I'm passing parameters in the query but they're being ignored

Check that you are passing the API key in the parameters. Some parameters can only be used by partners that have had their KYB approved.

You can find out more details about our parameters here Query Parameters

To submit your KYB use the below link to verify your business and enable your API key for Production https://share.hsforms.com/1TaZ3f1XMQhSTXd1aotPllg45oa1