ZipMarketData is a REST API delivering US real estate market data — median prices, rental yields, cash flow projections, and affordability indices — for any US ZIP code. This guide walks through authentication, your first request, and parsing responses.

Step 1: Get Your API Key

ZipMarketData is available on RapidAPI. Sign up at the pricing page, subscribe to a plan, and copy your x-rapidapi-key from your RapidAPI dashboard. The free tier includes 50 requests/month — enough to build and test an integration.

Step 2: Your First Request

curl -X GET "https://zipmarketdata.com/market-stats?zip_code=10001" \ -H "x-rapidapi-proxy-secret: YOUR_KEY"

Step 3: Understanding the Response

{ "zip_code": "10001", "data_date": "2026-07", "median_sale_price": 895000, "median_list_price": 925000, "median_days_on_market": 38, "active_listings": 124, "yoy_price_change": 0.021, "market_temperature": "Warm" }

Step 4: Explore All Endpoints

Explore the interactive Swagger docs at /docs to see all available endpoints, parameters, and response schemas without writing any code.

Rate Limits and Best Practices

  • Rate limit: 120 requests/minute burst
  • Cache responses locally for 24 hours — data updates once daily
  • Use /health to check data freshness before bulk processing
  • Handle 429 responses with exponential backoff