{"id":"37ba470f-1f4b-41fd-a584-11daf208c722","type":"API","name":"Cadastre - Communes - CA Saint-Quentin-en-Yvelines","slug":"cadastre-communes-ca-saint-quentin-en-yvelines","description":"Cette donnée concerne les 12 communes de Sain-Quentin-en-Yvelines : Les Clayes-sous-Bois, Coignières, Élancourt, Guyancourt, Magny-les-Hameaux, Maurepas, Montigny-le-Bretonneux, Plaisir, Trappes, La Verrière, Villepreux et Voisins-le-Bretonneux. Origine…","free_access_class":"FREE_NO_AUTH","auth_type":"NONE","homepage_url":"https://www.data.gouv.fr/dataservices/cadastre-communes-ca-saint-quentin-en-yvelines","docs_url":"https://opendata.sqy.fr/datasets/cadastre-communes-ca-saint-quentin-en-yvelines/api-doc","repo_url":null,"status":"ACTIVE","verification_state":"VERIFIED","tags":["land"],"logo_url":"https://udata-avatars.s3.rbx.io.cloud.ovh.net/e2/1a24f07d2a4ec9a52e4fe22f6efd3a-100.png","primary_source_url":"https://www.data.gouv.fr/dataservices/cadastre-communes-ca-saint-quentin-en-yvelines","extraction_confidence":"0.40","created_at":"2026-06-07T22:08:54.986Z","updated_at":"2026-08-15T08:37:51.098Z","last_verified_at":"2026-08-15T04:33:52.079Z","deprecated_at":null,"ranking_score":63,"last_ranked_at":"2026-08-08T23:24:18.003Z","last_seen_at":null,"last_validated_at":null,"last_uptime_at":"2026-08-04T17:53:12.425Z","search_vector":"'12':21B,66B,165B,210B 'access':121B,265B 'agglomer':116B 'agglomeration':260B 'analysi':132B 'analysis':276B 'and':243B,261B,277B 'api':58B,202B 'area':141B,285B 'at':266B,279B 'boi':33B,81B 'bois':177B,225B 'bretonneux':45B,55B,93B,103B,189B,199B,237B,247B 'by':251B 'ca':3A,11A,147A,155A 'cadastr':1A,9A,60B 'cadastral':204B 'cadastre':145A,153A 'cett':17B 'cette':161B 'clay':31B,79B 'clayes':175B,223B 'clayes-sous-boi':30B,78B 'clayes-sous-bois':174B,222B 'coignieres':178B,226B 'coignièr':34B,82B 'commune':2A,22B 'communes':146A,166B 'communiti':76B,114B 'community':220B,258B 'concern':19B 'concerne':163B 'data':63B,207B 'dataset':127B,271B 'de':23B,167B 'donnee':162B 'donné':18B 'elancourt':179B,227B 'en':7A,15A,27B,73B,112B,151A,159A,171B,217B,256B 'et':51B,195B 'for':208B 'franc':143B 'france':287B 'free':119B,263B 'geograph':124B 'geographic':268B 'guyancourt':36B,84B,180B,228B 'hameaux':40B,88B,184B,232B 'is':249B 'it':248B 'la':48B,96B,192B,240B 'land':61B,130B,144C,205B,274B 'land-rel':129B 'land-related':273B 'le':44B,54B,92B,102B,188B,198B,236B,246B 'les':20B,29B,39B,77B,87B,164B,173B,183B,221B,231B 'level':138B,282B 'magni':38B,86B 'magny':182B,230B 'magny-les-hameaux':37B,85B,181B,229B 'map':134B 'mapping':278B 'maurepa':41B,89B 'maurepas':185B,233B 'montigni':43B,91B 'montigny':187B,235B 'montigny-le-bretonneux':42B,90B,186B,234B 'municip':10A,67B,137B 'municipal':281B 'municipalities':154A,211B 'nation':123B 'national':267B 'of':212B,259B,286B 'offer':118B 'offers':262B 'origin':56B 'origine':200B 'plaisir':46B,94B,190B,238B 'provid':59B 'provides':203B 'publish':106B 'published':250B 'quentin':6A,14A,26B,72B,111B,150A,158A,170B,216B,255B 'registri':62B 'registry':206B 'relat':131B 'related':275B 'sain':25B,169B 'sain-quentin-en-yvelin':24B 'sain-quentin-en-yvelines':168B 'saint':5A,13A,71B,110B,149A,157A,215B,254B 'saint-quentin-en-yvelin':4A,12A,70B,109B 'saint-quentin-en-yvelines':148A,156A,214B,253B 'scope':125B,269B 'sous':32B,80B,176B,224B 'support':128B 'supports':272B 'the':209B,213B,252B,270B,280B 'this':201B,284B 'trapp':47B,95B 'trappes':191B,239B 'unauthent':120B 'unauthenticated':264B 'urban':75B,219B 'verriere':193B,241B 