Big List of Free and Open Public APIs (No Auth Needed)

by

An API (Application Programming Interface) allows you to send and receive data from a remote server, like querying a database. This is helpful when you're building an app or pulling metrics for reporting, because it means you can focus on presenting information in a unique or useful manner, rather than developing the underlying data set. For example, most weather apps get their weather forecast data from a weather API, rather than building weather stations themselves. For more detailed information on how APIs work, see here.

While most APIs require access via API keys (which are similar to passwords), or have complex methods of authentication, there are also quite a few APIs with no requirements at all. This is especially useful for beginners, as it means you can start exploring different APIs right away. It is also useful for web developers looking to access a sample data set for testing.

Big List of Free Open APIs

The APIs below can be accessed using any method:

  • your web browser (just click on the sample URLs to load them)
  • any modern coding language
  • cURL for the command line
  • no-code API clients like Swagger, Postman, or Insomnia
  • Mixed Analytics' own API Connector for Google Sheets
#CATEGORYAPI NAMEDESCRIPTIONSAMPLE URL
1API DirectoriesAPIs.guruOpenAPI API directoryhttps://api.apis.guru/v2/list.json
2API DirectoriesPublic APIsList of public APIshttps://api.publicapis.org/entries
3Art & ImagesArt Institute of ChicagoArtwork from the museumhttps://api.artic.edu/api/v1/artworks/search?q=cats
4Art & ImagesCOLOURloversColor trendshttps://www.colourlovers.com/api/colors/new?format=json
5Art & ImagesDiceBearGenerate random SVG avatarshttps://api.dicebear.com/6.x/pixel-art/svg
6Art & ImagesDogsRandom dog imageshttps://dog.ceo/api/breeds/image/random
7Art & ImagesHTTP CatsCat images for HTTP status codeshttps://http.cat/401
8Art & ImagesLorem PicsumPlaceholder imageshttps://picsum.photos/200/300
9Art & ImagesMetropolitan Museum of ArtArtwork from the museumhttps://collectionapi.metmuseum.org/public/collection/v1/objects/100
10Art & ImagesPHP-NoiseNoise background image generatorhttps://php-noise.com/noise.php?hex=FFFFFF&json
11Art & ImagesPlacebearPictures of bears for use as placeholdershttps://placebear.com/200/300
12Art & ImagesPlacekittenPlaceholder kitten imageshttp://placekitten.com/200/300
13Art & ImagesRandom DogRandom dog imageshttps://random.dog/woof.json
14Art & ImagesRandomFoxRandom pictures of foxeshttps://randomfox.ca/floof/
15Art & ImagesReSmushImage compression and optimizationhttp://api.resmush.it/ws.php?img=http://www.resmush.it/assets/images/jpg_example_original.jpg&qlty=95
16Art & ImagesRoboHashGenerate unique images from texthttps://robohash.org/onerobot.png
17Art & ImagesShibeRandom pictures of Shiba Inu dogshttps://shibe.online/api/shibes?count=10
18Art & ImagesVadivelu Status CodesHTTP Codes with imageshttps://vadivelu.anoram.com/gif/200
19CalendarNager.DatePublic holidayshttps://date.nager.at/api/v2/publicholidays/2020/US
20CalendarUK Bank HolidaysUK bank holidayshttps://www.gov.uk/bank-holidays.json
21Content4chan4chan's read-only APIhttps://a.4cdn.org/boards.json
22ContentAnime News NetworkAnime/manga encyclopediahttps://cdn.animenewsnetwork.com/encyclopedia/api.xml?title=4658
23ContentChronicling AmericaHistoric US newspapershttps://chroniclingamerica.loc.gov/newspapers.json
24ContentCrossrefScholarly metadatahttps://api.crossref.org/journals?query=pharmacy+health
25ContentHackerNewsHacker News APIhttps://hacker-news.firebaseio.com/v0/item/8863.json
