The API for
Real Estate
Data.

Build powerful applications with our unified REST API. Instant entity resolution, full historical tax data, and no rate limits.

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POST /v1/properties/search
curl -X POST https://api.quoindata.com/v1/properties/search \
  -H "Authorization: Bearer sk_live_..." \
  -H "Content-Type: application/json" \
  -d '{
    "address": "4504 MacArthur Blvd NW",
    "include": ["tax_history", "true_owner", "liens"]
  }'

// 200 OK
{
  "data": {
    "property_id": "prop_88291A",
    "ssl": "1356 0861",
    "true_owner": {
      "entity_name": "4504 MACARTHUR BLVD NW LLC",
      "beneficial_owner": "John Doe",
      "confidence_score": 0.99
    },
    "assessments": {
      "fy2026_total": 1403000,
      "tax_class": "1A"
    }
  }
}