I’m using an Identity Engine org and can successfully call the /api/v1/devices endpoint with an SSWS token.
However, I need to use this API with a client credentials flow, and the okta.devices.read scope is not available in the Okta API Scopes list for my API service integration app.
Could someone from Okta please enable OAuth support for Devices API in my developer org?
No, the feature is not available in Okta Classic and is only available in Identity Engine. Identity Engine is when support for FastPass was added, and the /devices endpoint is used to manage devices registered for Okta FastPass.
There is no way to use this scope/endpoint/feature in Okta Classic