{"id":"07e58fbb-48f6-4fde-9347-9c85186d5c7e","type":"API","name":"Open Data Finder","slug":"open-data-finder","description":"The data set includes various accommodation (hotels, holiday apartments, group accommodation, etc.) in Hamm and in the Ruhr metropolis. The descriptive content is regularly updated and includes detailed information on contact addresses, opening hours, prices, description texts and photos. ##Guide to the Open Data Finder: ###Step 1 In the first step, you can generate a license key by entering your contact details. ###Step 2 In the next step, you have to choose in which area you want to retrieve the tourist data. To do this, you can select either the perimeter or the area search. Select \"Hamm\" if you want to see accommodations in Hamm. ###Step 3 You can then opt for two types of direct data retrieval: destination.pages (widgets) for the website and destination.meta (API access) for the content. The following data formats are available: CSV, XML, HTML, JSON, JSON LD (schema.org), JSON LD (schema.org ODTA), GEOJSON, ATOM, GPX, JPEG, PNG, RSS, RDF, RSS-FEED.","free_access_class":"UNKNOWN","auth_type":"UNKNOWN","homepage_url":null,"docs_url":null,"repo_url":"https://www.ruhr-tourismus.de/open-data-finder","status":"ACTIVE","verification_state":"UNVERIFIED","tags":[],"logo_url":"https://www.google.com/s2/favicons?sz=64&domain=ruhr-tourismus.de","primary_source_url":"https://www.ruhr-tourismus.de/open-data-finder","extraction_confidence":"0.30","created_at":"2026-07-29T13:48:42.779Z","updated_at":"2026-10-12T20:48:41.460Z","last_verified_at":null,"deprecated_at":null,"ranking_score":29,"last_ranked_at":"2026-09-30T19:51:49.269Z","last_seen_at":null,"last_validated_at":null,"last_uptime_at":null,"search_vector":"'1':50B,301B '2':67B,318B '3':110B,361B 'a':309B,454B 'access':130B,200B,381B,451B 'accommod':9B,14B,106B,177B 'accommodation':260B,265B,428B 'accommodations':357B 'address':35B 'addresses':286B 'after':457B 'and':269B,280B,292B,378B,419B,435B,449B,469B,493B,501B 'apart':12B,183B 'apartments':263B,434B 'api':129B,162B,228B,380B,413B,479B 'are':389B 'area':78B,97B,173B,215B,329B,348B,424B,466B 'as':431B,473B 'atom':152B,245B,403B,496B 'avail':139B 'available':390B 'by':312B,463B 'can':307B,341B,363B,460B 'choos':75B 'choose':326B 'contact':34B,64B,191B,285B,315B,442B 'content':25B,133B,220B,276B,384B,471B 'cover':176B 'covering':427B 'csv':140B,234B,391B,485B 'data':2A,5B,47B,85B,120B,136B,165B,211B,253A,256B,298B,336B,371B,387B,416B,462B 'descript':24B,39B,196B 'description':290B 'descriptive':275B,447B 'destination.meta':128B,229B,379B,480B 'destination.pages':122B,225B,373B,476B 'detail':31B,65B,192B 'detailed':282B 'details':316B,443B 'direct':119B,370B 'do':338B 'e.g':216B,467B 'either':92B,221B,343B,472B 'enter':62B 'entering':313B 'etc':15B,266B 'feed':160B,411B 'finder':3A,48B,254A,299B 'first':53B,304B 'follow':135B 'following':386B 'for':366B,375B,382B,417B 'format':137B,232B 'formats':388B,483B 'generat':57B,202B 'generate':308B 'generating':453B 'geojson':151B,244B,402B,495B 'germani':175B 'germany':426B 'gpx':153B,246B,404B,497B 'group':13B,185B,264B,436B 'guid':43B 'guide':294B 'hamm':17B,100B,108B,167B,217B,268B,351B,359B,418B,468B 'have':324B 'holiday':11B,182B,262B,433B 'hotel':10B,181B 'hotels':261B,432B 'hour':37B,194B 'hours':288B,445B 'html':142B,236B,393B,487B 'if':352B 'in':267B,270B,302B,319B,327B,358B,425B 'includ':7B,30B,190B,233B 'include':441B,484B 'includes':258B,281B 'inform':32B 'information':283B 'is':277B 'jpeg':154B,247B,405B,498B 'json':143B,144B,147B,237B,239B,394B,395B,398B,488B,490B 'json-ld':238B,489B 'key':60B,205B,311B,456B 'ld':145B,148B,240B,396B,399B,491B 'licens':59B,204B 'license':310B,455B 'lodg':186B 'lodgings':437B 'metropoli':22B 'metropolis':273B 'metropolitan':172B,423B 'next':70B,321B 'odta':150B,243B,401B,494B 'of':369B 'on':284B 