The Symphony Key Manager API's sole purpose is to authenticate a bot or API caller with the Key Manager.
In order to access Agent API endpoints, bots must be authenticated with the Pod and the Key Manager. To authenticate with the Key Manager, a bot must call the Key Manager Authenticate endpoint.
If successful, the Key Manager API returns a Key Manager Token which is valid for up to two weeks. This Key Manager Token must be passed along with every subsequent Agent API request in order to encrypt/decrypt messages on the Agent server. You can read more about Authentication and Token management here: