how to change permission of my facebook access token

I'm getting an access token with this link:

`https://graph.facebook.com/xxxxxxxxxx5198/accounts?access_token=xxxxxxxxxxxxxx98494a5sda5d1a9sd4a89d4189`

But this token permission is limited to facebook page management.

If I go to https://developers.facebook.com/tools/accesstoken/, I can get an access token with all scopes; this is what I'm looking for.

Should I get this access token server-side (in my node.js code), or do I need a call or request URL?