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ApplyLivenessToken

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Last updated: 2026-03-03 13:51:16

1. API Description

Domain name for API request: faceid.intl.tencentcloudapi.com.

This API is used to apply for a token before calling the liveness detection service each time. This token is required for initiating the verification process and getting the result after the verification is completed.

A maximum of 20 requests can be initiated per second for this API.

We recommend you to use API Explorer

Try it

API Explorer provides a range of capabilities, including online call, signature authentication, SDK code generation, and API quick search. It enables you to view the request, response, and auto-generated examples.

2. Input Parameters

The following request parameter list only provides API request parameters and some common parameters. For the complete common parameter list, see Common Request Parameters.

Parameter Name	Required	Type	Description
Action	Yes	String	Common Params. The value used for this API: ApplyLivenessToken.
Version	Yes	String	Common Params. The value used for this API: 2018-03-01.
Region	Yes	String	Common Params. For more information, please see the list of regions supported by the product.
SecureLevel	No	String	Enumerated value. Valid values: `1`, `2`, `3`, and `4`. Their meanings are as follows: 1 - silent 2 - blinking 3 - light 4 - blinking + light (default)

3. Output Parameters

Parameter Name	Type	Description
SdkToken	String	The token used to identify an SDK-based verification process. It is valid for 10 minutes and can be used to get the verification result after the process is completed.
RequestId	String	The unique request ID, generated by the server, will be returned for every request (if the request fails to reach the server for other reasons, the request will not obtain a RequestId). RequestId is required for locating a problem.

4. Example

Example1 Applying for a token

Input Example

POST / HTTP/1.1
Host: faceid.intl.tencentcloudapi.com
Content-Type: application/json
X-TC-Action: ApplyLivenessToken
<Common request parameters>

{
    "SecureLevel": "1"
}

Output Example

{
    "Response": {
        "SdkToken": "A561B769-C347-4724-A69A-6C3B3483E107",
        "RequestId": "d73c0c05-f7ff-419c-84cb-0756303b1934"
    }
}

5. Developer Resources

SDK

TencentCloud API 3.0 integrates SDKs that support various programming languages to make it easier for you to call APIs.

Command Line Interface

Tencent Cloud CLI 3.0

6. Error Code

The following only lists the error codes related to the API business logic. For other error codes, see Common Error Codes.

Error Code	Description
InternalError	Internal error.
InternalError.UnKnown	Unknown internal error.
InvalidParameter	Invalid parameter.
InvalidParameterValue	Incorrect parameter value.

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