post https://secure.nmi.com/api/v4/merchants
Never Use Real API Keys
Never use real API Keys when testing. The gateway allows Partners to create Test Merchant Accounts. Testing should always use keys from the Test Accounts and never keys from a Standard Account.
Usage
This step simply creates the merchant account, getting their basic information into the gateway. After this step, you can add processors and value-added services before sending the welcome email to the merchant.Note - you can board merchants under an existing sub-affiliate by providing a parentAffiliateId in the create request. This will add the merchant under the specified affiliate instead of the account making the request.