26ContentJikanUnofficial MyAnimeList APIhttps://api.jikan.moe/v4/anime?q=naruto
27ContentListlyTop 10 listshttps://list.ly/api/v4/meta?url=http://google.com
28ContentMediawikiWikipedia page content and revisionshttps://en.wikipedia.org/w/api.php?action=query&prop=revisions&titles=Pet_door&rvprop=content&format=json
29ContentOpen LibraryBooks and book-related datahttps://openlibrary.org/search.json?q=the+lord+of+the+rings
30ContentRedditPublic content from Reddithttps://www.reddit.com/r/Wallstreetbets/top.json?limit=10&t=year
31ContentReddit StocksTop stocks from Wallstreetbetshttps://tradestie.com/api/v1/apps/reddit
32ContentRick and MortyRick and Morty charactershttps://rickandmortyapi.com/api/character/108
33ContentSWAPIStar Wars informationhttps://swapi.dev/api/planets/3/?format=json
34ContentTVMazeTV show informationhttp://api.tvmaze.com/search/shows?q=golden girls
35ContentWolne LekturySearch ebooks from wolnelektury.plhttps://wolnelektury.pl/api/authors/edgar-allan-poe/
36ContentWordPressPosts from any public WordPress sitehttps://techcrunch.com/wp-json/wp/v2/posts?per_page=100&context=embed
37Crypto & FinanceBinance24 hr crypto datahttps://api4.binance.com/api/v3/ticker/24hr
38Crypto & FinanceCoinBaseCurrency codes and nameshttps://api.coinbase.com/v2/currencies
39Crypto & FinanceCoinCapReal time cryptocurrency priceshttps://api.coincap.io/v2/assets
40Crypto & FinanceCoinDeskBitcoin price indexhttps://api.coindesk.com/v1/bpi/currentprice.json
41Crypto & FinanceCoinGeckoCryptocurrency market datahttps://api.coingecko.com/api/v3/coins/markets?vs_currency=usd
42Crypto & FinanceCoinLoreCryptocurrency market datahttps://api.coinlore.net/api/tickers/
43Crypto & FinanceCoinMapCrypto ATMshttps://coinmap.org/api/v1/venues/
44Crypto & FinanceCoinpaprikaCryptocurrency datahttps://api.coinpaprika.com/v1/coins/btc-bitcoin
45Crypto & FinanceCoinStatsCryptocurrency market datahttps://api.coinstats.app/public/v1/markets?coinId=bitcoin
46Crypto & FinanceCurrency RatesCurrency exchange rateshttps://cdn.jsdelivr.net/gh/fawazahmed0/currency-api@1/latest/currencies/eur.json
47Crypto & FinanceDEX ScreenerBlockchain screenerhttps://api.dexscreener.com/latest/dex/search?q=WBNB%20USDC
48Crypto & FinanceExchangerateCurrency exchange & crypto rateshttps://api.exchangerate.host/latest
49Crypto & FinanceExchangeRate-APIExchange rateshttps://open.er-api.com/v6/latest/USD
50Crypto & FinanceGeckoTerminalCrypto datahttps://api.geckoterminal.com/api/v2/networks
51Crypto & FinanceGeminiCryptocurrency market datahttps://api.gemini.com/v2/ticker/btcusd
52Crypto & FinanceKrakenCrypto datahttps://api.kraken.com/0/public/Trades?pair=ltcusd
53Crypto & FinanceKuCoinCrypto datahttps://api.kucoin.com/api/v1/market/stats?symbol=BTC-USDT
54Crypto & FinanceNBP WebCurrency exchange rates and gold priceshttp://api.nbp.pl/api/cenyzlota/last/30/?format=json
55Crypto & FinanceNexchangeCryptocurrency market datahttps://api.n.exchange/en/api/v1/price/btcusd/history/?hours=0.1&data_points=3&market_code=nex
56Crypto & FinanceOKXCryptocurrency market datahttps://www.okx.com/api/v5/market/tickers?instType=SPOT
57Crypto & FinanceRazorpay IFSCIndian Financial Systems Codeshttps://ifsc.razorpay.com/YESB0DNB002
58Crypto & FinanceWazirXCrypto datahttps://api.wazirx.com/sapi/v1/tickers/24hr
59Developer ToolsAgifyPredict age based on a namehttps://api.agify.io?name=bella
60Developer ToolsAPIC AgentDetect browser, OS, and device from user agenthttps://api.apicagent.com/?ua=Mozilla/5.0%20(Macintosh;%20Intel%20Mac%20OS%20X%2010_15_5)%20AppleWebKit/537.36%20(KHTML,%20like%20Gecko)%20Chrome/89.0.4389.114%20Safari/537.36