'verrièr':49B,97B 'villepreux':50B,98B,194B,242B 'voisin':53B,101B 'voisins':197B,245B 'voisins-le-bretonneux':52B,100B,196B,244B 'within':139B,283B 'yvelin':8A,16A,28B,74B,113B 'yvelines':152A,160A,172B,218B,257B 'élancourt':35B,83B","popularity_score":"0.0000","maintenance_score":"0.7000","institution_id":"1556da97-a320-450f-96fd-32351871487f","institution_type":"MUNICIPALITY","country_code":"FR","official_confidence":40,"proof_summary":"official domain (data.gouv.fr) (catalog: api_gouv_fr)","source_seed_url":null,"is_public_sector":true,"published_at":"2026-06-07T22:08:54.986Z","geographic_scope":"NATIONAL","name_en":"Cadastre - Municipalities - CA Saint-Quentin-en-Yvelines","description_en":"This API provides cadastral (land registry) data for the 12 municipalities of the Saint-Quentin-en-Yvelines urban community: Les Clayes-sous-Bois, Coignières, Élancourt, Guyancourt, Magny-les-Hameaux, Maurepas, Montigny-le-Bretonneux, Plaisir, Trappes, La Verrière, Villepreux and Voisins-le-Bretonneux. It is published by the Saint-Quentin-en-Yvelines community of agglomeration and offers free, unauthenticated access at national geographic scope. The dataset supports land-related analysis and mapping at the municipal level within this area of France.","native_lang":"fr","access_level":"direct","formats":["CSV"],"capability_tier":"live","trust_score":65.75,"access":{"level":"direct","primary":{"kind":"download","label":"Export CSV","method":"GET","url":"https://opendata.sqy.fr/data-fair/api/v1/datasets/cadastre-communes-ca-saint-quentin-en-yvelines/lines?format=csv&size=10000","format":"CSV","source":"query_example","runnable":true,"direct":true},"actions":[{"kind":"download","label":"Export CSV","method":"GET","url":"https://opendata.sqy.fr/data-fair/api/v1/datasets/cadastre-communes-ca-saint-quentin-en-yvelines/lines?format=csv&size=10000","format":"CSV","source":"query_example","runnable":true,"direct":true},{"kind":"query","label":"List records","method":"GET","url":"https://opendata.sqy.fr/data-fair/api/v1/datasets/cadastre-communes-ca-saint-quentin-en-yvelines/lines?size=20","source":"query_example","runnable":true,"direct":true},{"kind":"query","label":"Run verified request","method":"GET","url":"https://opendata.sqy.fr/data-fair/api/v1/datasets/cadastre-communes-ca-saint-quentin-en-yvelines/","source":"probe","runnable":true},{"kind":"query","label":"Schema","method":"GET","url":"https://opendata.sqy.fr/data-fair/api/v1/datasets/cadastre-communes-ca-saint-quentin-en-yvelines/schema","source":"query_example","runnable":true,"direct":false},{"kind":"spec","label":"OpenAPI spec","method":"GET","url":"https://opendata.sqy.fr/data-fair/api/v1/datasets/cadastre-communes-ca-saint-quentin-en-yvelines/api-docs.json","source":"openapi","runnable":false},{"kind":"landing","label":"Read the docs","method":"GET","url":"https://opendata.sqy.fr/datasets/cadastre-communes-ca-saint-quentin-en-yvelines/api-doc","source":"docs","runnable":false},{"kind":"landing","label":"Visit homepage","method":"GET","url":"https://www.data.gouv.fr/dataservices/cadastre-communes-ca-saint-quentin-en-yvelines","source":"homepage","runnable":false}],"formats":["CSV"]},"maturity":{"entry_id":"37ba470f-1f4b-41fd-a584-11daf208c722","granularity":"entry","granularity_label":"One unit = one catalog entry. A PROXY for the SCOPE.md §4 ladder, which governs source families, not entries: a family with 400 entries moves this reading 400 times as much as a family with one. Never compare or combine with the