Transparent call weights.
No credit calculators.

Up and running in 5 minutes

No sales call. No annual contract. Sign up, grab your free API key, and make your first call.

1. 1

   Create a free account

   Sign up at homedata.co.uk/register — name, email, org name. API key provisioned automatically. No credit card.

2. 2

   Find a UPRN — free, no key needed

   Address search is always open. On PropertyData, this costs 10 credits per lookup.

   cURL

   curl "https://api.homedata.co.uk/api/address/find/?q=10+Downing+Street"
   # → { "suggestions": [{ "uprn": 100023336956, "address": "10 Downing Street..." }] }

3. 3

   Query any endpoint — same cost, every time

   Python

   import requests
   
   KEY = "your_api_key"
   HEADERS = {"Authorization": f"Api-Key {KEY}"}
   BASE = "https://api.homedata.co.uk"
   uprn = 100023336956
   
   # Each of these costs exactly 1 call
   prop  = requests.get(f"{BASE}/api/properties/{uprn}/", headers=HEADERS).json()
   epc   = requests.get(f"{BASE}/api/epc/", headers=HEADERS, params={"uprn": uprn}).json()
   flood = requests.get(f"{BASE}/api/risks/flood/", headers=HEADERS, params={"uprn": uprn}).json()
   comps = requests.get(f"{BASE}/api/comparables/{uprn}/", headers=HEADERS).json()
   
   # Total: 4 calls. Budget: known in advance.
   print(f"{prop['full_address']} — EPC: {epc.get('current_energy_efficiency', 'N/A')}")
   print(f"Flood risk: {flood['results'][0]['label']}")
   print(f"Comparables found: {comps['total_results']}")