Something here seems odd - you should absolutely see New Relic One created dashboards in the API list endpoint you linked to… In fact I created a dashboard within New Relic One just a few minutes ago and it is available in the List API (see API Response below)
"title": "New Relic One Dashboard",
"owner_email": "Ryans email address",
I can then take that Dashboard ID into the Dashboard Show endpoint which returns the full dashboard JSON.
Using that I can create the same dashboard in any account I have admin API access to.
I won’t go into all of the detail of the
grid_column_count, since my colleague Jeffrey did that over here. But that attribute should help you improve compatibility between the Dashboards API and New Relic One Dashboards (since Insights had a max column width of 3 widgets, and NR1 has 12)…
Something I’d like to double/triple check is you are using the right API key as suggested by Stefan? In New Relic One there’s less focus on accounts, as it’s one UI for everything in every account you have access to. So it’s possible the dashboard you are trying to get is not on the account you are using an API key from.
You can find the account that a dashboard belongs to by hitting the gear icon on the dashboard in New Relic One.
Can you confirm you have the right API key for that account?
If you do and you still don’t see the dashboard in the API, there may be a deeper issue to investigate.