Hi ,   This is the correct endpoint for outbound firewall rules on a MX : https://developer.cisco.com/meraki/api-v1/#!get-network-appliance-firewall-l-3-firewall-rules getNetworkApplianceFirewallL3FirewallRules   It would have been easier to state 'outbound' somewhere on that documentation  ... View more

Hi Aidan,   Don't worry, this is normal expected behaviour from the API as there is a limit of 1000 for entries returned. This has been discussed a few times on the community before so here are some links for you to gain a better understanding and find a solution:   https://community.meraki.com/t5/Developers-APIs/Limited-search/m-p/102863 https://community.meraki.com/t5/Developers-APIs/How-can-I-specify-a-time-range-using-GET-networks-networkId/m-p/60615 https://community.meraki.com/t5/Developers-APIs/Retrieving-more-than-2-pages-of-1000-clients-from-GET-networks/m-p/61495   Essentially, you will need to make a 2nd and 3rd API call and define a new starting point in order to obtain all of the networks. Hope this helps!   ... View more