{"title":"Rare Context API","answer":"Rare Context maps scarce assets (powered land, power plants, data centers, substations, grid capacity, mines, water rights) and who owns them, from public registers. This is the start of its API: every answer is JSON with links to open as they are.","how_to_answer":"Open links one after another, on your own, until the answer is in front of you; don't stop at this page or after the first link. Follow links.refine step by step (the kind of site, the distance to a substation, the voltage, the size, the zoning, the region, the sort order) and links.next for more; open a site's details for all its facts. Every link can be opened as it is. To write a search yourself: https://rarecontext.com/api/sites followed by /key/value pairs (the filters), never a ?query string.","links":{"self":"https://rarecontext.com/api/sites","next":null,"refine":{"country":{"Sites near grid capacity in the Netherlands (5,731 sites)":"https://rarecontext.com/api/sites/country/nl","Sites near grid capacity in the United Kingdom (8,730 sites)":"https://rarecontext.com/api/sites/country/gb","Sites near grid capacity in Germany (5,000 sites)":"https://rarecontext.com/api/sites/country/de"},"examples":{"Business parks with land for sale in the Netherlands within 2 km of a substation, closest first":"https://rarecontext.com/api/sites/country/nl/kind/park/max_km/2/sort/km","Sites of 20 ha or more in the Netherlands within 2 km of a 380 kV substation":"https://rarecontext.com/api/sites/country/nl/min_ha/20/max_ehv_km/2","Brownfield sites in Great Britain within 1 km of a substation, most headroom first":"https://rarecontext.com/api/sites/country/gb/kind/brownfield/max_km/1/sort/headroom","Sites in Great Britain with 30 MVA or more of demand headroom at the nearest substation":"https://rarecontext.com/api/sites/country/gb/min_mw/30","Sites of 20 ha or more in Germany within 2 km of a 380 kV substation":"https://rarecontext.com/api/sites/country/de/min_ha/20/max_ehv_km/2"},"other":{"Find a page by name (an asset, owner or place), e.g. Colossus":"https://rarecontext.com/api/search/q/colossus","One asset or site by its page path, e.g. the W A Parish power plant":"https://rarecontext.com/api/entity/power-plants/us/texas/w-a-parish-3470","An owner by its page slug or name, e.g. Blackstone":"https://rarecontext.com/api/owner/blackstone-inc-5299004lw4qwgzub8y96","Rankings, e.g. the largest data centers":"https://rarecontext.com/api/rankings/class/data-centers","Every ranking there is":"https://rarecontext.com/api/rankings"}}},"countries":{"Netherlands":{"country":"NL","sites":5731,"search":"https://rarecontext.com/api/sites/country/nl","page":"https://rarecontext.com/sites/nl","coverage":"the 5,000 largest of the 22,834 candidate sites within 2 km of a substation of 110 kV or more, so every candidate of 29 ha or more is here and the rest are smaller; business parks with land for sale come on top, at any size"},"United Kingdom":{"country":"GB","sites":8730,"search":"https://rarecontext.com/api/sites/country/gb","page":"https://rarecontext.com/sites/gb","coverage":"the 5,000 largest of the 44,093 candidate sites near a primary or bulk supply substation with headroom, so every candidate of 27 ha or more is here and the rest are smaller; brownfield register sites come on top, at any size"},"Germany":{"country":"DE","sites":5000,"search":"https://rarecontext.com/api/sites/country/de","page":"https://rarecontext.com/sites/de","coverage":"the 5,000 largest of the 308,259 candidate sites within 2 km of a substation of 110 kV or more, so every candidate of 50 ha or more is here and the rest are smaller"}},"regions":{"Netherlands":{"South Holland (779 sites)":"https://rarecontext.com/api/sites/country/nl/region/south-holland","North Brabant (715 sites)":"https://rarecontext.com/api/sites/country/nl/region/north-brabant","North Holland (661 sites)":"https://rarecontext.com/api/sites/country/nl/region/north-holland","Groningen (623 sites)":"https://rarecontext.com/api/sites/country/nl/region/groningen","Gelderland (554 