61Developer ToolsArul's Public APIsGet IP addresshttps://api.aruljohn.com/ip/json
62Developer ToolsCloudflare TraceGet IP address, user agent, etchttps://1.1.1.1/cdn-cgi/trace
63Developer ToolsDigital Ocean StatusDigitalOcean statushttps://status.digitalocean.com/api/v2/summary.json
64Developer ToolsFavicon GrabberGet the favicon for any sitehttps://favicongrabber.com/api/grab/github.com
65Developer ToolsFilterListsLists of filters used by ad blockershttp://filterlists.com/api/directory/lists
66Developer ToolsGenderize.ioPredict gender based on a namehttps://api.genderize.io?name=scott
67Developer ToolsGoogle FaviconsGoogle's unofficial favicon fetcherhttps://www.google.com/s2/favicons?domain=quora.com&sz=32
68Developer ToolsgoQRCreate and read QR codeshttp://api.qrserver.com/v1/create-qr-code/?data=https://mixedanalytics.com&size=100x100
69Developer ToolsHTTPBinInspect user agent and headershttp://httpbin.org/get
70Developer ToolsImage-ChartsChart imageshttps://image-charts.com/chart?cht=p3&chs=700x100&chd=t:60,40&chl=Hello|World&chan&chf=ps0-0,lg,45,ffeb3b,0.2,f44336,1|ps0-1,lg,45,8bc34a,0.2,009688,1
71Developer ToolsIPifyGet public IP addresshttps://api.ipify.org?format=json
72Developer Toolsis.gdURL shortenerhttps://is.gd/create.php?format=simple&url=www.example.com
73Developer ToolsMicrolinkRetrieve metadata and screenshots from any URLhttps://api.microlink.io/?url=https://github.com/microlinkhq
74Developer ToolsNationalize.ioPredict nationality based on a namehttps://api.nationalize.io?name=michael
75Developer ToolsQuickChartGenerate charts on-the-flyhttps://quickchart.io/chart?c={type:'bar',data:{labels:[2019,2020,2021,2022, 2023],datasets:[{label:'Users',data:[120,60,50,180,120]}]}}
76Developer ToolsSerialif ColorGet colors in different formatshttps://color.serialif.com/aquamarine
77Developer ToolsshrtcodeURL shortenerhttps://api.shrtco.de/v2/shorten?url=example.org/very/long/link.html
78Developer ToolsUn-ShortenUnshorten shortened URLshttps://unshorten.me/json/goo.gl/IGL1lE
79Developer ToolsURLhausReceive and submit malware URLshttps://urlhaus-api.abuse.ch/v1/urls/recent/limit/3/
80Food & DrinkCocktail DatabaseCocktail recipeshttps://www.thecocktaildb.com/api/json/v1/1/search.php?s=margarita
81Food & DrinkOpen Brewery DBBrewerieshttps://api.openbrewerydb.org/breweries
82Food & DrinkOpen Food FactsData on food productshttps://world.openfoodfacts.org/api/v0/product/737628064502.json
83Food & DrinkPunkAPIBeer recipeshttps://api.punkapi.com/v2/beers
84Food & DrinkWhisky HunterWhisky auctionshttps://whiskyhunter.net/api/auctions_data/?format=json
85Fun & GamesAmiiboAPINintendo Amiibo databasehttps://www.amiiboapi.com/api/amiibo/?name=mario
86Fun & GamesBarterDigital game libraries, wishlists and tradableshttps://barter.vg/browse/cards/json
87Fun & GamesBoard Game GeekBoard gameshttps://boardgamegeek.com/xmlapi/search?search=frika
88Fun & GamesBoredActivity suggestionshttps://www.boredapi.com/api/activity
89Fun & GamesCheapSharkPrice comparison for digital gameshttps://www.cheapshark.com/api/1.0/deals?upperPrice=15
90Fun & GamesChuck Norris JokesChuck Norris factshttps://api.chucknorris.io/jokes/random
91Fun & GamesD&D 5th EditionOfficial 5th Edition of Dungeons & Dragonshttps://www.dnd5eapi.co/api/features
92Fun & GamesDeck of CardsSimulate a deck of cardshttps://deckofcardsapi.com/api/deck/new/shuffle/?deck_count=1
93Fun & GamesEvil Insult GeneratorGenerate insultshttps://evilinsult.com/generate_insult.php?lang=en&type=json
94Fun & GamesFreeToGameFree-to-play gameshttps://www.freetogame.com/api/games?platform=pc
