Structured data validator API
The Structured data validator API automates validation of semantic markup. The API allows you to use the Yandex validator functionality for various tasks, such as:
  • developing CMS plugins
  • automating structured data validation for large quantities of pages
  • extracting structured data from websites to use in your own projects
To transmit data to the API, you specify the HTML code or URL of the page. After completing validation, the API outputs the structured data extracted from the page in JSON format, along with the codes of any errors detected. The following syntaxes are currently supported: JSON-LD, RDFa, microdata, and microformats.
Getting started
  1. Read the terms of use.
  2. Use (change the language to English) to get an API key.
  3. Review the documentation.