canonical · -0.1 capability

Open Data

Score 36.4 / 100 560 providers +76 via APIs 532 APIs Search apis.io →

Providers using this tag (560)

Ranked by API Evangelist rating — Exemplar and Strong are expanded by default.

Exemplar 2 Complete, well-documented, and agent-ready

OpenMercantilBDNSBORMEBusiness RegistryCIF3 APIs80.6 OpenSanctionsSanctions ScreeningAMLPolitically Exposed PersonsCompliance1 API67.9

Strong 19 Solid coverage with minor gaps

UK Power NetworksEnergyUnited KingdomUtilitiesElectricity2 APIs61.7 EPA — U.S. Environmental Protection AgencyGovernmentEnvironmentalAir Quality22 APIs60.7 La Poste GroupeCompanyLogisticsShippingPackage Tracking4 APIs60.5 Plinth US Grants DataPhilanthropyGrantsNon-ProfitFoundations1 API60.5 University of WaterlooEducationHigher EducationUniversity1 API60.4 Open Food FactsFoodNutritionProduct Data8 APIs60.1 GZW Data APIGamingVideo Gamesgray-zone-warfareGame Data1 API59.7 flatin.ptReal EstateProperty TaxTaxIMI1 API59.4 Electricity North WestEnergyUnited KingdomUtilitiesElectricity2 APIs58.7 General Services AdministrationFederal GovernmentProcurementAcquisition22 APIs58.0 DietlyAPIFoodNutritionBarcodesopen-food-facts1 API57.4 Tandoor RecipesRecipesMeal PlanningFoodNutrition2 APIs57.3 BarclaysBankingCredit CardsFAPIFinance52 APIs56.6 Consumer Data Right (Energy)EnergyAustraliaUtilitiesElectricity6 APIs56.5 SirenicCompany DataBusiness RegistryKYBSanctions Screening2 APIs56.0 FlightFinderAviationAviation SafetyAccident Data1 API55.2 FindLocalEventHyperlocalCommunityData2 APIs55.1 We > Ultrarichwealth inequalityeconomic inequalityFinanceEconomics1 API55.0 Northern PowergridEnergyUnited KingdomUtilitiesElectricity2 APIs54.8

Developing 99 Usable, with meaningful gaps to close

Thin 150 Limited public surface area

Emerging 201 Early or largely undocumented

Minimal 89 Almost no public developer surface

APIs with this tag (526)

Ranked by the provider's API Evangelist rating — the Kin Score is scored per provider, not per API, so every API of a provider shares its band. How the rating works →

Exemplar 1 Complete, well-documented, and agent-ready

Remote online notarization requirements by U.S. jurisdictionStatute-cited remote online notarization requirements for all 50 U.S. states and the District of Columbia: ...66.5

Strong 4 Solid coverage with minor gaps

University of Waterloo Dataverse Collection (Borealis)Waterloo's named research-data collection on Borealis, the Canadian consortial Dataverse repository operate...60.4 Second Life Live Data FeedsAnonymous, unauthenticated feeds publishing live Second Life grid statistics (grid status, total registered...60.3 Consumers Energy Outage Map ArcGIS REST APIConsumers Energy publishes its outage map data as an anonymous Esri ArcGIS Server 11.5 REST Services Direct...54.8 Northern Powergrid Open Data Search API v1The original Opendatasoft Search API, still live on the portal and still carrying its own interactive conso...54.8

