Which External API gives me Access to the EoX API?

[SteveJennings75007]

Like several posts I've read in the Community, I have this problem:

raise HTTPError(http_error_msg, response=self)
requests.exceptions.HTTPError: 403 Client Error: Forbidden for url: https://api.cisco.com/supporttools/eox/rest/5/EOXByProductID/1/WS-C3750X-48PF-S,C3KX-PWR-1100WAC

And several posts say "you need to register your app to get client and secret keys." I know that part . . .but which API do you register for? Here's the list: None of these appear to be EoX related.

• EXTERNAL APIS
  • CCW Catalog
  • CCW Catalog - POE
  • CCW Catalog - UAT
  • CCW Config
  • CCW Config - POE
  • CCW Config - UAT
  • CCW Estimate API
  • CCW Estimate API - POE
  • CCW Estimate API - UAT
  • CCW Order API
  • CCW Order API - POE
  • CCW Order API - UAT
  • CCW Quote
  • CCW Quote - POE
  • CCW Quote API - UAT
  • CCWR Contract Administration API
  • CCWR Contract Administration POE API
  • CCWR Quote API
  • CCWR Quote API - POE
  • CPRSYNC API
  • CR Customer Manage
  • CR Customer Manage-POE
  • CR Customer Search
  • CR Customer Search - POE
  • CR Customer Validation
  • CR Customer Validation-POE
  • Cisco On Demand CHIDS API
  • Cisco PSIRT openVuln API
  • Cisco PSIRT openVuln API - POE
  • Doc Central Webservices API
  • DocCentral Webservices API - POE
  • DocExchange Caching API
  • DocExchange Webservices API
  • E2OpenRESTInbound API - POE
  • Entitlement Framework API - DR
  • Hello API
  • HelloCommerce API
  • Platform-API POE
  • CR AddressTypeAHead API
  • MCE-Externalization-Bucket API POE
  • Assets and Entitlements API

[SteveJennings75007]

It's a Cisco API, and refers to End of Life, Support, Security Support, etc.