Request pre-signed URLs for 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 '{}'

Response Example

201 - Example 1

{
    "url": "string",
    "fields": {}
}

Modified at 2025-12-12 19:24:03

Finalise corporate onboarding submission

AddOnboardingDocumentsRequest