Hi take a look at this.
IPSK Authentication without RADIUS - Cisco Meraki
API
iPSK name used by a client can also be obtained via API using
GET /api/v1/networks/{networkId}/clients with a query parameter pskGroup for iPSK name.
Please refer to https://developer.cisco.com/ for more information.
I am not a Cisco Meraki employee. My suggestions are based on documentation of Meraki best practices and day-to-day experience.
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