95Fun & GamesGamerpowerFree games and giveawayshttps://www.gamerpower.com/api/giveaways?platform=steam&type=loot&sort-by=popularity
96Fun & GamesHyrule CompendiumThe Legend of Zelda: BOTWhttps://botw-compendium.herokuapp.com/api/v2/entry/white-maned_lynel
97Fun & GamesicanhazdadjokeDad jokeshttps://icanhazdadjoke.com/
98Fun & GamesImgflipPopular memeshttps://api.imgflip.com/get_memes
99Fun & GamesisEvenCheck if a number is evenhttps://api.isevenapi.xyz/api/iseven/12/
100Fun & GamesJokeAPIJokeshttps://v2.jokeapi.dev/joke/Any?safe-mode
101Fun & GamesjServiceTrivia questions from Jeopardyhttp://jservice.io/api/random
102Fun & GamesMagic: The GatheringCards and sets from MTGhttps://api.magicthegathering.io/v1/sets
103Fun & GamesOfficial JokeJokeshttps://official-joke-api.appspot.com/random_joke
104Fun & GamesOpen Trivia DBTrivia questionshttps://opentdb.com/api.php?amount=10&category=17&difficulty=easy
105Fun & GamesPokéAPIPokémon datahttps://pokeapi.co/api/v2/pokemon/ditto
106Fun & GamesPokémon TCGPokémon card datahttps://api.pokemontcg.io/v2/cards/xy1-1
107Fun & GamesPunAPIPunshttps://www.punapi.rest/api/pun
108Fun & GamesRuneScapeRunescape datahttps://services.runescape.com/m=itemdb_rs/api/catalogue/items.json?category=9&alpha=c&page=1
109Fun & GamesScryfallMagic: The Gathering card datahttps://api.scryfall.com/cards/search?order=cmc&q=c:red%20pow=3
110Fun & GamesTCGdexPokémon card datahttps://api.tcgdex.net/v2/en/sets
111Fun & GamesXIVAPIFinal Fantasy XIVhttps://xivapi.com/Action/127
112Fun & Gamesxkcdxkcd comicshttp://xkcd.com/info.0.json
113Fun & GamesYes or No?Randomly generate a yes or no imagehttps://yesno.wtf/api
114GeoAdresseFrench addresses and geocodinghttps://api-adresse.data.gouv.fr/search/?q=8+bd+du+port
115GeoCountry.isLookup country by IP addresshttps://api.country.is/9.9.9.9
116GeoGeocodeForward/reverse geocodinghttps://geocode.xyz/51.50354,-0.12768?geoit=json
117GeoGeoJSGeolocation by IP addresshttps://get.geojs.io/v1/ip/geo.json
118GeogeoPluginCurrency conversion and geolocation datahttp://www.geoplugin.net/php.gp
119GeoGetTheDataUK geo coordinates conversionhttps://api.getthedata.com/bng2latlong/529090/179645
120GeoHelloSalutTranslate "hello" by IP addresshttp://stefanbohacek.com/hellosalut/?mode=auto
121GeoHong Kong GeoData StoreHong Kong geo datahttps://geodata.gov.hk/gs/api/v1.0.0/locationSearch?q=museums
122GeoipapiGeolocation by IP addresshttps://ipapi.co/json/
123GeoIPGeoGeolocation by IP addresshttps://api.techniknews.net/ipgeo/
124GeoKennzeichengeneratorAustrian district informationhttps://www.kennzeichengenerator.com/_api.bezirk.php?p=le
125GeoNominatumLocations and addresseshttps://nominatim.openstreetmap.org/search.php?city=taipei&format=jsonv2
126GeoOpen Topo DataDetermine elevation for lat/longhttps://api.opentopodata.org/v1/srtm90m?locations=-43.5,172.5|27.6,1.98&interpolation=cubic
127GeoPostcodesUK geo data by postcodehttps://api.postcodes.io/postcodes/OX49%205NU
128GeoViaCEPBrazil's postal address codes (CEPs)https://viacep.com.br/ws/01001000/json/
129GeoZippopotamusZip code information for 60 countrieshttps://api.zippopotam.us/us/90210
130GeoZiptasticUS geo data by zipcodehttps://ziptasticapi.com/90210
131GovernmentBanco Central Do BrasilBrazil Central Bank datahttps://api.bcb.gov.br/dados/serie/bcdata.sgs.20716/dados/ultimos/10?formato=json
132GovernmentBelgian Open Data InitiativeBelgian government open datahttps://social.brussels/rest/sector/5/organisations
133GovernmentBrasilBrazil public datahttps://brasilapi.com.br/api/feriados/v1/2024
