The Bloomberg Desktop API is a suite of Excel tools that allows you to query Bloomberg's underlying data for further custom analysis. Use the DAPI command to access the API's support documentation, including video tutorials.
Data downloaded using the API should not, under any circumstances, be removed from the Bloomberg terminal (i.e. local PC). Only your analysis of the data can be removed. Review the "Desktop API Guidelines" document (via the DAPI command) to ensure that you are in full compliance with Bloomberg's rules. If these restrictions do not match your use case, you must use another data source such as Datastream or WRDS. If you have questions about whether you are in compliance, please email the Business Library team using our form.
Data accessed through the Bloomberg terminals, including the Excel API, is subject to daily and monthly download limits. The limits are associated with each terminal, not your personal account, and cannot be reset. Be judicious when downloading so as to avoid reaching the limits, especially during busy times of year when Bloomberg assignments are due.
How do I tell if a terminal has reached its data limit?
There is no direct way to view how much of the data limit has been used at a terminal. When a terminal's data limit has been reached, you will receive error messages in Excel or no results. In some cases, an API query may come back incomplete. In the terminal software, data in spreadsheets may also not display.
How do I report when the data limit has been reached?
Alert our staff by emailing us by using the Ask A Librarian Form and selecting "Business" as your subject. We will place a sign on the terminal.
When does the data limit reset?
The daily data limit resets at midnight and the monthly data limit resets at midnight on the last day of the month. These limits are controlled by Bloomberg: library staff cannot reset the limit and Bloomberg staff will not reset the limit under any circumstances.
How can I reduce or optimize my data consumption to prevent reaching the limit?
This terminal is maxed out and I still need to do my Bloomberg assignment. What should I do?
At Bobst Library in-person terminals, every time a user logs on to Windows they must install the Excel add-in on their account. Watch a video of the installation steps here (requires flash). (Virtual access will prompt you to install the Excel add-in at the login screen.)
To confirm if non-library terminals have the Excel add-in, open Excel. If the add-in is installed, there will be a "Bloomberg" tab.
Use the XLTP command to access hundreds of visually appealing Excel templates that allow you to quickly perform custom analysis. Templates are organized by market sector, role (trader, analyst, broker, etc.), and region. Templates require the Bloomberg Excel API to display and update data.