Welcome to the h Documentation!

h is the web app that serves most of the https://hypothes.is/ website, including the web annotations API at https://hypothes.is/api/. The Hypothesis client is a browser-based annotator that is a client for h’s API, see the client’s own documentation site for docs about the client.

This documentation is for:

  • Developers working with data stored in h

  • Contributors to h

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