The Fontsource API provides developers with access to information about the fonts supported by the Fontsource repository.

Note: Please sponsor the project if you use the API to support its development!


The Fontsource API is a read-only API that can be accessed by any HTTP client. An example URL that accepts a GET request is


200The request was successful
400The request was malformed
404The requested resource was not found
422The request was unprocessable
429The request was rate limited
500An internal server error occurred


  • We reserve the right to add more properties to objects, but will never change or remove them.
  • While the intention is not to throttle the API, we reserve the right to do so if necessary under fair use. The current hard limit is 2500 requests per 10 seconds but constant usage at this rate can result in a temporary ban.