Setting up Freddie Mac AIM Check
This guide walks you through the one-time setup with Freddie Mac and Ocrolus to use Freddie Mac's Asset and Income Modeler (AIM) Check. Once setup is complete, see the Freddie Mac AIM Check integration guide to run an AIM Check.
What you’ll needA Freddie Mac–approved Seller/Servicer account and your Seller/Servicer number, authority to submit the Freddie Mac Tools Request Form for your organization, and an active Ocrolus account.
One-time setup
Complete these steps once to connect Ocrolus to your Freddie Mac account and enable AIM Check for your organization.
Step 1: Confirm your Freddie Mac Seller/Servicer number
You must be a Freddie Mac–approved Seller/Servicer. Locate your Seller/Servicer number, you'll provide it to Ocrolus in Step 3. If you don't have one, register with Freddie Mac first.
Step 2: Register Ocrolus using the Freddie Mac Tools Request Form
Visit the Freddie Mac Tools Request Form and select AIM API Relationship. Fill out your company information, then enter Ocrolus in the Integration Vendor Name field and [email protected] in the Integration Vendor Email field. This authorizes Freddie Mac to accept AIM Check requests submitted on your behalf by Ocrolus.
Registering typically requires an authorized representative with provisioning rights for Loan Product Advisor. The form requires third-party cookies. Freddie Mac recommends Microsoft Edge or Mozilla Firefox. If you can't access the form, contact your organization's Freddie Mac administrator.

Select AIM API Relationship on the Freddie Mac Tools Request Form. Fill out your company info then designate Ocrolus as the vendor name and [email protected] as vendor email.
Step 3: Provide your Seller number to Ocrolus
Send your Freddie Mac Seller/Servicer number to your Ocrolus contact or Implementation team. Ocrolus configures it for your organization internally, so there’s nothing for you to enter in the Dashboard. You’ll be notified once Freddie Mac is available as a loan program on the Wage earner tab.
Troubleshooting
| If you see… | What it means | What to do |
|---|---|---|
| Freddie Mac isn't available as a loan program | Your Seller number isn't configured yet, or the integration isn't enabled. | Confirm you completed the one-time setup and that Ocrolus has enabled your organization. |
| This lender is not yet authorized with Freddie Mac to submit through Ocrolus. Complete the seller (Submitting Party) relationship with Freddie Mac, then recalculate. | The Tools Request Form registration isn't complete, or the Seller number Ocrolus has doesn't match Freddie Mac's. | Confirm the registration with Freddie Mac and your Seller number with your Ocrolus contact. |
Next step
Once Ocrolus confirms Freddie Mac is enabled for your organization, see the Freddie Mac AIM Check integration guide to run your first AIM Check.
Updated about 15 hours ago