RentCast provides real estate data, rental estimates, property valuation tools, and API access for investors, developers, and property professionals that need structured housing market information. Its public help center article explains a free affiliate program with a separate affiliate portal, unique referral links, and commission on every subscription payment from referred RentCast Pro users. The article states affiliates receive 30% recurring commission on ongoing payments. It fits real estate software reviewers, proptech newsletters, API developers, investor educators, and SaaS publishers that cover data products for property analysis.