Request pre-signed URLs for Corporate onboarding document uploads

Testing Env

https://api.uat.sokin.com

POST

/corporates/documents

Use this API to request pre-signed upload URLs for supporting documents required during Corporate onboarding.

Typical documents include Certificates of Incorporation, Articles of Association, and other compliance-related files.

After submitting your request, the system will generate pre-signed URLs that must be used to upload the documents externally.

Each pre-signed URL:

Remains valid for 10 minutes

Allows one file upload (reusing it will overwrite the previous file)

Accepts files up to 20 MB in size

Accepted file formats include:

PDFs (application/pdf, pdf)

Images (image)

.zip for Due Diligence Bundle only

Request

Authorization

Bearer Token

Provide your bearer token in the

Authorization

header when making requests to protected resources.

Example:

Authorization: Bearer ********************

Header Params

Body Params application/jsonRequired

Examples

Responses

🟢201

application/json

List of pre-signed URLs for document upload.

Body

🟠400

🟠401

🟠403

🟠404

🟠422

🔴500

Request Example

Shell

JavaScript

Java

Swift

curl --location --request POST 'https://api.uat.sokin.com/corporates/documents' \
--header 'x-api-version;' \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data-raw '{
    "documentType": "string",
    "noOfDocuments": 1,
    "contentType": "string",
    "corporateExternalReference": "string",
    "otherDocumentType": "string"
}'

Response Example

201 - Example 1

{
    "message": "string",
    "data": {
        "urls": [
            {
                "url": "string",
                "fields": {}
            }
        ]
    }
}

Modified at 2026-01-09 10:07:14

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