Meekan - Connecting the world's calendars
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.
FreeBusy Scheduling Assistant - Coordinate meetings 10x faster from Skype, Slack, Echo
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
x.ai - x.ai is a tool to schedule meetings for you and your team.
PDFShift - Convert any HTML documents to high-fidelity PDF using a single POST request