How can I fetch the on-demand cost of a particular services using its subscriptionId?

Hello Prateek Srivastava,

Thank you for reaching out to the Microsoft Q&A forum. 

When investigated we see that you can pull “on-demand” usage and cost details directly from Azure’s Cost Management or Consumption APIs—no need to guess service rates from the Pricing Calculator. Here are two common approaches:

Consumption UsageDetails API (good for Pay-As-You-Go & Visual Studio subscriptions) • Endpoint GET https://management.azure.com/subscriptions/{subscriptionId}/providers/Microsoft.Consumption/usageDetails?api-version=2019-10-01

• Filter by time range and service name/meter category. For example:

$filter=properties/usageStart ge '2023-07-01' 

  and properties/usageEnd le '2023-07-02' 

  and properties/meterCategory eq 'Virtual Machines'

• Response items include:

properties.usageQuantity (units consumed)

properties.pretaxCost (cost in USD)

properties.usageStart / usageEnd (timestamps you can group by hour) • Consume page-by-page in your code via the Azure SDK’s ConsumptionManagementClient.

Cost Management Query API (supports EA, MCA, CSP, PAYG; returns hourly/daily aggregates)

• Endpoint POST https://management.azure.com/subscriptions/{subscriptionId}/providers/Microsoft.CostManagement/query?api-version=2021-10-01

• Request body example (hourly granularity, filtered to your service):

{
  "type": "Usage",
  "timeframe": "Custom",
  "timePeriod": { "from": "2023-07-01T00:00:00Z", "to": "2023-07-02T00:00:00Z" },
  "dataset": {
    "granularity": "Hourly",
    "filter": {
      "dimensions": {
        "name": "ServiceName",
        "operator": "In",
        "values": [ "Virtual Machines" ]
      }
    },
    "aggregation": {
      "totalCost":      { "name": "Cost",          "function": "Sum" },
      "totalUsage":     { "name": "UsageQuantity", "function": "Sum" }
    }
  }
}

• The response table has columns like UsageQuantity and Cost for each hourly slice.

You can implement either in your preferred language by using:

• Azure.CostManagement.CostManagementClient (for Cost Management API)
• Microsoft.Azure.Management.Consumption.ConsumptionManagementClient (for UsageDetails API)

Both will give you usageQuantity + costInUsd so you can sum up hourly data into a monthly total.

Let me know if you need any more details—like code samples in a specific language or details about filtering by meter, dealing with paging, or distinguishing Actual vs Amortized cost.

— References

• Consumption Usage Details API examples https://learn.microsoft.com/azure/cost-management-billing/automate/get-usage-details-legacy-customer#example-consumption-usage-details-api-requests

• Cost Management “Query” API (generateCostDetailsReport) https://learn.microsoft.com/azure/cost-management-billing/manage/review-subscription-billing?wt.mc_id=knowledgesearch_inproduct_azure-cxp-community-insider

• Pricing calculator & general pricing docs https://azure.microsoft.com/pricing/calculator/ https://docs.microsoft.com/azure/billing/billing-understand-your-bill https://docs.microsoft.com/azure/azure-monitor/platform/usage-estimated-costs

There is no dedicated Azure client that can return on-demand cost for a particular service using only the subscriptionId outside of the existing pricing/management APIs.

Available Java management clients that work with subscription IDs (for example BillingManagementClient, ConsumptionManagementClient, QuotaManagementClient, ServiceFabricManagementClient, and SubscriptionsClient) expose subscription metadata, usage, quota, or specific resource operations, but not a direct "on-demand price for a service with given specs" endpoint.

For example:

• ConsumptionManagementClient.getSubscriptionId() and related consumption APIs deal with usage and cost data already incurred, not list/on-demand prices.
• BillingManagementClient.getSubscriptionId() and UsageAggregation.subscriptionId() expose billing/usage context, not pricing for arbitrary configurations.
• SubscriptionsClient.get(String subscriptionId) returns subscription details, not pricing.

To obtain on-demand cost for a specific configuration, the supported approach remains to use Azure pricing and cost/consumption APIs or the portal-based pricing calculators. No alternative client in the provided SDK references exposes a direct on-demand pricing lookup by subscriptionId and service specification.

References:

• BillingManagementClient Interface
• ConsumptionManagementClient Interface
• QuotaManagementClient Interface
• PriceSheetsClient Interface
• ServiceFabricManagementClient Interface
• UsageAggregation Interface
• SubscriptionsClient Interface