---
title: "Cost and Usage overview"
slug: "platform-costandusage"
updated: 2026-09-17T09:35:51Z
published: 2026-09-17T09:35:51Z
canonical: "api.ncloud-docs.com/platform-costandusage"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://api.ncloud-docs.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Cost and Usage overview

## Overview

API that inquires usage / amount of contract used by Naver Cloud platform. Billing API is provided in RESTful form. It is made by calling the HTTP-style GET/POST method.

## Common Settings

### API URL

```
GET or POST
https://billingapi.apigw.ntruss.com/billing/v1/
```

### Request headers

| Header | Description |
| --- | --- |
| x-ncp-apigw-timestamp | It shows the time elapsed since January 1, 1970 00:00:00 UTC in millisecond. If the time differs from that of the API Gateway server by 5 minutes or more, then the request is considered invalid. |
| x-ncp-iam-access-key | API Key issued by Naver Cloud Platform or AccessKey issued by IAM. |
| x-ncp-apigw-signature-v2 | Signature used to encrypt the body of the example above with SecretKey that maps with AccessKey. The HMAC encryption algorithm is HmacSHA256. |

## Operations

### Common

| API name | Description |
| --- | --- |
| [getContractSummaryList](/docs/en/platform-costandusage-getcontractsummarylist) | Look up the user contract summary list. |
| [getCostRelationCodeList](/docs/en/platform-costandusage-getcostrelationcodelist) | Check the list of cost-related codes. |
| [getContractUsageList](/docs/en/platform-costandusage-getcontractusagelist) | Look up the list of contract usage. |
| [getContractUsageListByDaily](/docs/en/platform-costandusage-getcontractusagelistbydaily) | Look up the list of contract usage. |
| [getContractDemandCostList](/docs/en/platform-costandusage-getcontractdemandcostlist) | Look up the list of contract claim costs. |
| [getProductDemandCostList](/docs/en/platform-costandusage-getproductdemandcostlist) | Look up the list of product billing costs. |
| [getDemandCostList](/docs/en/platform-costandusage-getdemandcostlist) | Look up the list of billing costs. |