...
Certain actions in Synapse require additional steps, such as certification or validation. Explore the different Synapse user account types /wiki/spaces/DOCS/pages/2007072795 to learn more about which account type you need.
...
See /wiki/spaces/DOCS/pages/1985446156 for more information on configuring Synapse clients using an access token.
API Key
Synapse also currently supports a legacy API key that can be used in place of a password, however API key support is considered deprecated in favor of personal access tokens.
Should you need it, you can find your API key through the user icon in the top right corner of the web client, selecting Profile and Settings. Your Synapse API key is available in the box furthest to the bottom of Settings and can be made visible with Show API Key.
Deactivating Your Account
All user activity on Synapse is recorded for auditing purposes. So, although they can be updated, Synapse accounts cannot be deleted. All of your public activities are and will remain publicly viewable. All of your activities within private projects are and will remain viewable to the people within that project. If you wish to deactivate your account, please contact us.
Related Articles
User Types, /wiki/spaces/DOCS/pages/1985904796
...