Need to figure out auth.
Click on API from the Connector Local UI -> ? (Help Menu)  on the top right corner-> API or Go to Connector Swagger interface directly using  http://ConnectorIP/occm/api-doc/
Click on User Manager Operations
Click on auth : Authentication operations
Click on POST /auth/login and then on Expand Operations
Click on Model Schema
Click inside the box (Click to set as parameter value) under Model Schema that displays
{
"email": "string",
"password": "string"
}
On the Value field where Model Schema is populated edit the string to provide following fields
{
"email": "user@company.com",
"password": "xxxxxxxxxx"
}

NOTE: e-mail is the Cloud Central Auth0 e-mail id used to login to the Cloud Manager Connector and password is plain-text
Click on Try it out!
Verify the login is successful from the Response Code which should be 204


start at http://<occm_ip>/occm/api/api-docs/

This page looks like:
{"apiVersion":"3.2.0","swaggerVersion":"1.2","apis":[{"path":"/tenants","description":"Tenant operations"},{"path":"/azure-vsa:working-environments"},{"path":"/azure-vsa:aggregates"},{"path":"/replication:metadata","description":"Replication metadata operations"},{"path":"/occm:saas-mp-service"},{"path":"/azure-ha:discovery"},{"path":"/occm:setup-portal","description":"Cloud Manager Initial Setup operations using NetApp Cloud Central"},{"path":"/gcp-vsa:working-environments"},{"path":"/aws-ha:volumes"},{"path":"/occm:tenancy-service"},{"path":"/fsx:working-environments"},{"path":"/occm:encryption:certificate"},{"path":"/monitoring","description":"Monitoring Operations"},{"path":"/aws-ha:encryption"},{"path":"/onprem:volumes"},{"path":"/azure-ha:volumes"},{"path":"/gcp-ha:volumes"},{"path":"/gcp-ha:aggregates"},{"path":"/vsa:volumes"},{"path":"/accounts","description":"Account operations"},{"path":"/azure-vsa:volumes"},{"path":"/vsa:discovery"},{"path":"/aws-ha:discovery"},{"path":"/occm:encryption:csr"},{"path":"/gcp-ha:working-environments"},{"path":"/working-environments","description":"Common system operations"},{"path":"/occm:encryption:key-managers-ca-certificates","description":"Key manager certificate authority (CA) certificates operations"},{"path":"/azure-ha:metadata"},{"path":"/azure-ha:working-environments"},{"path":"/gcp-vsa:aggregates"},{"path":"/azure-ha:aggregates"},{"path":"/replication","description":"Replication operations"},{"path":"/flexcache","description":"FlexCache Operations"},{"path":"/vsa:metadata"},{"path":"/cloud-compliance","description":"Cloud Compliance Operations"},{"path":"/gcp-vsa:metadata"},{"path":"/azure-vsa:metadata"},{"path":"/occm:config","description":"Cloud Manager Configuration"},{"path":"/gcp-vsa:volumes"},{"path":"/gcp-ha:metadata"},{"path":"/occm:asup"},{"path":"/azure-vsa:discovery"},{"path":"/occm:system"},{"path":"/occm:setup","description":"Cloud Manager Initial Setup"},{"path":"/vsa:working-environments"},{"path":"/audit","description":"Audit operations"},{"path":"/aws-ha:aggregates"},{"path":"/onprem:aggregates"},{"path":"/fsx:volumes"},{"path":"/user-mng:users"},{"path":"/occm:encryption:key-managers"},{"path":"/user-mng:auth","description":"Authentication operations"},{"path":"/vsa:aggregates"},{"path":"/aws-ha:metadata"},{"path":"/onprem:working-environments"},{"path":"/aws-ha:working-environments"},{"path":"/onprem:metadata"},{"path":"/occm:key-store"},{"path":"/gcp-ha:discovery"},{"path":"/vsa:encryption"},{"path":"/gcp-vsa:discovery"}]}

For each path (like /tenants):
Build the url http://<occm_ip>/occm/api/api-docs/tenants