source_family reading.","level":"joinable","level_index":5,"level_label":"Joinable","meaning":"Canonical identifiers and concepts mapped","counts_as_coverage":true,"blocked_by":null,"rungs":[{"level":"discovered","level_index":1,"label":"Discovered","meaning":"Source and metadata recorded","evidence":"membership of the named population the ladder is taken over","counts_as_coverage":false,"met":true,"reached":true,"criterion":"TRUE"},{"level":"verified","level_index":2,"label":"Verified","meaning":"Access tested successfully","evidence":"entries.verification_state = 'VERIFIED'","counts_as_coverage":false,"met":true,"reached":true,"criterion":"entries.verification_state = 'VERIFIED'"},{"level":"profiled","level_index":3,"label":"Profiled","meaning":"Schema, dimensions and licence understood","evidence":"a data profile with at least one field (entry_data_profiles.field_count > 0)","counts_as_coverage":false,"met":true,"reached":true,"criterion":"EXISTS (SELECT 1 FROM entry_data_profiles p WHERE p.entry_id = entries.id AND COALESCE(p.field_count, 0) > 0)"},{"level":"executable","level_index":4,"label":"Executable","meaning":"Queries run through Commodity","evidence":"entries.capability_tier = 'live' — today's proxy for \"queryable through us\"","counts_as_coverage":true,"met":true,"reached":true,"criterion":"entries.capability_tier = 'live'"},{"level":"joinable","level_index":5,"label":"Joinable","meaning":"Canonical identifiers and concepts mapped","evidence":"a field link to a canonical identifier whose sampled VALUES match its format","counts_as_coverage":true,"met":true,"reached":true,"criterion":"EXISTS (SELECT 1 FROM entry_field_links efl WHERE efl.entry_id = entries.id AND efl.identifier_id IS NOT NULL AND efl.value_status = 'match')"},{"level":"reproducible","level_index":6,"label":"Reproducible","meaning":"Snapshots and transformation evidence retained","evidence":"at least one retained evidence manifest (migration 078)","counts_as_coverage":true,"met":false,"reached":false,"criterion":"EXISTS (SELECT 1 FROM evidence_manifests em WHERE em.entry_id = entries.id)"},{"level":"guaranteed","level_index":7,"label":"Guaranteed","meaning":"Monitored against an operational reliability target","evidence":"an active reliability target with a named monitor (migration 096)","counts_as_coverage":true,"met":false,"reached":false,"criterion":"EXISTS (SELECT 1 FROM entry_reliability_targets rt WHERE rt.entry_id = entries.id AND rt.is_active = true)"}],"officialness":{"basis":"catalog_inherited","label":"Inherited from the upstream catalog: this item came from a trusted official government catalog, and that provenance — not per-item proof — is the warrant. Its own proof score is below 80 or it matched no registered institution (apps/worker/src/connectors/catalog/qualify-store.ts).","proof_confidence":40,"proven_threshold":80,"institution_id":"1556da97-a320-450f-96fd-32351871487f","definition":"CASE WHEN COALESCE(entries.is_public_sector, false) IS NOT TRUE THEN 'not_official' WHEN COALESCE(entries.official_confidence, 0) >= 80 AND entries.institution_id IS NOT NULL THEN 'per_item_proven' ELSE 'catalog_inherited' END"},"source_family":{"key":"www.data.gouv.fr","label":"One unit = one source family, approximated by the serving host of the entry's primary source URL (e.g. bdl.stat.gov.pl). A COMPUTED stand-in for the curated families of SCOPE.md §5, which no table holds yet. A family sits at the highest level any of its entries has reached, because a family is integrated to the depth of its deepest working integration. Never compare or combine with the entry reading."