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Business data · UK government open data

UK Public Data

Official UK statistics, open data and public contracts in Claude: ONS figures, house prices, data.gov.uk and UK tenders.

Reads UK government open data, all under the Open Government Licence. Statistics from the Office for National Statistics: inflation (CPI, CPIH, RPI), unemployment, employment, wages, vacancies, GDP, population, public sector debt and borrowing, retail sales and any of the ~60,000 ONS time series or filterable ONS datasets such as Census 2021 tables; average house prices for any UK region or council from HM Land Registry's UK House Price Index. The national open data portal data.gov.uk: search datasets by publisher and format, list their files and preview the first rows of CSV and JSON files. Public procurement from Contracts Finder and Find a Tender: awarded contracts with buyer, supplier and value, open tenders with deadlines, full notices, and spend summaries per buyer or supplier. No credentials needed.

What you can ask

What are the latest UK inflation, unemployment and wage growth figures, and when is the next release?Show me CPI inflation and average house prices in London month by month since January 2024.Which suppliers did Leeds City Council award the most money to in the last 12 months?Find open UK public tenders for software development worth over £100,000 with deadlines in the next month.Find datasets from the Department for Transport on road traffic and preview the local authority CSV.Which public contracts did the company with Companies House number 02652033 win recently?

Tools and prices

12 tools

ToolWhat it doesPer call
ukgov_popular_indicatorsCurated, live-verified UK headline indicators with their keys€0.002
ukgov_search_statisticsSearch ONS time series and filterable ONS datasets (English or Welsh)€0.002
ukgov_get_seriesOne series with period range or last N: ONS (CPI, jobs, GDP…) or Land Registry house prices€0.002
ukgov_latest_valuesLatest value, previous value and change for several indicators at once€0.002
ukgov_ons_datasetDimensions, options and observations of a filterable ONS dataset (Census 2021, CPIH by product…)€0.002
ukgov_search_datasetsSearch data.gov.uk by keywords, publisher and format, with sorting and paging€0.002
ukgov_get_datasetOne data.gov.uk dataset with licence, description and all its resources€0.002
ukgov_preview_resourceFirst rows of a CSV or JSON resource, streamed with size limits€0.005
ukgov_search_contractsAwarded contracts by keywords, buyer, supplier name or Companies House number, CPV, value and dates€0.005
ukgov_search_tendersOpen tenders with a future deadline from Contracts Finder and Find a Tender€0.005
ukgov_get_noticeOne Contracts Finder or Find a Tender notice in full: lots, awards, suppliers, documents€0.005
ukgov_spend_summaryTop suppliers of a buyer, or top buyers of a supplier, with totals over a period€0.02

Charged only when the call succeeds. Listing the tools is free.

How to connect

Add it to Claude

Create a OpenJack account and copy your connection key from your account.
In Claude, open Settings → Connectors → Add custom connector and paste https://uk-public-data.openjack.dev/mcp.
Click Connect. On the connect page enter your connection key and your UK government open data credentials. They are checked live and stored encrypted.

Requirements

FAQ

Where does the data come from?

Straight from the official public APIs: the ONS API (api.beta.ons.gov.uk), HM Land Registry's UK House Price Index, data.gov.uk (CKAN), Contracts Finder and Find a Tender. All publish under the Open Government Licence v3.0, which allows commercial reuse with attribution. Each data.gov.uk dataset states its own licence, shown by the connector. The connector is an independent client, not affiliated with the UK government.

Contracts Finder or Find a Tender?

Contracts Finder covers lower-value contracts since 2015 and has full keyword search, so it powers the default contract search and the spend summaries. Find a Tender carries higher-value notices and, since the Procurement Act 2023 (24 February 2025), most new notices. Its API only filters by date, so the connector scans the most recent notices (100 per page, newest first) and says how far back it got. Supplier search by Companies House number uses Find a Tender.

How large a file can be previewed?

The connector runs in a 128 MB Cloudflare Worker and never stores files. CSV files are streamed and reading stops after 2 MB, which is far more than the 100 rows a preview shows. JSON files up to 3 MB are parsed whole. Excel, ZIP, PDF and web pages are not opened; you get the download link instead.

How fresh are the statistics?

Every call reads the live source. Each series shows its last release date and the next scheduled ONS release. Labour market figures are 3-month averages labelled by their middle month, and house prices are published about two months after the reference month.

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