Data for property decisions

Carucate API

Use the public site to research a market. Use the Professional API to put its published, month-by-month aggregate evidence into your own products, dashboards and models.

Free research access

Explore on Carucate

For individuals researching places and testing whether Carucate is useful for their work.

✓Public market pages, comparisons and Top/Bottom 10 rankings
✓Published headline measures and evidence context
✓OpenAPI reference and safe example payloads
✓Signed-in beta users can save areas and use limited aggregate reports

Free access is for on-site research. It does not include an API key or programmatic data access.

Professional API

Build with the data

For surveyors, analysts, acquisition teams, developers and prop-tech products that need repeatable analysis.

✓Area summaries, monthly history and exact rolling 3/12-month series
✓Published sale counts, median price, £/m² and EPC coverage
✓Area evidence, rankings, bounded area search and usage endpoint
✓60 requests/minute and 10,000 requests/calendar month per key

All results remain publication-gated aggregates. No addresses, individual sales, certificates or postcode sectors are available through the API.

Example: rolling property-type history

A time series you can use in a model

Ask for London’s published detached-market history over rolling 12-month windows. Choose all market, one property type, or one floor-area band; each point reports the exact median, recorded sales and, where enough confident EPC-linked evidence exists, price per m² and coverage.

GET /api/v1/areas/region/E12000007/history?years=5&cadence=rolling_12m&property_type=D

{
  "area": { "type": "region", "code": "E12000007", "name": "London" },
  "period_years": 5,
  "cadence": "rolling_12m",
  "selection": { "property_type": "D", "size_band": "all" },
  "data_current_to": "2026-06-29T23:00:00.000Z",
  "series": [
    {
      "period": "2026-06-01",
      "median_price_pence": 52800000,
      "median_price_per_sqm_pence": 652632,
      "sale_count": 12345,
      "epc_floor_area_coverage": 0.50
    }
  ]
}

median_price_pence and median_price_per_sqm_pence are integers in pence. A null £/m² value means the evidence gate did not pass; it never means zero.

What you can call

✓Published area summary plus monthly and rolling history
✓All-market, one property type, or one floor-area band
✓Top/Bottom ten markets and source-scoped area evidence
✓Bounded published-area discovery and key usage

Data safeguards

✓Only areas and measures that meet Carucate publication gates
✓Property type and floor area cannot be combined; thin slices remain suppressed
✓Postcode sectors, addresses and individual sales are never available through the API
✓Use Retry-After after a rate-limit response

Professional endpoints

GET /api/v1/areas/search?q=London — find up to ten published areas.

GET /api/v1/areas/region/E12000007 — current market summary.

GET /api/v1/areas/region/E12000007/history?years=5&cadence=rolling_12m&property_type=D — filtered rolling history.

GET /api/v1/areas/local_authority/E06000052/evidence — source-scoped area evidence.

GET /api/v1/rankings?scope=local_authority&metric=psm&direction=top — Top/Bottom ten published markets.

For code generation and integration details, use the public OpenAPI 3.1 document.

Sign in to explore your access

Professional users can manage up to three server-side API keys here. Billing and upgrades are not self-service yet.