Market commercial market
GET /v1/market/commercial-marketThe commercial market for a sector and a place: the repeat-sales CAPITAL index, the VOA rating-list RENT index, and the rated stock standing in the authority with its hereditament count, total and median rateable value.
Same call over MCP
Commercial capital and rent indices for a placecommercial_marketAuthenticate with an API key from the API & MCP Hub. The same call is available as an MCP tool at the same price.
Reference
What GET /v1/market/commercial-market returns
THE TWO INDICES ARE NOT COMPARABLE and must never be plotted on one axis or differenced. The capital index is quarterly and THIN — several quarters rest on single-digit sale pairs, n_pairs is on every point, and thin_periods names the recent ones you should not quote a move from. The rent index is keyed on VOA rating lists at their antecedent valuation dates, so it has four points in sixteen years and each is a revaluation of a constant sample, not a quarter.
Only 19 local authorities carry a capital series, ALL sector only, because a local sector cell is too thin to publish. Ask for one that has none and the NATIONAL series comes back labelled as national — check area.index_scope before describing it as local.
Rated stock is the 2026 list only, so it is a snapshot: RV change on appeal is not derivable per property. UK only.
Inputs
Before you call it
- sector
- Sectors follow the VOA classification (OFFICE, RETAIL, INDUSTRIAL_WAREHOUSE, HOTEL and so on). Omit the argument for all sectors; the response names the sectors published for an area when the one you asked for is not.
Request
Calling GET /v1/market/commercial-market
curl "https://api.marketcode.ai/v1/market/commercial-market" \
-H "Authorization: Bearer $MARKETCODE_API_KEY"Send your API key as a Bearer token. Every response carries credits_charged and credits_remaining.
Inputs
Parameters
| Name | In | Type | Required | Description |
|---|---|---|---|---|
| sector | Query | string | No | ALL (default) or a VOA sector: RETAIL, OFFICE, INDUSTRIAL_WAREHOUSE, … |
| lad_code | Query | string | No | LAD GSS code, for the rated stock counts |
| area_key | Query | string | No | A warehouse area id, for a local index where one is published |
Price and licence
What it costs, and where the data comes from
Market commercial market is free over MCP and over REST, and the two surfaces share one credit balance. Free calls need a signed-in account or an API key and appear in your usage, but they never touch your balance.
Credits are granted on sign-up and bought in packs; the pricing page lists every call.
Related
Endpoints used with Market commercial market
- Asking-price index (portal listings)Free
asking_price_index_seriesHedonic ASKING-PRICE index for one postcode district, local authority or Great Britain, from portal listings (Rightmove ~95%), 2022M01 = 100, with 80% bands and posterior standard errors, smoothed toward the parent geography.Same category - Asking-rent index (portal listings, ONS-validated)Free
asking_rent_index_seriesHedonic ASKING-RENT index for one postcode district, local authority or Great Britain, from portal lettings, 2022M01 = 100, with bands and SEs. This is the residential rent index; commercial_rent_index_series is the VOA one for commercial property.Same category - Commercial capital indexFree
commercial_index_seriesRepeat-sales CAPITAL index for UK commercial property, quarterly, 1995Q1 = 100.Same category - Commercial rent indexFree
commercial_rent_index_seriesCommercial RENT index from the VOA rating lists — FOUR points, one per list (2010 / 2017 / 2023 / 2026), each dated at that list's antecedent valuation date (2008-04-01, 2015-04-01, 2021-04-01, 2024-04-01), with the 2010 list = 100.Same category - Index forecast h1–h7 with bandsFree
market_forecastThe published house-price index forecast for a postcode district or local authority: the last SETTLED index point as the anchor, then up to seven forecast periods with `lo`/`hi` bands, plus the method and publication grain behind them. Seven is the horizon the index publishes — nothing beyond it is offered, and a forecast is a projection of the smoothed repeat-sales index, not a valuation of any property. UK only.Same category - House price index seriesFree
market_index_seriesThe published house-price INDEX for one postcode district or local authority: the level per month (base period = 100), the forecast tail flagged, and provenance saying how the index was built.Same category
FAQ
Questions about Market commercial market
How much does `commercial_market` cost?
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Market commercial market is free over MCP and over REST, and the two surfaces share one credit balance. Free calls need a signed-in account or an API key and appear in your usage, but they never touch your balance.
How do I authenticate?
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Send your API key as a Bearer token in the Authorization header. Keys are created in the API & MCP Hub, shown once and revocable. Every response carries the credits charged and your remaining balance.
Is there an MCP version?
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Yes. The commercial_market tool on the MarketCode MCP server is the same call at the same price, signed in with OAuth rather than a key, so Claude, ChatGPT, Codex and Cursor can run it in a conversation.
Where does the data come from?
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The answer is computed by MarketCode. Coverage is the UK.
Does `commercial_market` change anything?
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No. The tool is annotated read-only on the server, so it never writes to your data or ours and an assistant can call it without a confirmation step.
Try Market commercial market on a real address.
30-minute call. We'll provision a key and walk through the endpoint on your use case.