---
title: "Configuring Cloud API Properties to Support the API Proxy"
canonical: "https://docs.infoblox.com/space/NAIG/37454222/Configuring%20Cloud%20API%20Properties%20to%20Support%20the%20API%20Proxy"
format: markdown
---
You complete AWS API Proxy support in NIOS by defining the API endpoint assignments for the API Proxy to the FQDNs for each AWS service endpoint. Do the following:

1. From the **Cloud** tab, click **Grid** **Cloud** **API** **Properties** from the Toolbar. Configuration done for the Grid only applies to the current Grid Master; it is not inherited by other Cloud Platform Appliances.
2. In the *Grid* *Cloud* *API* *Properties* editor, select the **API** **Proxy** tab, and then complete the following:
  - **Port**: Enter **8787** as the API Proxy port number. You can change the default value, but it must match the value for your AWS VPC configuration.
  - **API** **Endpoint** **Mapping**: Enter the complete FQDN for the API Proxy in the **API** **Proxy** **FQDN** field. You use the matching CNAME alias from the zone configuration as the prefix for the FQDN, with the hostname for the API Proxy. Example: `ec2-us-west-1.api-proxy``. `Enter the complete AWS endpoint FQDN in the **AWS** **Endpoint** **FQDN** field. Example: `ec2.us-west-1.amazonaws.com`.
  - Enter any other **API** **Endpoint** **Mapping** instances if you want to use the API Proxy with other AWS service endpoints. You must have a matching CNAME alias for each mapping.
3. Select the **Enable** **the** **API** **Proxy** **for** **AWS** **on** **the** **Grid** **Master** checkbox.
4. Save the configuration.