},"generated_at":"2026-08-16T13:51:30.917Z"},"api_details":{"id":"a17cc58b-1d70-48e3-bf45-e205c75e8631","entry_id":"37ba470f-1f4b-41fd-a584-11daf208c722","base_url":"https://opendata.sqy.fr/data-fair/api/v1/datasets/cadastre-communes-ca-saint-quentin-en-yvelines/","openapi_url":"https://opendata.sqy.fr/data-fair/api/v1/datasets/cadastre-communes-ca-saint-quentin-en-yvelines/api-docs.json","graphql_url":null,"api_version":null,"spec_format":"openapi","endpoints_count":null,"endpoints":[],"rate_limit_info":null,"free_tier_limits":null,"ping_url":"https://opendata.sqy.fr/data-fair/api/v1/datasets/cadastre-communes-ca-saint-quentin-en-yvelines/","created_at":"2026-06-07T22:08:55.007Z","updated_at":"2026-06-07T22:08:55.007Z"},"dataset_details":{"id":"f81d7e85-fd49-4eb9-8c56-f8874cb81ee5","entry_id":"37ba470f-1f4b-41fd-a584-11daf208c722","upstream_issued":null,"upstream_modified":"2026-06-08T00:05:13.862Z","themes":[],"update_frequency":null,"temporal_start":null,"temporal_end":null,"spatial_coverage":null,"landing_page":null,"license_id":null,"license_raw":null,"has_documentation":false,"has_data_dictionary":false,"has_versioning":false,"source_portal":"datafair","source_portal_url":"https://opendata.sqy.fr","created_at":"2026-06-26T13:12:05.673Z","updated_at":"2026-07-26T18:06:15.320Z","publisher":null,"publisher_url":null,"distributions":[],"license":null},"license":{"id":"lo-2.0","spdx_id":"etalab-2.0","name":"Licence Ouverte 2.0 (France / Etalab)","url":"https://www.etalab.gouv.fr/wp-content/uploads/2017/04/ETALAB-Licence-Ouverte-v2.0.pdf","is_open":true,"is_redistributable":true,"requires_attribution":true,"category":"national","notes":null,"created_at":"2026-06-12T16:29:19.729Z"},"reuse":{"license_id":"lo-2.0","license_name":"Licence Ouverte 2.0 (France / Etalab)","license_url":"https://www.etalab.gouv.fr/wp-content/uploads/2017/04/ETALAB-Licence-Ouverte-v2.0.pdf","commercial_use":{"status":"yes","value":true},"redistribution":{"status":"yes","value":true},"attribution_required":{"status":"yes","value":true},"share_alike":{"status":"no","value":false},"personal_data_warning":{"status":"yes","value":true},"cache_and_mirror":{"status":"yes","value":true},"undetermined":[],"basis":"licence_text","confidence":0.95,"confidence_tier":"high","source_text":"Texte de la licence - le reutilisateur est libre \"de la communiquer, la reproduire, la copier ; de l'adapter, la modifier, l'extraire et la transformer, notamment pour creer des Informations derivees ; de la diffuser, la redistribuer, la publier et la transmettre, de l'exploiter a titre commercial\". Seule obligation : \"mentionner la paternite de l'Information : sa source (a minima le nom du Concedant) et la date de la derniere mise a jour\". Le texte rappelle que le reutilisateur doit respecter \"le cadre legal relatif a la protection des donnees a caractere personnel\". Aucune clause de partage a l'identique n'est