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POST
/
open-api
/
v1
/
cardholder
/
apply
curl --request POST \
  --url https://sandbox-openplatform.keysecure.io/open-api/v1/cardholder/apply \
  --header 'Content-Type: application/json' \
  --header 'Api-Key: your_api_key' \
  --header 'Timestamp: 1716307200000' \
  --header 'Access-Token: your_access_token' \
  --data '{
    "cardholder_no": "",
    "cardholder_unique_no": "MERCHANT_USER_001",
    "sumsub_share_token": "your_sumsub_share_token"
  }'

{
  "code": 0,
  "msg": "Success",
  "data": {
    "cardholder_no": "",
    "cardholder_unique_no": ""
  }
}
Creates or updates a cardholder KYC authentication application.

​
Request Headers

​
Api-Key
string
required
apiKey (merchant credential, bound to IP whitelist)
​
Timestamp
string
required
Unix timestamp in milliseconds. The deviation from the server time must be within 60 seconds, and future timestamps are not accepted.
​
Access-Token
string
required
Login token (required for all interfaces except Get Token).
​
Content-Type
string
default:"application/json"
Fixed to application/json

​
Request Body

​
cardholder_no
string
Cardholder order number (required when updating authentication).
​
cardholder_unique_no
string
required
Merchant-side unique cardholder number.
​
sumsub_share_token
string
required
Sumsub shareToken.
  • Create new: Do not pass cardholder_no; provide cardholder_unique_no + sumsub_share_token.
  • Update authentication: Pass cardholder_no, and cardholder_unique_no must match the record on the platform.

​
Response Parameters

​
code
number
Response status code. 0 indicates success.
​
msg
string
Response message.
​
data
object
Response data.
curl --request POST \
  --url https://sandbox-openplatform.keysecure.io/open-api/v1/cardholder/apply \
  --header 'Content-Type: application/json' \
  --header 'Api-Key: your_api_key' \
  --header 'Timestamp: 1716307200000' \
  --header 'Access-Token: your_access_token' \
  --data '{
    "cardholder_no": "",
    "cardholder_unique_no": "MERCHANT_USER_001",
    "sumsub_share_token": "your_sumsub_share_token"
  }'

{
  "code": 0,
  "msg": "Success",
  "data": {
    "cardholder_no": "",
    "cardholder_unique_no": ""
  }
}