I should add that behind the scenes LMFDB really is a (MongoDB) database, there&#x27;s an API that @hasch (here on HN) wrote, so that data can be recovered in JSON format, etc.    To give some sense of what is in there, this <a href="http:&#x2F;&#x2F;johncremona.github.io&#x2F;ecdata&#x2F;" rel="nofollow">http:&#x2F;&#x2F;johncremona.github.io&#x2F;ecdata&#x2F;</a> is just a tiny bit of what is in LMFDB.