imposee.","source_url":"https://github.com/etalab/licence-ouverte/blob/master/LO.md","reviewed_at":null},"license_raw":"https://www.etalab.gouv.fr/licence-ouverte-open-licence","latest_check":{"id":"f4977e0a-06ed-453a-b31f-3bed310099e9","entry_id":"37ba470f-1f4b-41fd-a584-11daf208c722","status":"VERIFIED","last_checked_at":"2026-08-15T04:33:51.779Z","p50_latency_ms":1455,"p95_latency_ms":null,"last_error":null,"consecutive_failures":0,"created_at":"2026-06-08T12:43:09.170Z","updated_at":"2026-08-15T04:33:51.779Z","consecutive_successes":13,"probe_url":"https://opendata.sqy.fr/data-fair/api/v1/datasets/cadastre-communes-ca-saint-quentin-en-yvelines/","probe_method":"GET","probe_http_status":200,"probe_content_type":"application/json; charset=utf-8","probe_succeeded_at":"2026-08-15T04:33:51.779Z"},"data_profile":{"id":"56f8f909-b7cc-4ef3-8926-9dee63088301","entry_id":"37ba470f-1f4b-41fd-a584-11daf208c722","profile_source":"datafair","profile_kind":"dataset","dataset_id":null,"fields":[{"name":"objectid","type":"integer","label":"Identifiant interne ArcGIS","filterable":true,"description":null,"description_en":"Internal ArcGIS record identifier."},{"name":"anneemajic","type":"integer","label":"Année d'intégration MAJIC","filterable":true,"description":null,"enum_values":["2025"],"description_en":"Year the MAJIC cadastral data was integrated."},{"name":"ccodep","type":"integer","label":"Code département","filterable":true,"description":null,"enum_values":["78"],"description_en":"Department code where the commune is located."},{"name":"codcomm","type":"integer","label":"ID commune","filterable":true,"description":null,"description_en":"INSEE commune identifier code."},{"name":"nom","type":"string","label":"Nom de commune","filterable":true,"description":null,"description_en":"Name of the commune."},{"name":"shape_area","type":"number","label":"SHAPE.AREA","filterable":true,"description":null,"description_en":"Area of the commune's boundary polygon."},{"name":"geometry","type":"string","label":null,"concept":"https://purl.org/geojson/vocab#geometry","filterable":true,"description":null,"description_en":"Polygon geometry of the commune boundary."},{"name":"shape_len","type":"number","label":"SHAPE.LEN","filterable":true,"description":null,"description_en":"Perimeter length of the commune's boundary polygon."},{"name":"id","type":"integer","label":null,"filterable":true,"description":null,"description_en":"Sequential record identifier."}],"field_count":9,"sample_records":[{"id":1,"nom":"CLAYES-SOUS-BOIS (LES)","_score":null,"ccodep":78,"codcomm":780165,"geometry":"{\"type\":\"Polygon\",\"coordinates\":[[[1.9930923014831183,48.79864839141606],[1.9944474823676,48.79882934276281],[1.9946717307655781,48.798895970615014],[1.9940593605103005,48.79924946533231],[1.9940358141476722,48.799323818087444],[1.9935437421213076,48.799591212945025],[1.9933093370322115,48.79971849096363],[1.9931156733182511,48.79982364092456],[1.9930180852796635,48.799876568911635],[1.9929653684521,48.79990515701685],[1.9929670881265684,48.799914435738486],[1.9930098808892371,48.80006141027546]…","objectid":1,"shape_len":12103.3397754959,"anneemajic":2025,"shape_area":6128130.6994},{"id":2,"nom":"COIGNIERES","_score":null,"ccodep":78,"codcomm":780168,"geometry":"{\"type\":\"Polygon\",\"coordinates\":[[[1.9190289420423163,48.73307928981087],[1.9194528857491,48.733255787769146],[1.9197082585725,48.733380690617125],[1.9199380902222527,48.73357424666157],[1.9202847930847875,48.734137386710536],[1.9206552752440689,48.73473321765596],[1.9214425608889338,48.7358775527588],[1.9221756153115355,48.73680713537995],[1.9226241154083399,48.7373620498529],[1.9229510461637742,48.73777191749447],[1.9233545310797986,48.738327935420344],[1.9241223827403555,48.73938203835245],[1…","objectid":2,"shape_len":15145.7652509631,"anneemajic":2025,"shape_area":8015383.5744},{"id":3,"nom":"ELANCOURT","_score":null,"ccodep":78,"codcomm":780208,"geometry":"{\"type\":\"Polygon\",\"coordinates\":[[[1.973470294713624,48.753703456253284],[