# Market History
data.everef.net/market-history/ (opens new window) contains daily archive files of market history data. They are produced by the Scrape Market History command.
To import history into a database, using the Import Market History command is recommended.
Due to the nature of the ESI market history endpoint, it's possible for new data to be discovered after the daily archive has been created. This means that data in the archive may not be complete, but also that archives for past days may be updated in-place. If you download these archives and insert them into your own database, and want them to stay fully up-to-date, it's important to be aware of this.
For custom download implementations, totals.json (opens new window) contains the total number of market history records for each day. Compare this with numbers in your database and update accordingly. For full downloads of all the files, please see downloading datasets.