Recommendations For Inexpensive But Reliable Nationwide Real Estate Data Sources (sold + Active Comps)

Looking for affordable, reliable nationwide data for comps. Need both:

• Sold properties (6–12 months history: price, date, address, beds, baths, sqft, lot size, year built, type).
• Active listings (list price, DOM, beds/baths, sqft, property type, location).
• Nationwide coverage preferred (not just one MLS).
• Property details (beds, baths, sqft, lot size, year built, assessed value, taxes).
• API access so it can plug into an app.

Constraints:

• Budget: under $200/month.
• Not an agent → no direct MLS access.
• Needs to be consistent + credible for trend analysis.

If you’ve used a provider that balances accuracy, cost, and coverage, I’d love your recommendations.