Developing 115 Usable, with meaningful gaps to close

Thin 110 Limited public surface area

UK Open Banking Open Data APIPublic-facing APIs enabling third-party developers to access standardized open data published by Account Se...39.2 Princeton Data Commons — DiscoveryPrinceton's research data repository, split into pdc_describe for deposit and description and pdc_discovery...39.1 Princeton University Art Museum APIOpen, REST-style API providing developer access to data about the Princeton University Art Museum and its c...39.1 Princeton University Library Maps and Geospatial Data (PUL Map)GeoBlacklight application at maps.princeton.edu (pulibrary/pulmap) serving Princeton's geospatial data cata...39.1 PUL Bibliographic Data Web Service (Bibdata)Princeton University Library's own bibliographic data service at bibdata.princeton.edu. A Rails application...39.1 Borealis Dataverse — Université de Montréal collectionUniversité de Montréal's research-data collection inside Borealis, the Canadian national Dataverse. 452 Ude...39.0 SAMHSA Data PortalSAMHSA's data portal provides access to national and state-level behavioral health statistics including the...38.4 SAMHSA Mental Health Client Level DataClient-Level Data (CLD) from state mental health agencies on clients receiving state-funded mental health s...38.4 UBIRA eData (EPrints OAI-PMH + REST)UBIRA eData is the University of Birmingham's own EPrints research-data repository, running on Birmingham i...38.3 UCD Digital Library collection data exportsStatic, keyless Dublin Core metadata exports for UCD Library's digital cultural-heritage collections — meta...38.2 Chalmers Data Repository on SND (DORIS)Chalmers deposits research data through DORIS, the deposit service of the Swedish National Data Service (SN...38.1 Chalmers Open Digital Repository (ODR) OAI-PMHOAI-PMH 2.0 metadata harvesting interface for the Chalmers Open Digital Repository (ODR), which holds stude...38.1 Chalmers Research OAI-PMHOAI-PMH 2.0 metadata harvesting interface for the Chalmers Research portal (research.chalmers.se), covering...38.1 ClinicalTrials.gov Bulk DownloadsClinicalTrials.gov provides bulk CSV and JSON downloads of the full study registry through the data-api dow...38.1 Hampden & Co Open Data APIPublic, unauthenticated Open Data reference API conforming to the OBIE UK Open Banking Open Data standard (...38.1 Dartmouth Open Data (ArcGIS Hub tenant)Dartmouth's open-data portal, a tenant site on Esri's ArcGIS Hub. The data and the catalog are Dartmouth's;...38.0 CenterPoint Energy Green Button Connect My Data (NAESB ESPI)NAESB ESPI (Energy Services Provider Interface) Green Button export of a CenterPoint Energy electric custom...37.6 DataFirst Microdata Catalog API (NADA)DataFirst is a University of Cape Town research unit and data service providing online access to survey and...37.2 Figshare research data repository tenancyThe University's tenancy of Figshare for research data, at southampton.figshare.com. Live and reachable but...37.2 ZivaHub Open Data (Figshare for Institutions tenancy)ZivaHub is UCT's institutional open data repository for research data and scholarly outputs. It is a Figsha...37.2 Colenda Digital Repository — Search JSONPenn Libraries' digital repository at colenda.library.upenn.edu exposes a Blacklight/Solr JSON search respo...37.0 OPenn — Open Manuscript DataPenn Libraries' bulk open-data site publishing high-resolution manuscript images and TEI/XML descriptions i...37.0 Western Pennsylvania Regional Data Center (WPRDC) CKAN APIWPRDC is a regional open data portal led by the University Center for Social and Urban Research (UCSUR) at ...36.0 OSHA Enforcement Data APIRead-only access to OSHA enforcement records — inspections, violations, citation history, general duty clau...35.6 Federal Housing Finance Agency Data CatalogFHFA's agency data catalog, published as a Project Open Data v1.1 (DCAT-US) JSON-LD document at https://www...35.4 Coutts Open Data APIOBIE Open Data API for Coutts publishing PUBLIC, unauthenticated reference data for its commercial/business...35.1 data.bris Research Data Repositorydata.bris is the University of Bristol's own research data repository — institution-built and