134GovernmentCiviXLaw and bylaw content of British Columbiahttps://www.bclaws.gov.bc.ca/civix/search/complete/fullsearch?q=water&s=0&e=20&nFrag=5&lFrag=100
135GovernmentColorado Information MarketplaceColorado state open datahttps://data.colorado.gov/resource/4ykn-tg5h.json
136GovernmentData USAUS public datahttps://datausa.io/api/data?drilldowns=Nation&measures=Population
137GovernmentData.govU.S. government open datahttps://data.wa.gov/api/views/f6w7-q2d2/rows.json?accessType=DOWNLOAD
138GovernmentData.gov.auAustralian government open datahttps://www.data.act.gov.au/api/views/s4g9-ndv2/rows.json?accessType=DOWNLOAD
139GovernmentDawumGerman election pollshttps://api.dawum.de/
140GovernmentEuropean Commission Taxation and CustomsEuropan Comission taxeshttps://ec.europa.eu/taxation_customs/vies/rest-api/ms/DE/vat/122268496
141GovernmentFBI WantedFBI Wanted datahttps://api.fbi.gov/wanted/v1/list
142GovernmentFederal RegisterDaily journal of the US governmenthttps://www.federalregister.gov/api/v1/documents/2023-05167?publication_date=2023-03-14
143GovernmentFood Standards AgencyUK restaurant hygiene ratingshttps://ratings.food.gov.uk/OpenDataFiles/FHRS529en-GB.json
144GovernmentNYC Open DataNew York City open datahttps://data.cityofnewyork.us/resource/erm2-nwe9.json?unique_key=57056073
145GovernmentOpen Data DCWashington DC open datahttps://maps2.dcgis.dc.gov/dcgis/rest/services/DCGIS_DATA/Transportation_TrafficVolume_WebMercator/MapServer/171/query?where=1%3D1&outFields=ROUTEID,FROMMEASURE,TOMEASURE,FROMDATE,TODATE&outSR=4326&f=json
146GovernmentOpen Government, CanadaCanadian government open datahttps://donnees-data.tpsgc-pwgsc.gc.ca/br1/delaipaiement-promptpayment/delaipaiement-promptpayment.json
147GovernmentRepresent Civic InformationCanada's elected officials and electoral districtshttps://represent.opennorth.ca/representatives/?first_name=Jack
148GovernmentUSAspendingU.S. federal government spending datahttps://api.usaspending.gov/api/v2/references/toptier_agencies/
149GovernmentUSPTOUS Patent and Trademark Officehttps://assignment-api.uspto.gov/trademark/basicSearch?query=Google&filter_year=2022
150GovernmentWorld BankWorld Bank open datahttp://api.worldbank.org/v2/region?format=json
151HealthHealthCare.govUS health insurance datahttps://www.healthcare.gov/api/index.json
152HealthMakeupMakeup brands and product infohttp://makeup-api.herokuapp.com/api/v1/products.json?brand=maybelline
153HealthNPPESUS health care providershttps://npiregistry.cms.hhs.gov/api/?version=2.1&city=baltimore
154HealthOpen DiseaseCovid-19 and influenza statshttps://disease.sh/v3/covid-19/historical/all?lastdays=all
155HealthopenFDAFood & Drug Administration data (US)https://api.fda.gov/food/enforcement.json?limit=10
156InspirationAdvice SlipGenerate random advicehttps://api.adviceslip.com/advice/search/love
157InspirationAffirmationsGenerate affirmationshttps://www.affirmations.dev/
158InspirationBiriyana As a ServiceBiriyani imageshttps://biriyani.anoram.com/get
159InspirationDictumInspiring expressionshttps://api.fisenko.net/v1/quotes/en?query=string&offset=0&limit=0
160InspirationKanyeKanye quoteshttps://api.kanye.rest/
161InspirationQuotableRandom quoteshttps://api.quotable.io/quotes/random
162InspirationQuote GardenDatabase of 75000 quoteshttps://quote-garden.onrender.com/api/v3/quotes
163InspirationQuotes on DesignQuotes about designhttps://quotesondesign.com/wp-json/wp/v2/posts/?orderby=rand
164InspirationStoicism QuoteQuotes about stoicismhttps://api.themotivate365.com/stoic-quote
165LanguageChinese Character WebInformation about Chinese charactershttp://ccdb.hemiola.com/characters/radicals/85?count