sites)":"https://rarecontext.com/api/sites/country/nl/region/gelderland","Flevoland (536 sites)":"https://rarecontext.com/api/sites/country/nl/region/flevoland","Overijssel (522 sites)":"https://rarecontext.com/api/sites/country/nl/region/overijssel","Limburg (315 sites)":"https://rarecontext.com/api/sites/country/nl/region/limburg","Drenthe (303 sites)":"https://rarecontext.com/api/sites/country/nl/region/drenthe","Friesland (290 sites)":"https://rarecontext.com/api/sites/country/nl/region/friesland","Zeeland (250 sites)":"https://rarecontext.com/api/sites/country/nl/region/zeeland","Utrecht (183 sites)":"https://rarecontext.com/api/sites/country/nl/region/utrecht"},"United Kingdom":{"North Yorkshire (571 sites)":"https://rarecontext.com/api/sites/country/gb/region/north-yorkshire","Dorset (427 sites)":"https://rarecontext.com/api/sites/country/gb/region/dorset","Wiltshire (364 sites)":"https://rarecontext.com/api/sites/country/gb/region/wiltshire","County Durham (330 sites)":"https://rarecontext.com/api/sites/country/gb/region/county-durham","East Riding of Yorkshire (314 sites)":"https://rarecontext.com/api/sites/country/gb/region/east-riding-of-yorkshire","Leeds (295 sites)":"https://rarecontext.com/api/sites/country/gb/region/leeds","West Berkshire (209 sites)":"https://rarecontext.com/api/sites/country/gb/region/west-berkshire","Glasgow City (203 sites)":"https://rarecontext.com/api/sites/country/gb/region/glasgow-city","Wakefield (177 sites)":"https://rarecontext.com/api/sites/country/gb/region/wakefield","North Lanarkshire (172 sites)":"https://rarecontext.com/api/sites/country/gb/region/north-lanarkshire","Basingstoke and Deane (160 sites)":"https://rarecontext.com/api/sites/country/gb/region/basingstoke-and-deane","South Oxfordshire (156 sites)":"https://rarecontext.com/api/sites/country/gb/region/south-oxfordshire","Somerset (145 sites)":"https://rarecontext.com/api/sites/country/gb/region/somerset","Buckinghamshire (142 sites)":"https://rarecontext.com/api/sites/country/gb/region/buckinghamshire","Bradford (127 sites)":"https://rarecontext.com/api/sites/country/gb/region/bradford","Cotswold (127 sites)":"https://rarecontext.com/api/sites/country/gb/region/cotswold","New Forest (125 sites)":"https://rarecontext.com/api/sites/country/gb/region/new-forest","Northumberland (122 sites)":"https://rarecontext.com/api/sites/country/gb/region/northumberland","Barnsley (119 sites)":"https://rarecontext.com/api/sites/country/gb/region/barnsley","Test Valley (114 sites)":"https://rarecontext.com/api/sites/country/gb/region/test-valley","Sheffield (113 sites)":"https://rarecontext.com/api/sites/country/gb/region/sheffield","Rotherham (108 sites)":"https://rarecontext.com/api/sites/country/gb/region/rotherham","Windsor and Maidenhead (107 sites)":"https://rarecontext.com/api/sites/country/gb/region/windsor-and-maidenhead","West Oxfordshire (103 sites)":"https://rarecontext.com/api/sites/country/gb/region/west-oxfordshire","Swindon (98 sites)":"https://rarecontext.com/api/sites/country/gb/region/swindon","Winchester (88 sites)":"https://rarecontext.com/api/sites/country/gb/region/winchester","Sunderland (87 sites)":"https://rarecontext.com/api/sites/country/gb/region/sunderland","Kirklees (82 sites)":"https://rarecontext.com/api/sites/country/gb/region/kirklees","Barnet (78 sites)":"https://rarecontext.com/api/sites/country/gb/region/barnet","Fife (77 sites)":"https://rarecontext.com/api/sites/country/gb/region/fife","Gateshead (74 sites)":"https://rarecontext.com/api/sites/country/gb/region/gateshead","Chichester (73 sites)":"https://rarecontext.com/api/sites/country/gb/region/chichester","Hillingdon (69 sites)":"https://rarecontext.com/api/sites/country/gb/region/hillingdon","Newcastle upon Tyne (64 sites)":"https://rarecontext.com/api/sites/country/gb/region/newcastle-upon-tyne","North Ayrshire (62 sites)":"https://rarecontext.com/api/sites/country/gb/region/north-ayrshire","Peterborough (62 sites)":"https://rarecontext.com/api/sites/country/gb/region/peterborough","Hartlepool (60 sites)":"https://rarecontext.com/api/sites/country/gb/region/hartlepool","Southwark (60 sites)":"https://rarecontext.com/api/sites/country/gb/region/southwark","Redcar and Cleveland (59 sites)":"https://rarecontext.com/api/sites/country/gb/region/redcar-and-cleveland","South Lanarkshire (59 sites)":"https://rarecontext.com/api/sites/country/gb/region/south-lanarkshire"},"Germany":{"Baden-Württemberg (1,059 sites)":"https://rarecontext.com/api/sites/country/de/region/baden-wurttemberg","North Rhine-Westphalia (650 sites)":"https://rarecontext.com/api/sites/country/de/region/north-rhine-westphalia","Lower Saxony (579 sites)":"https://rarecontext.com/api/sites/country/de/region/lower-saxony","Brandenburg (567 sites)":"https://rarecontext.com/api/sites/country/de/region/brandenburg","Hesse (403 sites)":"https://rarecontext.com/api/sites/country/de/region/hesse","Rhineland-Palatinate (308 sites)":"https://rarecontext.com/api/sites/country/de/region/rhineland-palatinate","Saxony (272 sites)":"https://rarecontext.com/api/sites/country/de/region/saxony","Saxony-Anhalt (265 sites)":"https://rarecontext.com/api/sites/country/de/region/saxony-anhalt","Mecklenburg-Vorpommern (258 sites)":"https://rarecontext.com/api/sites/country/de/region/mecklenburg-vorpommern","Schleswig-Holstein (241 sites)":"https://rarecontext.com/api/sites/country/de/region/schleswig-holstein","Thuringia (205 sites)":"https://rarecontext.com/api/sites/country/de/region/thuringia","Saarland (113 sites)":"https://rarecontext.com/api/sites/country/de/region/saarland","Berlin (46 sites)":"https://rarecontext.com/api/sites/country/de/region/berlin","Hamburg (34 sites)":"https://rarecontext.com/api/sites/country/de/region/hamburg"}},"filters":{"country":"NL, GB or DE (default NL)","region":"a province (NL), local authority (GB) or Land (DE): its key, URL slug or name","min_ha":"minimum area in hectares","max_km":"maximum distance to the nearest substation, km","kind":"NL: park, on_park, parcels; GB: brownfield, parcels","min_category":"NL: minimum environmental category of a business park (1 to 6)","min_kv":"NL, DE: minimum voltage of the nearest substation, kV","max_tso_km":"DE: maximum distance to the nearest transmission substation (220 kV and up), km","min_tso_kv":"DE: minimum voltage of that transmission substation (220 or 380)","max_ehv_km":"NL, DE: maximum distance to the nearest 380 kV substation, km, even where a lower-voltage substation is nearer","dno":"GB: network operator of the nearest substation, a group (Northern Powergrid) or one licence area","min_mw":"GB: minimum demand headroom at the nearest substation, MVA or MW","congestion":"GB (NL once public: the TenneT station): congestion for new demand, none or none,limited","regional":"NL, once public: the regional operator's offtake status at the site's postcode, none, limited, waitlist or full; it binds a medium-voltage connection","min_n2k":"NL: minimum distance to Natura 2000, km","outside_n2k":"NL: 1 for outside Natura 2000 areas","zoning":"NL, DE: zoning class of the plan, e.g. industrial,commercial","land_use":"DE: land use in the cadastre","desig":"GB, DE: in:<designation>, out:<designation> or none","min_permits":"NL, GB: minimum permits nearby","min_areas":"DE: minimum designated wind or solar areas within 5 km","max_price":"NL: maximum farmland price, EUR/ha","max_water":"maximum water stress: 0 low to 4 extremely high, or low, low_medium, medium_high, high, extremely_high","sort":"score (default), ha, km, n2k_km, headroom, kv, tso_km, ehv_km, permits, areas, price, water, category","touching":"1 to include sites ruled out in review","ranked":"1 for ranked sites only (leaves out sites that touch their substation)","limit":"sites per answer, default 20, at most 1000","offset":"the first site to list, from 0 (links.next has it)","format":"json or html (default: html for a reader that asks for HTML, else json)"},"docs":{"This API as a page, with the prompt for an assistant":"https://rarecontext.com/api","For language models":"https://rarecontext.com/llms.txt","The MCP server":"https://rarecontext.com/mcp-server","Open data":"https://rarecontext.com/data"}}