1.9767891473769215,48.75755297523668],[1.9769029461689533,48.757695913136246],[1.977108662001564,48.757954252166485],[1.9772256007056912,48.75811007897672],[1.97751986686153,48.75850240567508],[1.977644752386554,48.75866891559912],[1.9776864625921229,48.758724869297104],[1.9777411499353605,48.75879820680939],[1.97827028288711,48.75950803838899],[1.9785295609849507,48.759855711029566],[1.9785720672633726,48.7599127507315],[…","objectid":3,"shape_len":20102.8204478463,"anneemajic":2025,"shape_area":9259415.43495},{"id":4,"nom":"GUYANCOURT","_score":null,"ccodep":78,"codcomm":780297,"geometry":"{\"type\":\"Polygon\",\"coordinates\":[[[2.088406724673116,48.752578449875536],[2.089790606996338,48.75429859984305],[2.0899527230612627,48.75423198233399],[2.0902297520415853,48.75412148648419],[2.0905131146250424,48.75401418795634],[2.091474207605857,48.753683453511556],[2.0915997412459855,48.753826727726036],[2.0916956499162667,48.75394602396191],[2.091714389606576,48.75398529495841],[2.0918339671257753,48.754269903241756],[2.091802096551477,48.75436246643693],[2.091776229310264,48.75436379073948],…","objectid":4,"shape_len":16716.4136557371,"anneemajic":2025,"shape_area":13176187.0958},{"id":5,"nom":"MAGNY-LES-HAMEAUX","_score":null,"ccodep":78,"codcomm":780356,"geometry":"{\"type\":\"Polygon\",\"coordinates\":[[[2.0732003118737405,48.713759981843],[2.073492930798354,48.71397316011826],[2.073610007236155,48.714058377483035],[2.073724522163402,48.71413511987723],[2.0740443150864625,48.71433421599429],[2.0741177613549437,48.714375460754255],[2.0742379553073094,48.71443911752444],[2.074316313793047,48.71447932254191],[2.0743567260304143,48.714498895351944],[2.0743990258407563,48.71451929281898],[2.0744327182207067,48.71453476417502],[2.0744722190833906,48.71455217108058],[…","objectid":5,"shape_len":27803.5842512939,"anneemajic":2025,"shape_area":16737383.6589}],"record_count":"12","data_size_bytes":null,"dataset_count":null,"query_examples":[{"url":"https://opendata.sqy.fr/data-fair/api/v1/datasets/cadastre-communes-ca-saint-quentin-en-yvelines/lines?size=20","curl":"curl -s 'https://opendata.sqy.fr/data-fair/api/v1/datasets/cadastre-communes-ca-saint-quentin-en-yvelines/lines?size=20' -H 'Accept: application/json'","label":"List records","method":"GET","description":"First 20 records of the dataset as JSON."},{"url":"https://opendata.sqy.fr/data-fair/api/v1/datasets/cadastre-communes-ca-saint-quentin-en-yvelines/schema","curl":"curl -s 'https://opendata.sqy.fr/data-fair/api/v1/datasets/cadastre-communes-ca-saint-quentin-en-yvelines/schema' -H 'Accept: application/json'","label":"Schema","method":"GET","description":"Field definitions (columns, types) of the dataset."},{"url":"https://opendata.sqy.fr/data-fair/api/v1/datasets/cadastre-communes-ca-saint-quentin-en-yvelines/lines?format=csv&size=10000","curl":"curl -sL 'https://opendata.sqy.fr/data-fair/api/v1/datasets/cadastre-communes-ca-saint-quentin-en-yvelines/lines?format=csv&size=10000' -o dataset.csv","label":"Export CSV","method":"GET","description":"Records as CSV (raises size for larger exports)."}],"status":"ok","error_message":null,"profiled_at":"2026-07-26T18:06:14.455Z","run_id":"3f96f5b7-9b71-482f-9649-b32a1f6b49c5","created_at":"2026-06-12T19:12:59.475Z","updated_at":"2026-07-26T18:06:14.455Z","license_raw":"https://www.etalab.gouv.fr/licence-ouverte-open-licence","license_id":"lo-2.0","consecutive_failure_count":0,"last_error_at":null,"last_error_message":null,"previewable":true},"datasets":[],"limits":[]}