See Saved Queries on how to create a saved query. The URL can be found on the Execute Query screen.
Use Access Token to Call Cinchy APIs
https://<Cinchy Web URL>/API/MyDomain/MyQuery
To access any Cinchy Saved Query API, pass the access token received from the Bearer Token Request in the Authorization header, prefixed by "Bearer".
If your query contains parameters, you can pass them in through the URL.
%40 is the URL encoded version of @, if you are passing them in as parameters you will need to include the %40 in front of your parameter name.