert HTML to PDF online in the browser or in your PHP, Python, Ruby, .NET, Java apps via the REST API.

Google Vision AI - Cloud Vision API provides a comprehensive set of capabilities including object detection, ocr, explicit content, face, logo, and landmark detection.

DocRaptor - As the only API powered by the Prince HTML-to-PDF engine, DocRaptor provides the best support for complex PDFs with powerful support for headers, page breaks, page numbers, flexbox, watermarks, accessible PDFs, and much more

Datature Portal - Portal is the fastest way to inspect your neural networks

PDFShift - Convert any HTML documents to high-fidelity PDF using a single POST request