{"uid":"cap__pwZeDeqbslQYX5Tn92Lf","slug":"halowerk-land-compare-built-up-change-2020-2021-470ecd39","name":"HALOWERK Land Compare – Built-Up Change 2020–2021","description":"Built-up-share change measured from ESA WorldCover 2020 v100 and 2021 v200 for the same 250 metre analysis area. The result is observed map-class change, not a causal claim.","url":"https://landvergleich.halowerk.com/v1/worldcover-2020-2021-built-up-change","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"latitude":{"type":"number","maximum":72.5,"minimum":34,"description":"WGS84 latitude inside the published European coverage."},"longitude":{"type":"number","maximum":40.5,"minimum":-31.5,"description":"WGS84 longitude inside the published European coverage."}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.008","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":"$0.008/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.008","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.008","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_dmACpBgDkuMS7scKGuxKn","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.008","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns the change in built-up land-cover share between ESA WorldCover 2020 and 2021 for a 250-metre analysis area at a given European coordinate.","exampleAgentPrompt":"Using ESA WorldCover data, check how much the built-up land share changed between 2020 and 2021 at latitude 48.8566, longitude 2.3522 — that's central Paris.","exampleUseCases":[{"title":"Urban expansion tracking for planning","prompt":"Can you check how much new built-up area appeared between 2020 and 2021 at latitude 52.52, longitude 13.405 in Berlin? I need to understand whether that neighbourhood saw development."},{"title":"Real estate site due diligence","prompt":"Before we assess this plot, can you pull the built-up share change from 2020 to 2021 for the coordinate 41.902, 12.496 in Rome — I want to know if the surrounding area got more urbanised."},{"title":"Environmental impact monitoring","prompt":"I'm monitoring land-use pressure near a protected zone. What was the change in built-up cover between the 2020 and 2021 ESA WorldCover maps at latitude 47.37, longitude 8.54 in Zurich?"}],"resultDescription":"A JSON response containing the built-up land-cover share (as a fraction or percentage) observed in ESA WorldCover 2020 and 2021 for a 250-metre area centred on the requested coordinate, along with the signed difference representing observed map-class change between the two editions.","failureModes":["Coordinate outside European coverage bounds (lat 34–72.5, lon -31.5–40.5) returns an error or empty result","Submitting non-numeric or malformed latitude/longitude values causes a validation error","Network or payment (x402) failure results in no response","Locations with identical classification in both years return a zero change value, which may be misread as missing data"],"whenToPreferThis":"Choose this endpoint when you need a point-specific, satellite-derived built-up land change value for a European location between the 2020 and 2021 ESA WorldCover releases at 250-metre resolution. It is the right choice when you want map-class change (not modelled or forecast data) and are working within the European geographic extent. Prefer it over general land-cover endpoints when the question is specifically about urban or built-up area, and over the two-coordinate comparison sibling when you only have a single location and want temporal change rather than a spatial comparison.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T18:41:25.382Z","isFirstParty":false}