v1
latestOpenAPI 3.1.0Proprietary2026-07-2464170247.4 KBOnboarding V2
Upload Controller Document
Upload a document for a business controller.
put/v2/accounts/{main_account_id}/businesses/{sub_account_id}/controllers/{controller_id}/documents/{document_type}
Path parameters
main_account_idstring required
Main account id in the form BZ-XXXX-XXXX.
sub_account_idstring required
Business child account ID
controller_idstring required
Controller (related party) id, as returned in the controllers[].id field of the Initiate Business Account API.
document_type'ID_FRONT' | 'ID_BACK' | 'POA' required
Controller-level business onboarding document type.
Controller document type
Headers
Content-Typestring required
Document MIME type
Content-Dispositionstring required
Attachment filename header
Response
Document uploaded successfully.