Download it in tenants.json
{"apiVersion":"3.2.0","swaggerVersion":"1.2","basePath":"http://<occm_ip>/occm/api","resourcePath":"/tenants","produces":["application/json"],"consumes":["application/json"],"apis":[{"path":"/tenants/{tenantId}","operations":[{"method":"GET","summary":"<b>Retrieves a tenant.</b>.","notes":"","type":"TenantResponse","nickname":"tenantById","parameters":[{"name":"fields","required":false,"type":"string","paramType":"query","allowMultiple":false},{"name":"tenantId","description":"Public Id of tenant","required":true,"type":"string","paramType":"path","allowMultiple":false}]},{"method":"DELETE","summary":"<b>Deletes an existing tenant. It is not possible to delete a tenant over which systems exist.</b>.","notes":"","type":"void","nickname":"deleteTenant","parameters":[{"name":"tenantId","description":"Public Id of the tenant to be deleted","required":true,"type":"string","paramType":"path","allowMultiple":false}]},{"method":"PUT","summary":"<b>Updates an existing tenant.</b>.","notes":"","type":"TenantResponse","nickname":"updateTenant","parameters":[{"name":"tenantId","description":"Public Id of tenant","required":true,"type":"string","paramType":"path","allowMultiple":false},{"name":"body","description":"Tenant update request","required":true,"type":"UpdateTenantRequest","paramType":"body","allowMultiple":false}]}]},{"path":"/tenants/{tenantId}/nss-keys","operations":[{"method":"PUT","summary":"<b>Links an existing tenant to a NetApp Support Site account.</b>.","notes":"","type":"TenantResponse","nickname":"setTenantNssKeys","parameters":[{"name":"tenantId","description":"Public Id of the tenant to be updated","required":true,"type":"string","paramType":"path","allowMultiple":false},{"name":"body","required":true,"type":"SetNssKeysRequest","paramType":"body","allowMultiple":false}]}]},{"path":"/tenants","operations":[{"method":"POST","summary":"<b>Creates a new tenant.</b>.","notes":"","type":"TenantResponse","nickname":"addTenant","parameters":[{"name":"body","required":true,"type":"AddTenantRequest","paramType":"body","allowMultiple":false}]},{"method":"GET","summary":"<b>Retrieves tenants that are visible to the current user.</b>.","notes":"","type":"array","items":{"$ref":"TenantResponse"},"nickname":"list","parameters":[{"name":"fields","required":false,"type":"string","paramType":"query","allowMultiple":false}]}]}],"models":{"String500":{"id":"String500","required":["_1","validatesWith"],"properties":{"_1":{"type":"string"},"validatesWith":{"$ref":"PatternMessage"}}},"Pattern":{"id":"Pattern","properties":{"pattern":{"type":"string"},"flags":{"type":"integer","format":"int32"}}},"WorkingEnvironmentsInformation":{"id":"WorkingEnvironmentsInformation","required":["regionsCount","totalReservedSize","workingEnvironmentsCount"],"properties":{"regionsCount":{"type":"integer","format":"int32","description":"Number of regions for which systems exist over this tenant"},"totalReservedSize":{"$ref":"Capacity","description":"Total reserved size of all systems created over this tenant"},"workingEnvironmentsCount":{"type":"integer","format":"int32","description":"Number of systems created over this tenant"}}},"String255":{"id":"String255","required":["_1","validatesWith"],"properties":{"_1":{"type":"string"},"validatesWith":{"$ref":"PatternMessage"}}},"PatternMessage":{"id":"PatternMessage","properties":{"regex":{"$ref":"Regex"},"message":{"type":"string"}}},"Expand":{"id":"Expand","description":"","properties":{"name":{"type":"string"},"expands":{"type":"array","items":{"$ref":"Expand"}}}},"AddTenantRequest":{"id":"AddTenantRequest","description":"","required":["name"],"properties":{"name":{"type":"string","description":"Tenant name"},"description":{"type":"string","description":"Tenant description"},"costCenter":{"type":"string","description":"Tenant cost center"},"nssKeys":{"$ref":"SetNssKeysRequest","description":"NSS keys"}}},"TenantResponse":{"id":"TenantResponse","description":"","required":["name","publicId"],"properties":{"name":{"type":"string"},"publicId":{"type":"string"},"workingEnvironmentsInformation":{"$ref":"WorkingEnvironmentsInformation"}}},"Regex":{"id":"Regex","properties":{"pattern":{"$ref":"Pattern"},"scala$util$matching$Regex$$groupNames":{"type":"array","items":{"type":"string"}}}},"TenantName":{"id":"TenantName","required":["_1","validatesWith"],"properties":{"_1":{"type":"string"},"validatesWith":{"$ref":"PatternMessage"}}},"SetNssKeysRequest":{"id":"SetNssKeysRequest","description":"","properties":{"nssUserName":{"type":"string","description":"NSS username"},"nssPassword":{"type":"string","description":"NSS password"}}},"Expands":{"id":"Expands","description":"","properties":{"raw":{"type":"string"},"expands":{"type":"array","items":{"$ref":"Expand"}}}},"Capacity":{"id":"Capacity","description":"","required":["size","unit"],"properties":{"size":{"type":"number","format":"double","description":"Size"},"unit":{"type":"string","description":"Unit","enum":["Byte"," KB"," MB"," GB"," TB"]}}},"UpdateTenantRequest":{"id":"UpdateTenantRequest","description":"","required":["name"],"properties":{"name":{"type":"string","description":"Tenant name"},"description":{"type":"string","description":"Tenant description"},"costCenter":{"type":"string","description":"Tenant cost center"}}}}}
