API to automate Merchant Domains verification

My Merchant Domains' SSL certificate expires every 3 months, that means I need to verify Apple Pay Merchant Domains every 3 months at least.

Need API(s) to automate the verification process after my domain's SSL certificate updates:

1. API to download the apple-developer-merchantid-domain-association file to be uploaded to my domain.
2. API to verify the domain.