You can easily update prices in a standard database with prices from a third-party service by importing price information or by categories.

Here are some links that can help you get started:
Updating standard database prices by category (SQL)
Updating standard database prices using a pricing service
Updating database prices using a price update file (SQL)
Formatting a price updating file (SQL)
Repricing the estimate using standard database prices (SQL)
Update Database from Estimate (SQL)
Price Update by Price Code window (SQL)
Adjusting the estimate prices by a percentage (SQL)