166LanguageChinese Text ProjectDigital library for pre-modern Chinese textshttps://api.ctext.org/getdictionaryheadwords
167LanguageDatamuseQuery words matching conditionshttps://api.datamuse.com/words?ml=ringing+in+the+ears
168LanguageFree DictionaryWord definitions and phoneticshttps://api.dictionaryapi.dev/api/v2/entries/en/digital
169LanguagePurgoMalumCheck content for profanityhttps://www.purgomalum.com/service/json?text=this%20is%20some%20test%20input
170MusicBinary JazzFetch a random genrehttps://binaryjazz.us/wp-json/genrenator/v1/genre/5
171MusiciTunes SearchiTunes contenthttps://itunes.apple.com/search?term=radiohead
172MusicMusicBrainzMusic datahttp://musicbrainz.org/ws/2/artist/5b11f4ce-a62d-471e-81fc-a69a8278c7da?fmt=json
173MusicOpenwhydPlaylists from various streaming platformshttps://openwhyd.org/hot/electro?format=json
174Open DataArchive.orgLarge public digital archivehttps://archive.org/metadata/TheAdventuresOfTomSawyer_201303
175Open DataArul's Public APIsGet Costco gas prices in the DC areahttps://api.aruljohn.com/gas/costco/fairfax,woodbridge,sterling
176Open DataCarbon IntensityCarbon intensity of the electricity system in Great Britainhttps://api.carbonintensity.org.uk/intensity/date
177Open DataData.Police.UKUK crime & police datahttps://data.police.uk/api/crimes-street/all-crime?lat=52.629729&lng=-1.131592&date=2023-01
178Open DataHouse Stock WatcherUS Congress members' stock transactionshttps://house-stock-watcher-data.s3-us-west-2.amazonaws.com/data/all_transactions.json
179Open DataIceland companiesSearch the icelandic company registryhttps://apis.is/company?name=icelandair
180Open DataOpen LibraryInformation about bookshttp://openlibrary.org/api/volumes/brief/isbn/9780525440987.json
181Open DataPM2.5PM2.5 environmental data monitoringhttps://pm25.lass-net.org/API-1.0.0/project/airbox/latest/
182Open DataTeleportLocation and quality of life datahttps://api.teleport.org/api/urban_areas/teleport%3A9q8yy/scores/
183Open DataUniversities ListUniversitieshttp://universities.hipolabs.com/search?country=United+Kingdom
184Open DataVehiclesNational Highway Traffic Safety Administration's catalog of vehicles specshttps://vpic.nhtsa.dot.gov/api/vehicles/GetVehicleTypesForMake/merc?format=json
185Open DataWayback MachineInternet archive availabilityhttps://archive.org/wayback/available?url=google.com
186Open DataWikipediaPageview statshttps://wikimedia.org/api/rest_v1/metrics/pageviews/per-article/en.wikipedia/all-access/all-agents/Tiger_King/daily/20210901/20210930
187ScienceArcsecondWorldwide astronomy datahttps://api.arcsecond.io/activities/
188SciencearXivResearch-sharing platformhttp://export.arxiv.org/api/query?search_query=all:electron
189ScienceAsterankAsteroids, minor planets, and other objectshttp://www.asterank.com/api/skymorph/search?target=J99TS7A
190ScienceCat-FactsDaily cat factshttps://cat-fact.herokuapp.com/facts/random
191ScienceCelesTrakGeneral perturbations orbital datahttps://celestrak.org/NORAD/elements/gp.php?INTDES=2023-015&FORMAT=JSON-PRETTY
192ScienceGBIFGlobal Biodiversity Information Facilityhttps://api.gbif.org/v1/occurrence/search?year=1800,1899
193ScienceiDigBioDigitized data for millions of biological specimenshttps://search.idigbio.org/v2/search/records/?rq={"data.dwc:dynamicProperties":"nsf_tcn"}&limit=1
194ScienceInspirehepScholarly information about high energy physicshttps://inspirehep.net/api/literature/451647
195ScienceITISIntegrated Taxonomic Information Systemhttps://www.itis.gov/ITISWebService/services/ITISService/searchByCommonName?srchKey=ferret-badger
