Discovers directories in the Caspio account along with their field schemas in a single call. Directories are identity and authentication services that manage app user accounts, supporting Caspio-native authentication as well as SAML-based federation (inbound from providers like Okta or Active Directory, and outbound to external systems). A Caspio account can have multiple directories for different user types (e.g., one for employees, another for customers). Returns each matching directory's id (needed for query_directory_users), name, and field definitions. Use nameFilter to search for a specific directory, or omit it to list all directories.
ConnectorOAuth