'open':1A,36B,46B,193B,252A,297B 'opening':287B,444B 'opt':114B,365B 'or':346B,465B,477B 'output':231B,482B 'perimet':94B,213B 'perimeter':345B,464B 'photo':42B,199B 'photos':293B,450B 'png':155B,248B,406B,499B 'price':38B,195B 'prices':289B,446B 'provid':163B 'provides':414B 'queri':210B 'query':461B 'rdf':157B,251B,408B,502B 'record':189B 'records':440B 'regular':27B,187B 'regularly':278B,438B 'requir':201B 'requires':452B 'retriev':82B,121B,219B 'retrieval':372B 'retrieve':333B,470B 'rss':156B,159B,249B,407B,410B,500B 'rss-feed':158B,409B 'ruhr':21B,171B,272B,422B 'schema.org':146B,149B,241B,397B,400B,492B 'search':98B,349B 'see':105B,356B 'select':91B,99B,342B,350B 'set':6B,257B 'step':49B,54B,66B,71B,109B,300B,305B,317B,322B,360B 'such':430B 'support':230B 'supported':481B 'text':40B,197B 'texts':291B,448B 'the':255B,271B,274B,296B,303B,320B,334B,344B,347B,376B,383B,385B,420B 'then':364B 'this':339B,412B 'to':295B,325B,332B,337B,355B 'tourism':164B,415B 'tourist':84B,335B 'two':116B,367B 'type':117B,178B 'types':368B,429B 'updat':28B,188B 'updated':279B,439B 'user':208B 'users':459B 'various':8B,259B 'via':227B,478B 'want':80B,103B,331B,354B 'websit':126B,223B 'website':377B,474B 'which':328B,458B 'wider':170B,421B 'widget':123B,224B 'widgets':374B,475B 'xml':141B,235B,392B,486B 'you':306B,323B,330B,340B,353B,362B 'your':314B","popularity_score":"0.0000","maintenance_score":"0.5000","institution_id":null,"institution_type":null,"country_code":null,"official_confidence":null,"proof_summary":null,"source_seed_url":null,"is_public_sector":true,"published_at":"2026-07-29T15:52:21.976Z","geographic_scope":"NATIONAL","name_en":null,"description_en":"This API provides tourism data for Hamm and the wider Ruhr metropolitan area in Germany, covering accommodation types such as hotels, holiday apartments, and group lodgings. Regularly updated records include contact details, opening hours, prices, descriptive texts, and photos. Access requires generating a license key, after which users can query data by perimeter or area (e.g. Hamm) and retrieve content either as website widgets (destination.pages) or via API (destination.meta). Supported output formats include CSV, XML, HTML, JSON, JSON-LD (schema.org and ODTA), GeoJSON, ATOM, GPX, JPEG, PNG, RSS, and RDF.","native_lang":"de","access_level":"direct","formats":[],"capability_tier":"live","trust_score":10.833333333333332,"merged_into_entry_id":null,"identity_key":"API|https://www.ruhr-tourismus.de/open-data-finder|open data finder","upstream_ref":null,"content_changed_at":null,"title_qualifier":null,"access":{"level":"direct","primary":{"kind":"download","label":"Download distribution","method":"GET","url":"https://www.ruhr-tourismus.de/open-data-finder","source":"query_example","runnable":true,"direct":true},"actions":[{"kind":"download","label":"Download distribution","method":"GET","url":"https://www.ruhr-tourismus.de/open-data-finder","source":"query_example","runnable":true,"direct":true}],"formats":[]},"maturity":{"entry_id":"07e58fbb-48f6-4fde-9347-9c85186d5c7e","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":"discovered","level_index":1,"level_label":"Discovered","meaning":"Source and metadata recorded","counts_as_coverage":false,"blocked_by":"verified","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":false,"reached":false,"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":false,"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":false,"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":false,"reached":false,"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":null,"proven_threshold":80,"institution_id":null,"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.ruhr-tourismus.de","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":"2026-10-12T22:44:43.114Z"},"api_details":null,"dataset_details":null,"license":null,"reuse":{"license_id":null,"license_name":null,"license_url":null,"commercial_use":{"status":"unknown","value":null},"redistribution":{"status":"unknown","value":null},"attribution_required":{"status":"unknown","value":null},"share_alike":{"status":"unknown","value":null},"personal_data_warning":{"status":"unknown","value":null},"cache_and_mirror":{"status":"unknown","value":null},"undetermined":["commercial_use","redistribution","attribution_required","share_alike","personal_data_warning","cache_and_mirror"],"basis":"unverified","confidence":0.1,"confidence_tier":"low","source_text":null,"source_url":null,"reviewed_at":null},"license_raw":null,"latest_check":{"id":"6d29be6a-7d3c-4bbd-b4b4-09c1434e1e4a","entry_id":"07e58fbb-48f6-4fde-9347-9c85186d5c7e","status":"UNVERIFIED","last_checked_at":"2026-10-12T19:23:00.152Z","p50_latency_ms":7212,"p95_latency_ms":null,"last_error":"Source URL is HTML, not a machine-readable API — possible mis-classification","consecutive_failures":8,"created_at":"2026-07-29T13:50:35.912Z","updated_at":"2026-10-12T19:23:00.152Z","consecutive_successes":0,"probe_url":null,"probe_method":null,"probe_http_status":null,"probe_content_type":null,"probe_succeeded_at":null},"data_profile":{"id":"088415f0-f684-4e53-8126-2ec787393749","entry_id":"07e58fbb-48f6-4fde-9347-9c85186d5c7e","profile_source":"distribution","profile_kind":"dataset","dataset_id":null,"fields":[{"name":"@type","type":"text","label":null,"description":null,"description_en":"Schema.org type of the item (e.g. WebPage, BreadcrumbList)."},{"name":"@id","type":"text","label":null,"description":null,"description_en":"Unique schema.org identifier URL for the item."},{"name":"url","type":"text","label":null,"description":null,"description_en":"URL of the web page."},{"name":"name","type":"text","label":null,"description":null,"description_en":"Title of the web page."},{"name":"isPartOf","type":"object","label":null,"description":null,"description_en":"Reference to the website this page belongs to."},{"name":"datePublished","type":"datetime","label":null,"description":null,"description_en":"Date and time the page was originally published."},{"name":"dateModified","type":"datetime","label":null,"description":null,"description_en":"Date and time the page was last modified."},{"name":"breadcrumb","type":"object","label":null,"description":null,"description_en":"Reference to the breadcrumb navigation list for the page."},{"name":"inLanguage","type":"text","label":null,"description":null,"description_en":"Language code of the page content."},{"name":"potentialAction","type":"array","label":null,"description":null,"description_en":"List of possible schema.org actions associated with the page."},{"name":"itemListElement","type":"array","label":null,"description":null,"description_en":"List of breadcrumb items with names and links."},{"name":"description","type":"text","label":null,"description":null,"description_en":"Short descriptive text about the page or item."}],"field_count":12,"sample_records":[{"@id":"https://www.ruhr-tourismus.de/open-data-finder/","url":"https://www.ruhr-tourismus.de/open-data-finder/","name":"Open Data Finder - Ruhr Tourismus GmbH","@type":"WebPage","isPartOf":{"@id":"https://www.ruhr-tourismus.de/#website"},"breadcrumb":{"@id":"https://www.ruhr-tourismus.de/open-data-finder/#breadcrumb"},"inLanguage":"de","dateModified":"2026-01-20T12:24:19+00:00","datePublished":"2023-01-12T06:34:04+00:00","potentialAction":[{"@type":"ReadAction","target":["https://www.ruhr-tourismus.de/open-data-finder/"]}]},{"@id":"https://www.ruhr-tourismus.de/open-data-finder/#breadcrumb","@type":"BreadcrumbList","itemListElement":[{"item":"https://www.ruhr-tourismus.de/","name":"Startseite","@type":"ListItem","position":1},{"name":"Open Data Finder","@type":"ListItem","position":2}]},{"@id":"https://www.ruhr-tourismus.de/#website","url":"https://www.ruhr-tourismus.de/","name":"Ruhr