Category feed

We provide a JSON feed containing the entire PhilPapers taxonomy. To access this feed, use the following URL (insert your API ID and key):


[API_ID] and [API_KEY] should be replaced by your API user ID and your API Key, respectively. You can obtain those for free here.

Each entry in this list represents a category. The included fields are:

  • Name of the category
  • ID of the category
  • Comma-separated list of IDs of parents
  • IDs of the primary parent
Note that the root category (which has ID 1) is not included.

Article feeds

We can provide a JSON API for third parties to download all bibliographic data of limited subsets of our index and display them on their site under certain conditions. Contact us.