Access to the Book Traces API requires a secret token. Fill out this form and one will be emailed to the address you provide. Include this token an the BOOKTRACES_API_KEY header of all API requests. For Example:
curl -H "BOOKTRACES_API_KEY: YOUR_KEY" https://booktraces.lib.virginia.edu/api/detail/E-03078
NOTE: Each subsequent request will regenerate the secret token. The result will be emailed to the supplied address.