institution-h...35.1 Department of Education Open Data Platform APIThe Department of Education Open Data Platform (ODP) at data.ed.gov is built on CKAN and exposes a CKAN-com...35.1 Open Spatial Data Portal (Esri ArcGIS Hub tenancy)TENANT RELATIONSHIP. An Esri ArcGIS Hub site publishing University of Melbourne campus GIS layers — buildin...35.1 DOI Open Data CatalogDepartment-wide open-data catalog at data.doi.gov, including datasets from all Interior bureaus.35.0 Surge Toxicity DatasetThe world's largest open social-media toxicity dataset, published under MIT license.34.5 U.S. Forest Service Geospatial Data Discovery (DCAT-US catalog)The agency's Geospatial Data Discovery site publishes a machine-readable DCAT-US 1.1 / Project Open Data ca...34.5 Do Not Call (DNC) Reported Calls Data APIRead-only REST endpoint returning consumer reports of unwanted and illegal telemarketing calls, filterable ...34.4 EAC Open Data CatalogThe EAC's federal open-data inventory, served at https://www.eac.gov/data.json and declaring conformance to...34.4 HSR Early Termination Notices APIRead-only REST endpoint returning Hart-Scott-Rodino premerger notifications for which early termination of ...34.4 UNICEF SDMX Data Warehouse APIThe UNICEF SDMX REST API provides programmatic access to UNICEF's Data Warehouse Explorer, containing 748+ ...34.2 Manitoba Hydro Hydrological DataManitoba Hydro's near-real-time hydrological monitoring application, a KISTERS WISKI Web Public deployment ...34.1 La Poste dataNOVA Open Data APIOpen data portal powered by OpenDataSoft exposing 18+ datasets including postal office locations, street ma...34.0 Bureau of Consular Affairs Data Catalog (CKAN API)The CA Data Catalog provides access to datasets from the Bureau of Consular Affairs via the CKAN API. It in...33.9 King's College London Research Data Repository (Figshare tenancy)King's research data repository, operated for King's by Figshare. The data, the DOIs, the DataCite membersh...33.5 QIR / Kyushu University Collections Bulk Metadata (TSV via Handle)Quarterly full-metadata TSV exports for the Kyushu University Library digital collections, distributed thro...33.5 ERG Science Center data archive (ISEE, Nagoya University)Open, machine-traversable HTTPS data archive operated by the ERG Science Center at Nagoya University's Inst...33.3 Bulk Data DumpsNightly data dumps of the collection and related resources, published as JSON in a public GitHub repository...33.2 UC Berkeley Library GeoData (GeoBlacklight) Catalog APIThe UC Berkeley Library's GIS and map discovery application, built and hosted by the Library itself (the ap...33.0 DHS Open Data CatalogThe DHS Open Data Catalog publishes datasets across the Department's mission areas (immigration, law enforc...32.9 data.ncl Research Data Repository (Figshare tenancy)Newcastle University's institutional research data repository, operated for the university by Figshare on a...31.9 ECPPEC Electoral Data GraphQL APIA GraphQL API over the Eighteenth-Century Political Participation and Electoral Culture research dataset — ...31.9 Newcastle University eTheses OAI-PMH EndpointAn OAI-PMH 2.0 metadata harvesting interface over Newcastle University's electronic theses repository, runn...31.9 Queensland Government Open Data Portal (UQ organisation)UQ has no open data portal of its own. It publishes as an organisation on the Queensland Government's CKAN ...31.9 Urban Observatory API (Urban Sciences Building) — EntityAn entity ordinarily describes a spatial location, such as a room in a building or a pole in the street. In...31.9 Urban Observatory API (Urban Sciences Building) — FeedA feed is a representation of a measurement or parametrisation, usually a metric, for example the observed ...31.9 Urban Observatory API (Urban Sciences Building) — SummaryA compact summary view over Urban Sciences Building entities and the feeds attached to them.31.9 UAEU Open Data on the UAE Federal Open Data Portal (CKAN)UAEU publishes open datasets as an organization account on the UAE federal open data portal operated by the...31.7 U of T Dataverse (Borealis) — tenantThe University of Toronto's research data repository collection inside Borealis, the Canadian Dataverse Rep...31.5 Curtin Data Platform (AMP)Curtin's internal data catalog, dashboard and file-search platform — a Remix single-page application at dat...31.3 HealthData.gov SODA APIThe Socrata Open Data API (SODA) provides programmatic access to all public datasets hosted on HealthData.g...31.1 ROR Registration (ror.org/013fsnh78)The University of Waikato is registered in the Research Organization Registry as https://ror.org/013fsnh78,...31.1 ATF Federal Firearm Licensee Locations (ArcGIS Feature Service)An anonymous Esri GeoServices REST feature service carrying 77,514 geocoded Federal Firearms Licensee premi...30.7 ATF Office Locations (ArcGIS Feature Service)An anonymous Esri GeoServices REST feature service listing 537 ATF offices and field divisions across the U...30.7 Western Power Public Secure Services (SLIP)Western Power's network asset and capacity spatial data — distribution and transmission overhead powerlines...30.6 UNAL open data on datos.gov.co (Socrata)UNAL's open data is not published on its own portal. datosabiertos.unal.edu.co is a static informational pa...30.2 Voi GBFS APIA flavored implementation of the General Bikeshare Feed Specification for Voi's dockless fleet, supporting ...30.2 Western University Repository on Borealis — Dataverse API (tenant)Western's research data repository, a Dataverse collection with alias "westernu" and affiliation "Western U...29.9 NGED Connected Data DCAT CatalogueMachine-readable DCAT catalogue exports of the entire NGED Connected Data Portal, linked from the footer of...29.8 NGED Connected Data Portal APIThe public CKAN 2.9.8 Action API behind National Grid Electricity Distribution's Connected Data Portal, doc...29.8 Caltech Library FeedsA metadata service built and operated by Caltech Library (v1.6), harvesting its institutional repositories,...29.6 CaltechDATA OAI-PMHOAI-PMH 2.0 metadata harvesting endpoint for CaltechDATA. Verified live 2026-08-19 via the Identify verb (r...29.6 Department of State Open Data CatalogThe Department's Project Open Data catalog, served as a single machine-readable DCAT-US 3.0 document at htt...29.6 EXIM Digital Archives (CONTENTdm / IIIF)26 collections of EXIM's historical record — annual reports, press releases, board materials, executive ord...29.6 EXIM Open Data CatalogEXIM's entire programmatic open-data footprint: a Project Open Data v1.1 (DCAT-US) catalog at data.json lis...29.6 IRSA Virtual Observatory APIs (Caltech/IPAC)The NASA/IPAC Infrared Science Archive exposes IVOA-standard Virtual Observatory interfaces — Table Access ...29.6 NASA Exoplanet Archive TAP (Caltech/IPAC)The NASA Exoplanet Archive, operated by Caltech/IPAC, exposes an IVOA TAP service over its confirmed-planet...29.6 NED Table Access Protocol (Caltech/IPAC)The NASA/IPAC Extragalactic Database, operated by Caltech/IPAC, exposes an IVOA TAP service over its extrag...29.6 Office of the Historian Ebook Catalog APIA RESTful, OPDS Catalog 1.1 feed of the Foreign Relations of the United States series — the official docume...29.6 State Department Open Data on data.govPublic datasets published by the State Department through the federal open-data catalog.29.6 USACE Open DataThe USACE Open Data program provides public access to geospatial data, regulatory permit information, and o...29.6 Open Data @ UCLouvain -- Dataverse deployment (Native + Search API)Open Data @ UCLouvain is the institution's research-data repository, running Dataverse 6.8 on UCLouvain inf...29.5 Open Data @ UCLouvain Dataverse OAI-PMHOAI-PMH 2.0 metadata-harvesting endpoint for the UCLouvain research-data repository. Identify returns repos...29.5 College Scorecard APIThe College Scorecard API, operated by the U.S. Department of Education via api.data.gov, exposes instituti...29.2 Datahub Tec de Monterrey — Dataverse Research Data Repository APIThe institution's research open-data repository, run by the Institute for the Future of Education on the in...29.1 Datahub Tec de Monterrey — OAI-PMH Metadata Harvesting EndpointOAI-PMH 2.0 harvesting endpoint for the Tecnológico de Monterrey Dataverse OAI Archive, re-verified live on...29.1 NIST Data GatewayProvides access to NIST's scientific and technical databases across multiple domains.29.1 Sapienza Library System Open Data & Linked Data (dormant)Open-data and linked-data publishing project of the Sistema Bibliotecario Sapienza, on the institution's ow...29.1 ASU Library Research Data Repository API (Dataverse)The ASU Library Research Data Repository runs on the open-source Dataverse platform, on ASU's own host, fro...28.7 OpenCorporatesData on corporate entities and directors in many countries28.7 BBVA Locations APIOpen data API providing access to BBVA branch and ATM location data. Available for Spain and Mexico, this A...28.2 Essential Energy Hosting Capacity Feature ServicesAnonymous ArcGIS REST FeatureServer endpoints publishing Essential Energy's distributed energy resource hos...28.2 Essential Energy Network Asset Feature ServicesAnonymous, key-free ArcGIS REST FeatureServer endpoints publishing Essential Energy's physical distribution...28.2 Essential Energy Network Planning and DAPR Feature ServicesAnonymous ArcGIS REST FeatureServer tables and layers publishing Essential Energy's regulated network plann...28.2 NYISO MIS Public Data ArchiveNYISO's Market Information System public archive - the operator's flagship open data surface. Roughly sixty...28.2 NYISO OASIS PostingsNYISO's Open Access Same-Time Information System (OASIS) node, the FERC Order 889/890 transmission-service ...28.2 Recherche Data Gouv Dataverse — sorbonne-univ collectionSorbonne University's research-data collection on the French national Recherche Data Gouv repository, addre...27.7 Commerce Data Hub Open Data Portal APIThe Commerce Data Hub Open Data Portal API (version 2.3) provides REST access to the Department of Commerce...27.4 TheCocktailDB APIFree cocktail and drinks recipe database with a REST API providing drink recipes, ingredients, glass types,...27.2 Australian Civil Aircraft Register Data FilesThe complete Australian Civil Aircraft Register published as a daily comma-delimited data file (acrftreg.cs...27.1 CASA Airworthiness Directives Data FilesOpen, unauthenticated bulk data files covering every current Australian Airworthiness Directive (AD). combi...27.1 PokéAPI GraphQL APIHasura-powered GraphQL interface to the complete PokéAPI dataset, providing flexible queries over Pokémon s...27.0 SSA OASDI Open Data APIProvides statistics on Old Age, Survivors, and Disability Insurance (OASDI) beneficiaries including counts ...27.0 UniversiDATA CKAN Dataset APICKAN-compatible metadata API of the UniversiDATA consortium platform, supporting current_package_list_with_...27.0 UniversiDATA DataStore APIDataStore query API of UniversiDATA, the DKAN open-data platform shared by five Spanish public universities...27.0 UniversiDATA DCAT Catalog APIDCAT catalogue endpoint of UniversiDATA, addressed per participating university by acronym. The UCM catalog...27.0 ENMAX Power System Capacity ArcGIS Feature ServicesThe machine-readable grid data behind ENMAX Power's public Hosting Capacity, Load Capacity and Service Area...26.8 Pod OCPI 2.2.1 CPO APIPod's Open Charge Point Interface (OCPI) 2.2.1 service in the Charge Point Operator role, used for e-mobili...26.7 CHRR Open Data Portal (CKAN)CKAN 2.10.10 open data portal operated by Ohio State's Center for Human Resource Research. The full CKAN Ac...26.6 Natural History Museum of Denmark Darwin Core Archive FeedsThe Natural History Museum of Denmark, a University of Copenhagen faculty museum, publishes thirteen Darwin...26.4 Cristin Research Information API (NTNU institution 194)Cristin is Norway's national Current Research Information System, operated by Sikt (the Norwegian Agency fo...26.2 DataverseNO — NTNU Research Data CollectionNTNU's research data is deposited into the "NTNU – Norwegian University of Science and Technology" collecti...26.2 Equal Access to Justice Act (EAJA) DatabaseACUS maintains an online database of Equal Access to Justice Act (EAJA) awards, tracking awards of attorney...26.2 Federal Administrative Adjudication DatabaseA joint project between ACUS and Stanford Law School, the Federal Administrative Adjudication Database prov...26.2 Federal Administrative Procedure Sourcebook APIThe Federal Administrative Procedure Sourcebook is ACUS's reference wiki covering the core statutes of U.S....26.2

Emerging 217 Early or largely undocumented

Minimal 79 Almost no public developer surface

Companies reaching this through an API (76)

These companies publish an API, specification or operation carrying “Open Data” but do not classify their business under it. Listed unranked and kept out of the count above, because one tagged operation is not a statement about what a company does.

Accela AEMO AESO Air France-KLM Alcohol and Tobacco Tax and Trade Bureau Amber Electric AmeriCorps Arizona State University arXiv BBVA BMW BrightAI Bureau of Consular Affairs Bureau of Indian Affairs CenterPoint Energy Chief Financial Officers Council CMS Energy CNCF Con Edison Coutts Deakin University Department of Energy Department of Interior Department of State DuckDuckGo ENMAX Erasmus University Rotterdam Farm Service Agency Federal Housing Finance Agency (FHFA) Federal Student Aid Hampden & Co Harvard University Hergert Synthora King's College London Kyushu University Linden Lab Lyft McGill University McMaster University MISO Nagoya University National Council on Disability National Institute of Standards and Technology (NIST) Pod Point Queen's University at Kingston Refinitiv Eikon Shipping.com SignSealShip Partner API Small Business Administration (SBA) Sorbonne University

Show all 76 companies ↓

Stanford University StatsBomb (Hudl) Surge AI Technical University of Munich UCL UK Open Banking University of Barcelona University of Birmingham University of California, Los Angeles University of Chile University of Florida University of Manchester University of Michigan-Ann Arbor University of Reading University of Southern California University of the Witwatersrand University of Toronto University of Waikato Université de Montréal USAID Vantor Voi Washington University in St. Louis Western University Wuhan University Zillow Group

Score breakdown

Frequency

82.3

log-scaled weighted occurrences

Breadth

14.5

spread across providers

Quality lift

32.3

mean composite of providers using it

Cohesion

37.9

strength of nearest seed neighbor

Where this tag sits

560 providers carry this tag directly, and 601 counting the 2 narrower tags below and the 3 beneath them — 41 more to reach.

Data Catalog 215 providers Government Data 207 providers

Where this tag comes from

Provider tag560

Api tag531

Openapi tag2

Openapi op tag5

Cohort brief

Auto-generated

The 554 providers in the APIs.io catalog tagged Open Data, scored on the Kin Score. Every figure below is computed from the catalog — nothing here is written.

Providers

554

all scored

Mean Kin Score

26.5

+3.6 vs catalog 22.9

Mean Agent Readiness

14.9

+3.0 vs catalog 11.9

Spread

3.4–80.6

median 25.3 · σ 14.8

How the 554 split by band

Exemplar 2Strong 19Developing 99Thin 150Emerging 201Minimal 83

Facet averages, against the whole catalog

Facet	This cohort	Catalog	Difference	Scored
Discoverability	64.3	58.1	+6.2	554
Contract Quality	23.6	17.6	+6	554
Operational Transparency	18.7	13.7	+5	554
Contract Governance	8.6	6.3	+2.3	554
Developer Ergonomics	24.8	23.2	+1.6	554
Access Clarity	27.3	26.5	+0.8	554

A facet is averaged over the members that carry it, not over the whole cohort — the “Scored” column is that count. Averaging an absent facet as zero would score our own coverage gaps as the providers’ posture.

What this cohort publishes

Artifact	This cohort	Catalog	Difference
MCP server (any)	5%	14%	-9
MCP server (first-party)	5%	12%	-7
Agent Skills	0%	0%	0
OAuth scopes	12%	11%	+1
Security	99%	98%	+1
Arazzo workflows	2%	2%	0
Governance rules	25%	14%	+11

mcp_pct counts any mcp/ artifact including ones API Evangelist derived from the provider OpenAPI; mcp_first_party_pct counts only servers the provider publishes. Prefer the latter.

Top by Kin Score

1 OpenMercantil 80.6
2 OpenSanctions 67.9
3 UK Power Networks 61.7
4 EPA — U.S. Environmental Protection Agency 60.7
5 La Poste Groupe 60.5
6 Plinth US Grants Data 60.5
7 University of Waterloo 60.4
8 Open Food Facts 60.1
9 GZW Data API 59.7
10 flatin.pt 59.4

Work with this as data

Every tag here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for tags

7 MCP tools reach this

find_tagsBrowse and filter every tag in the catalog.
get_cohortThis tag as a scored cohort — every provider carrying it, with scores.
cohort_statsPRO — the distribution across this tag: mean, median, band split, adoption rates.
cohort_rankingsPRO — the leaderboard, on composite AND agent-readiness axes.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

All 92 tools →

Call it yourself

curl for this page

This tag

curl "https://apis.io/api/v1/tags/open-data"

All tags

curl "https://apis.io/api/v1/tags?limit=25"

As a scored cohort

curl "https://apis.io/api/v1/cohorts/tag/open-data"

The distribution (Pro)

curl "https://apis.io/api/v1/cohorts/tag/open-data/stats" \
  -H "X-API-Key: $APIS_IO_KEY"

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