---
title: "Register SP certificate"
slug: "post-sp-certificate"
updated: 2026-09-17T10:05:38Z
published: 2026-09-17T10:05:38Z
canonical: "api.ncloud-docs.com/post-sp-certificate"
---

> ## 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.

# Register SP certificate

Available in Classic and VPC

Register an external SAML SP certificate.

## Request

This section describes the request format. The method and URI are as follows:

| Method | URI |
| --- | --- |
| POST | /api/v1/tenant/saml-idp/sp-certificates |

### Request headers

For information about the headers common to all Ncloud Single Sign-On APIs, see [Ncloud Single Sign-On request headers](/docs/en/single-sign-on-overview#%EC%9A%94%EC%B2%AD%ED%97%A4%EB%8D%94).

### Request body

You can include the following data in the body of your request:

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `certificateExpireDays` | Integer | Required | Certificate expiration date (day) - `180` \| `270` \| `365` \| `730` \| `1095` \| `1460` \| `1825` \| `3650` |
| `keySize` | Integer | Required | Certificate key size (bit) - `1024` \| `2048` |
| `algorithm` | String | Required | Hash algorithm used to sign SAML requests - `SHA-1` \| `SHA-256` - `SHA-1`: SHA-1 hash algorithm - `SHA-256`: SHA-256 hash algorithm |

### Request example

The request example is as follows:

```
curl --location --request POST 'https://sso.apigw.ntruss.com/api/v1/tenant/saml-idp/sp-certificates' \
--header 'x-ncp-apigw-timestamp: {Timestamp}' \
--header 'x-ncp-iam-access-key: {Access Key}' \
--header 'x-ncp-apigw-signature-v2: {API Gateway Signature}' \
--data '{
    "certificateExpireDays" : 3650,
    "keySize": 2048,
    "algorithm": "SHA-256"
}'
```

## Response

This section describes the response format.

### Response body

The response body includes the following data:

| Field | Type | Required | Description |
| --- | --- | --- | --- |
| `id` | String | - | SP certificate's unique identifier |
| `success` | Boolean | - | API processing result |

### Response status codes

For information about the HTTP status codes common to all Ncloud Single Sign-On APIs, see [Ncloud Single Sign-On response status codes](/docs/en/single-sign-on-overview#%EC%9D%91%EB%8B%B5%EC%83%81%ED%83%9C%EC%BD%94%EB%93%9C).

### Response example

The response example is as follows:

```
{
    "id": "ba0def04-****-****-****-ff0b962016f7",
    "success": true
}
```