{"uid":"cap_c2i5d43oyfymkI3u8ePK1","slug":"uk-house-price-index-by-postcode-0ab0f0b0","name":"UK House Price Index by Postcode","description":"UK public data for AI agents, one origin, pay per call: a one-call postcode report, street crime, live flood warnings, property sales and the House Price Index, food hygiene ratings, MP lookup, NHS GPs, pharmacies and dentists, Companies House checks and search, UK working days and bank holidays, and the cheapest card machine provider. Official sources, attribution in every answer, free preview in every 402, failed requests never charged.","url":"https://uk-data.agent-fee-check.workers.dev/hpi?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":["postcode"],"properties":{"postcode":{"type":"string","description":"Full postcode in England or Wales, e.g. LU6 3BS"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"area":"Central Bedfordshire","index":102.5,"month":"2026-07","summary":"Average house price in Central Bedfordshire was £356,758 in 2026-07, up 1.2% on a year earlier.","postcode":"LU6 3BS","by_type_gbp":{"detached":609817,"terraced":299825,"semi_detached":377901,"flat_maisonette":173264},"retrieved_at":"2026-10-11T18:16:45.187Z","annual_change_pct":1.2,"average_price_gbp":356758,"monthly_change_pct":0.6,"first_time_buyer_gbp":300772}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.003","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.003/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_hOYlstQ77zZN7uftQR2mc","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.003","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns the latest House Price Index data for a UK postcode, including average prices, annual/monthly changes, and breakdown by property type.","exampleAgentPrompt":"What's the latest House Price Index data for postcode SW1A 2AA — give me the average price, the annual change, and a breakdown by property type?","exampleUseCases":[{"title":"First-time buyer area research","prompt":"I'm thinking of buying my first home near LU6 3BS — what's the average price for a flat or terraced house there, and have prices been going up or down over the past year?"},{"title":"Estate agent property valuation context","prompt":"Can you pull the latest House Price Index for postcode M1 1AE so I can see what detached and semi-detached homes are selling for on average and what the annual price trend looks like?"},{"title":"Property investment comparison","prompt":"What does the HPI say about house prices in EH1 1YZ right now? I want to know the current average, how much prices moved this month, and the year-on-year change."}],"resultDescription":"A JSON object containing the area name, latest HPI index value, report month, average house price in GBP, annual and monthly percentage changes, prices broken down by property type (detached, semi-detached, terraced, flat/maisonette), first-time buyer average price, and a plain-English summary sentence. Also includes the queried postcode and retrieval timestamp.","failureModes":["Invalid or malformed postcode returns an error — postcode must be a valid full England or Wales postcode","Scottish or Northern Irish postcodes may not be covered by HM Land Registry HPI data","Very new or rural postcodes with few transactions may have no index data available","Payment failure returns a 402 with a free preview of the response before charging","Network or upstream HM Land Registry unavailability returns a service error"],"whenToPreferThis":"Choose this endpoint when you need authoritative, official UK House Price Index data tied to a specific postcode, including property-type breakdowns and first-time buyer figures. Prefer it over generic property search APIs when the user needs HPI index values, percentage changes, or official Land Registry sourced averages rather than individual listing prices.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-27T12:37:47.287Z","isFirstParty":false,"canonicalSlug":"uk-house-price-index-by-postcode-0ab0f0b0"}