---
title: "Subscribe to product"
slug: "apigateway-apikey-subscribe"
updated: 2026-09-17T09:35:44Z
published: 2026-09-17T09:35:44Z
canonical: "api.ncloud-docs.com/apigateway-apikey-subscribe"
---

> ## 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.

# Subscribe to product

Available in Classic and VPC

Subscribe to a product by associating an API key.

## Request

The following describes the request format for the endpoint. The request format is as follows:

| Method | URI |
| --- | --- |
| POST | /api/v1/api-keys/{api-key-id}/subscribe |

### Request headers

For information about the headers common to all API Gateway APIs, see [API Gateway request headers](/docs/en/ai-application-service-apigateway#%EC%9A%94%EC%B2%AD%ED%97%A4%EB%8D%94).

### Request path parameters

You can use the following path parameters with your request:

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `api-key-id` | String | Required | API key ID to associate with the product |

### Request syntax

The request syntax is as follows.

```
{
  "productId" : "productId"
}
```

### Request body

The following describes the request body.

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `productId` | String | Required | Product ID to associate the API key with |

### Request example

The following is a sample request.

```
curl -X POST 'https://apigateway.apigw.ntruss.com/api/v1/api-keys/{api-key-id}/subscribe' \
--header 'Content-Type: application/json' \
--header 'x-ncp-apigw-timestamp: {Timestamp}' \
--header 'x-ncp-iam-access-key: {Access Key}' \
--header 'x-ncp-apigw-signature-v2: {API Gateway Signature}' \
--data '{
  "productId": "*****xn0bk"
}'
```

## Response

The following describes the response format.

### Response status codes

For information about the HTTP status codes common to all API Gateway APIs, see [API Gateway response status codes](/docs/en/ai-application-service-apigateway#%EC%9D%91%EB%8B%B5%EC%83%81%ED%83%9C%EC%BD%94%EB%93%9C).