Endpoint
POST /v3/onboarding/master_accounts/list
Authentication and target
A platform-scoped credential associated with a platform tenant is required. Account-targeting headers do not replace this credential policy. Use the standard HMAC-SHA256 request-signing headers. Do not send X-ISPB or X-Account-Number. This platform-only route rejects account-targeting headers.Request body
Success data
master_accounts[] plus page with page, page_size, total, and total_pages.
Behavior and validation
This is a synchronous, tenant-scoped filtered list. It does not use account-targeting selectors.Errors
Every call can fail for missing or invalid signature headers, an expired timestamp, nonce replay, an invalid body hash or signature, insufficient permission, or a downstream service error. Endpoint-specific errors include:authentication_requiredorpermission_deniedwhen platform tenant context is missing or invalid.