Tourismus GmbH","@type":"WebSite","inLanguage":"de","description":"Mach mal Ruhrlaub","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://www.ruhr-tourismus.de/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueName":"search_term_string","valueRequired":true}}]}],"record_count":null,"data_size_bytes":"173165","dataset_count":null,"query_examples":[{"url":"https://www.ruhr-tourismus.de/open-data-finder","curl":"curl -sL 'https://www.ruhr-tourismus.de/open-data-finder' -o data.json","label":"Download distribution","method":"GET","description":"Full json file download — the schema shown was inferred from the file's first records."},{"url":"https://www.ruhr-tourismus.de/open-data-finder","curl":"curl -sL 'https://www.ruhr-tourismus.de/open-data-finder' -H 'Range: bytes=0-4095'","label":"Preview first bytes","method":"GET","description":"First 4 KB of the file (servers honoring Range requests)."}],"status":"ok","error_message":null,"profiled_at":"2026-10-08T18:50:09.669Z","run_id":"3091142f-d7ac-4aa7-8f10-93170eea3f7e","created_at":"2026-07-29T13:50:40.624Z","updated_at":"2026-10-08T18:50:09.669Z","license_raw":null,"license_id":null,"consecutive_failure_count":0,"last_error_at":null,"last_error_message":null,"previewable":true,"personal_data":{"status":"named_subject_unknown","basis":"name_subject_not_stated","grain":"unknown","allowed":true,"columns":{"direct_identifiers":[],"family_names":[],"given_names":[],"attributes":[],"unresolved_names":["name"],"measures":["isPartOf"],"entity_identifiers":[]},"publication":null,"publication_evidence":null,"notice":"personal data: a NAME is cited and the schema does not say whose — name carries the row's subject in the form that identifies it, and nothing else cited says whether that subject is a person or a thing; permitted under the owner ruling of 2026-08-25 (refusing every name column withholds trees and bus stops and protects nobody) and published as unstated rather than as “no person column”; columns — identifiers: none; names: none; names of an unstated subject: name; attributes: none; measures: isPartOf; entity keys: none"}},"datasets":[],"limits":[],"manifest":{"answer_sha256":"451ceff7f0eb7cc580a37ce820877d1a00bbef8968439ee045b4e0bf5a67dc2c","answer_sha256_rule":"sha256 (hex, UTF-8) of JSON.stringify(this body) after deleting the keys listed in manifest.stamped_keys from manifest, and deleting manifest itself if it is then empty. The hash was computed before the stamp existed, so no field of the stamp is inside it.","stamped_keys":["answer_sha256","answer_sha256_rule","stamped_keys","row_count","row_count_basis","live","live_basis","created_at","created_at_basis","durable_citation"],"row_count":29,"row_count_basis":"Objects that are elements of a JSON array anywhere in this body, excluding manifest. Not a claim about which collection is the answer. Largest single collection: data_profile.fields[] (12 rows).","live":false,"live_basis":"This body was replayed from the worker edge cache (x-edge-cache: hit); the bytes, and therefore answer_sha256, are those of the execution that filled the cache.","created_at":"2026-10-12T22:44:48.649Z","created_at_basis":"When this response body was assembled, deliberately OUTSIDE the hashed bytes so the same answer hashes identically on every request. Not the upstream read time — that is provenance[].retrieved_at. A zone-cached replay carries the assembly time, not your receipt time.","durable_citation":"This manifest is produced at response time and is NOT stored. A durable, replayable citation is persisted only on an explicit cite: GET /api/v1/entries/{id-or-slug}/evidence, or the MCP cite_query tool. Both are entry-scoped, because evidence_manifests is entry-shaped; a domain answer spanning several sources has no single entry and cannot be persisted through that path."}}