The World Wide Web Consortium (W3C) is an international community that works to develop Web standards. The Markup Validation service is offered by the W3C to check the markup validity of Web documents in HTML, XHTML, SMIL, MathML, and more. Developers can use the API to access the functionality of the service and integrate it with their own applications. The API uses SOAP protocol and responses are formatted in XML.
The following is a list of sample source code snippets that matched your search term. Source code snippets are chunks of source code that were found out on the Web that you can cut and paste into your own source code. Whereas most of the sample source code we've curated for our directory is for consuming APIs, we occasionally find something interesting on the API provider side of things. If you know of some sample source code that would be of interest to the ProgrammableWeb community, we'd like to know about it. Be sure to check our guidelines for making contributions to ProgrammableWeb.