196ScienceNASANational Aeronautics and Space Administrationhttps://api.nasa.gov/neo/rest/v1/neo/browse?api_key=DEMO_KEY
197ScienceNewtonAdvanced mathhttps://newton.now.sh/api/v2/factor/x^2-1
198ScienceNumbersFacts about numbershttp://numbersapi.com/random/math
199ScienceOpen NotifyISS location and people in spacehttp://api.open-notify.org/astros.json
200ScienceSpaceflight NewsSpaceflight related newshttps://api.spaceflightnewsapi.net/v3/articles
201ScienceSpaceXLaunch and rocket datahttps://api.spacexdata.com/v5/launches/latest
202ScienceSunriseSunsetSunrise and sunset timeshttps://api.sunrisesunset.io/json?lat=38.907192&lng=-77.036873&timezone=UTC&date=today
203ScienceTheSpaceDevsRocket launches, space events and crewed spaceflighthttps://ll.thespacedevs.com/2.2.0/agencies/?limit=10
204ScienceUSGS Earthquake CatalogLatest earthquakeshttps://earthquake.usgs.gov/fdsnws/event/1/query?format=geojson&starttime=2023-03-01&endtime=2023-03-02&minmagnitude=5
205SportsBalldontlieNBA players, teams, games, statshttps://www.balldontlie.io/api/v1/teams
206SportsCityBikesBike sharing networkshttp://api.citybik.es/v2/networks
207SportsErgast F1Motor racing datahttp://ergast.com/api/f1/drivers.json
208SportsFootball-DataFootball (soccer) competitions and datahttp://api.football-data.org/v4/competitions/
209SportsnhlapiNHL datahttps://statsapi.web.nhl.com/api/v1/teams
210Test DataBacon IpsumGenerate fake data for testinghttps://baconipsum.com/api/?type=meat-and-filler
211Test DataCiprandGenerate random stringshttps://ciprand.p3p.repl.co/api?len=20&count=10
212Test DataFakerGenerate fake datahttps://fakerapi.it/api/v1/credit_cards?_quantity=2
213Test DataJSONPlaceholderFake REST API for testinghttps://jsonplaceholder.typicode.com/posts/1
214Test DataLoripsumGenerate fake placeholder texthttps://loripsum.net/api/10/short/headers
215Test DataRandomUserFake user data generatorhttps://randomuser.me/api/
216Test DataReqresTest against a real APIhttps://reqres.in/api/users?page=1
217Test DataRESTRest API for testinghttps://api.restful-api.dev/objects
218Test DataUUID GeneratorGenerate UUIDs and GUIDshttps://www.uuidtools.com/api/generate/v1/count/3
219TransportationDerhuerstPublic transport for Berlin & Brandenburghttps://v6.vbb.transport.rest/locations?query=berlin
220TransportationIceland flightslnternational flights departing and arriving at Keflavik Airporthttps://apis.is/flight?language=en&type=departures
221TransportationiRailBelgian railwayshttps://api.irail.be/vehicle/?id=BE.NMBS.IC1832&format=json&lang=en&alerts=false
222TransportationMBTAPublic transport for Bostonhttps://api-v3.mbta.com/route_patterns?filter[route]=CR-Providence&include=representative_trip&fields[trip]=headsign
223TransportationMetro LisboaSubway line statushttps://app.metrolisboa.pt/status/getLinhas.php
224Weather7Timer!Weather forecasts for astronomyhttp://www.7timer.info/bin/api.pl?lon=113.17&lat=23.09&product=astro&output=json
225WeatherAviation Weather CenterAviation Digital Data Service (ADDS) datahttps://www.aviationweather.gov/adds/dataserver_current/httpparam?datasource=metars&requestType=retrieve&format=xml&mostRecentForEachStation=constraint&hoursBeforeNow=1.25&stationString=KDE
226WeatheropenSenseMapPersonal senseBox (weather station) datahttps://api.opensensemap.org/boxes?model=homeWifi
227WeatherSG WeatherRealtime weather readings for Singaporehttps://api.data.gov.sg/v1/environment/air-temperature
228WeatherwttrConsole-oriented weather forecast servicewttr.in/London?format=3
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109 thoughts on “Big List of Free and Open Public APIs (No Auth Needed)”

    • Hey Ryan, thank you for that! And that's a really good tutorial. I've never seen that site before, just signed up now and am checking it out.

      Reply

      • Thank you. It is a real cool site with over 5 million users. Maybe you can share some of your codes with us on this site 🙂

  4. Actually this is very nice !!!! I am searching for fun and free api's for a long time, this is like a crystal clear of what I exactly need !!! keep it up man .....Good Work!!!!!

    Reply

  9. Thank you, thank you, THANK YOU for this list.
    I often need an API for testing something simple. Surprisingly (or unsurprisingly) hard to find many that don't need a registration+key.
    So thank you for this list. It is gold!

    Reply

  12. thanks guys i love this page it helps me alot, please is there any api on reators without key? thanks for any positive reply.

    Reply

  23. Hello

    This is great and useful thanks. However do you have any where I can use Key and Secret's to test api connectivity with high security which is more common these days?

    Reply

  25. I just briefly tested the "Jokes" API and it immediately presented a racist joke. I did this during a class. You should reconsider listing that as a resource.

    Reply

  27. Ana, we develop mission-critical environmental conservation apps for NGOs. Using Appsheet. New to APIs. Need access to soil and ecoregion data. Soil data from SSURGO and ecoregion data from US EPA. Should be possible. Can you find SSURGO APIs?

    Reply

    • Hey Mark! I would just Google "SSURGO APIs" and see if any of the results look like what you're looking for. I tried and see several results, but since I don't have any background knowledge, I can't really evaluate their quality or relevance.

      Reply

  28. Thank you for the list!

    Just to raise it to your attention, the pixelencounter link actually is a duplicate link to the openFDA site from above. Just thought you might want to fix it at some point. Otherwise the list is great!

    Reply

  40. Hi Ana,
    Thank you for the list. I just wanted to know if there is any API that i can test for free which can send a zip file as a response. I am doing a POC and i need to confirm the zip file flow.

    Reply

  52. Hi, Thank you for providing this list of APIs, it looks really good. I believe you should also include (www.ipstack.com), which offers geolocation API and global IP database services globally.

    Reply

    • You can find these by searching for "identity verification api" but I don't know of any free or open APIs for this, as far as I can see they are all enterprise solutions.

      Reply

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