> For the complete documentation index, see [llms.txt](https://bdcatalyst.gitbook.io/biodata-catalyst-documentation/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://bdcatalyst.gitbook.io/biodata-catalyst-documentation/written-documentation/explore-available-data/gen3-discovering-data/profile.md). # Profile ## Profile Page The Profile page contains two sections: API keys and Project access. ![Profile page with an active key and access to projects](/files/-M-QT4OWJg7J2X04Zbbb) ### API key(s) To download large amounts of data, an API key will be required as a part of the [gen3-client](https://gen3.org/resources/user/gen3-client/). To create a key on your local machine, click **Create API key**, which will activate the following pop-up window: ![API key creation pop-up window](/files/-M-QUWrsezm4uF8t3ua4) Click **Download json** to save the credential file to your local machine. After completion, a new entry will appear in the API key(s) section of the Profile page. It will display the API key `key_id` and the expiration date (one month after the key creation). The user should delete the key after it has expired. If for any reason a user feels that their API key has been compromised, the key should be deleted before subsequently creating a new one. ### Project Access This section of the Profile page lists the projects and the methods of access for the data within in the *BDC-Gen3* system. If you do not see access to a specific study, check that you have been granted access within [dbGaP](https://www.ncbi.nlm.nih.gov/gap/). If access has been granted for over a week, contact the BDC Help Desk: