/API TERMS
API Terms/APIs with OpenAPI specs
Collection

APIs with OpenAPI specs

135 public APIs with a published OpenAPI/Swagger specification — verified against vendor docs, with a source URL on every claim. Sorted by record completeness.

APICategoryAuthPricingFree tierLimitsOpenAPIMCPChecked
AgentMailagentmail.toCommunicationBearer tokenfreemium✓✓✓✓2026-08-03
AI Dev Jobsaidevboard.comJobsAPI keyfreemium✓✓✓✓2026-07-08
Amazon Scraper APIamazonscraperapi.comDeveloper ToolsAPI keyfreemium✓✓✓✓2026-07-08
ApogeoAPIapogeoapi.comGeo & LocationAPI keyfreemium✓✓✓✓2026-07-12
Atomadic (AAAA-Nexus)atomadic.techCloud & InfrastructureAPI keyusage based✓✓✓✓2026-08-17
BrewPagebrewpage.appDeveloper Toolsno authfree✓✓✓✓2026-07-08
Browserless APIbrowserless.ioData & EnrichmentAPI keyfreemium✓✓✓✓2026-07-13
Coda API (Superhuman Docs API)coda.ioE-commerceBearer tokenfreemium✓✓✓✓2026-07-26
CoinPaprika APIcoinpaprika.comCrypto & BlockchainAPI keyfreemium✓✓✓✓2026-07-08
Conversor IAE CNAEconversoriaecnae.esGovernmentAPI keyfreemium✓✓✓✓2026-07-26
CPFHubcpfhub.ioGovernmentAPI keyfreemium✓✓✓✓2026-07-08
DocuQueuedocuqueue.comOtherAPI keyfreemium✓✓✓✓2026-08-17
Exchangerate.devexchangerate.devFinanceBearer tokenfreemium✓✓✓✓2026-07-08
Frankfurterfrankfurter.appFinanceno authfree✓✓✓✓2026-07-08
Geekflare APIgeekflare.comDeveloper ToolsAPI keyfreemium✓✓✓✓2026-07-08
GitHub v3 REST APIgithub.comDeveloper ToolsBearer tokenfree✓✓✓✓2026-07-12
Habit Pocket APIhabitpocket.ioE-commerceAPI keyfreemium✓✓✓✓2026-08-17
IBANforgeibanforge.comFinanceAPI keyusage based✓✓✓✓2026-07-08
InfraNodeinfranode.devData & Enrichmentno authfree✓✓✓✓2026-07-08
Memesiomemesio.comMedia & ContentAPI keyfreemium✓✓✓✓2026-07-08
Not Human Searchnothumansearch.aiAI & Machine LearningAPI keyfreemium✓✓✓✓2026-07-08
OpenQRopenqr.ukDeveloper ToolsBearer tokenfreemium✓✓✓✓2026-07-08
OpenVanopenvan.campTransport & Travelno authfree✓✓✓✓2026-07-08
paralelo.boparalelo.boFinanceno authfree✓✓✓✓2026-07-08
RankParserankparse.comMarketingAPI keyusage based✓✓✓✓2026-08-17
Social Fetchsocialfetch.devData & EnrichmentAPI keyusage based✓✓✓✓2026-07-27
Sugrasugra.aiFinanceAPI keyfreemium✓✓✓✓2026-07-12
Suprsonicsuprsonic.aiDeveloper ToolsBearer tokenfreemium✓✓✓✓2026-07-12
Telnyx APItelnyx.comCommunicationBearer tokenusage based✓✓✓✓2026-07-12
TheRundowntherundown.ioSports & FitnessAPI keyfreemium✓✓✓✓2026-07-12
Twelve Datatwelvedata.comFinanceAPI keyfreemium✓✓✓✓2026-07-12
Urantia Papers APIurantia.devMedia & Contentno authfree✓✓✓✓2026-07-12
Voidlyvoidly.aiData & Enrichmentno authfreemium✓✓✓✓2026-07-12
Webclawwebclaw.ioDeveloper ToolsBearer tokenfreemium✓✓✓✓2026-07-12
xfetchxfetch.ioSocialBearer tokenfreemium✓✓✓✓2026-07-12
AgentSkyagentsky.devDeveloper ToolsBearer tokenusage based✓✓✓n/d2026-08-17
AllMCPsallmcps.comDeveloper ToolsAPI keyfreemium✓n/d✓✓2026-08-17
Apify APIapify.comData & EnrichmentBearer tokenfreemium✓n/d✓✓2026-07-13
Appwriteappwrite.ioDeveloper ToolsAPI keyfreemium✓✓✓✓2026-07-08
Buddybuddy.worksDeveloper ToolsOAuth 2.0freemium✓✓✓n/d2026-07-08
CoinMarketCap APIcoinmarketcap.comCrypto & BlockchainAPI keyfreemium✓✓✓✓2026-07-08
Countrycountry.isGeo & Locationno authfree✓✓✓n/d2026-07-08
DiscGolfAPIdiscgolfapi.comSports & Fitnessno authfree✓✓✓n/d2026-07-08
Edgrapiedgrapi.comFinanceAPI keyfreemium✓n/d✓✓2026-07-08
FastDOLfastdol.comGovernmentAPI keyfreemium✓✓✓n/d2026-07-26
Fere AIfereai.xyzCrypto & BlockchainOAuth 2.0freemium✓n/d✓✓2026-08-03
General Computegeneralcompute.comAI & Machine LearningBearer tokenusage based✓n/d✓✓2026-07-27
Geocodiogeocod.ioGeo & LocationAPI keyusage based✓✓✓n/d2026-07-08
GoldBeangoldbean-api.xyzAI & Machine Learningotherusage based✓n/d✓✓2026-07-12
HackMyIPhackmyip.comGeo & Locationno authfree✓✓✓n/d2026-07-08
Ideal Postcodes APIideal-postcodes.co.ukGeo & LocationAPI keyusage based✓✓✓n/d2026-07-08
ImageAPI AIimageapiai.comAI & Machine LearningBearer tokenpaid✓n/d✓✓2026-08-17
Interzoid Convert Currency Rate APIinterzoid.comDeveloper ToolsAPI keyfreemium✓n/d✓✓2026-07-08
Invovateinvovate.comBusiness & CRMBearer tokenfreemium✓✓✓n/d2026-07-12
NewsData.ionewsdata.ioMedia & ContentAPI keyfreemium✓✓✓n/d2026-07-26
Noozranoozra.comMedia & Contentno authfreemium✓✓✓n/d2026-07-08
OpenMercantilopenmercantil.esGovernmentAPI keyfreemium✓✓✓n/d2026-07-08
OpenSanctionsopensanctions.orgData & EnrichmentAPI keyusage based✓n/d✓✓2026-07-26
P402.iop402.ioPaymentsBearer tokenfreemium✓n/d✓✓2026-08-03
PdfBroker.iopdfbroker.ioMedia & ContentOAuth 2.0freemium✓n/d✓✓2026-07-08
pingutil (EVA)pingutil.comCommunicationBearer tokenfree✓✓✓n/d2026-07-26
PostStackpoststack.devCommunicationBearer tokenfreemium✓n/d✓✓2026-07-08
Pulsedivepulsedive.comSecurity & AuthAPI keyfreemium✓✓✓n/d2026-07-08
QuickChart APIquickchart.ioDeveloper Toolsno authfreemium✓✓✓n/d2026-07-08
QuizAPIquizapi.ioGames & ComicsAPI keyfreemium✓✓✓n/d2026-07-08
Render APIrender.comCloud & InfrastructureBearer tokenfreemium✓n/d✓✓2026-07-13
Renderfyrenderfy.ioMedia & ContentBearer tokenfreemium✓✓✓n/d2026-08-17
ReqResreqres.inDeveloper ToolsAPI keyfreemium✓✓✓n/d2026-07-08
REST Countriesrestcountries.comGeo & LocationBearer tokenfreemium✓✓✓n/d2026-07-08
Slack Web APIslack.comDeveloper ToolsOAuth 2.0freemium✓✓✓n/d2026-07-12
Sunrise Sunset APIsunrise-sunset.orgHealth & Scienceno authfree✓✓✓n/d2026-07-12
TensorFeedtensorfeed.aiAI & Machine Learningno authfreemium✓n/d✓✓2026-07-12
TWZRD Agent Inteltwzrd.xyzCrypto & Blockchainno authfreemium✓n/d✓✓2026-07-12
UpResupres.aiMedia & ContentBearer tokenfreemium✓✓✓n/d2026-07-12
urlscan.iourlscan.ioSecurity & AuthAPI keyfreemium✓✓✓n/d2026-07-12
VeriRoute Intelverirouteintel.comOtherAPI keyusage based✓✓✓n/d2026-07-12
Warnely Developer APIwarnely.comData & Enrichmentno authfree✓✓✓n/d2026-07-12
WhereParcelwhereparcel.comMarketingAPI keyfreemium✓✓✓n/d2026-07-12
Zero Retention PDF (XeroPDF)xeropdf.comE-commerceAPI keyusage based✓✓✓n/d2026-07-12
ZipCodeAPIzipcodeapi.comGeo & LocationAPI keyfreemium✓✓✓n/d2026-07-12
API.Bibleapi.bibleMedia & ContentAPI keyfreemium✓n/d✓n/d2026-07-08
Api2Convertapi2convert.comE-commerceAPI keyusage basedn/d✓✓n/d2026-07-08
Blitappblitapp.comDeveloper ToolsAPI keypaid✓n/d✓n/d2026-07-26
Block Lottosblocklottos.comCrypto & Blockchainno authfree✓n/d✓n/d2026-07-08
Blockscoutblockscout.comCrypto & BlockchainAPI keyfreemium✓✓✓n/d2026-07-08
Chomp Food Database APIchompthis.comOtherAPI keyfreemium✓✓✓n/d2026-07-12
Currents News APIcurrentsapi.servicesMedia & ContentAPI keyfreemium✓✓✓n/d2026-07-08
GraphHopper Directions APIgraphhopper.comGeo & Locationn/dfreemium✓✓✓n/d2026-07-26
Image-Chartsimage-charts.comMedia & Contentotherfreemium✓n/d✓n/d2026-07-26
Jikan APIjikan.moeMedia & Contentno authfree✓n/d✓n/d2026-07-26
LaunchDarkly REST APIlaunchdarkly.comDeveloper ToolsAPI keyfreemium✓n/d✓✓2026-07-26
Lichess APIlichess.orgGames & ComicsOAuth 2.0free✓✓✓n/d2026-07-26
LinQRlinqr.appOtherOAuth 2.0n/d✓✓✓n/d2026-07-26
Listen API (Listen Notes Podcast API)listennotes.comMedia & ContentAPI keyfreemium✓n/d✓n/d2026-07-08
Mailsacmailsac.comDeveloper ToolsAPI keyfreemium✓✓✓n/d2026-07-12
Neotimoneotimo.comPaymentsn/dusage based✓n/d✓✓2026-07-26
Opper AIopper.aiAI & Machine LearningAPI keyusage basedn/d✓✓n/d2026-07-27
Domain Intelligenceoti-labs.comSecurity & AuthAPI keyfreemium✓n/d✓n/d2026-07-12
Phishinphish.inMedia & ContentAPI keyfreen/dn/d✓✓2026-07-26
PlanetScale APIplanetscale.comDeveloper ToolsOAuth 2.0freemiumn/dn/d✓✓2026-07-13
Resend APIresend.comCommunicationAPI keyfreemium✓n/d✓✓2026-07-13
Synarasynara.eventsCloud & InfrastructureAPI keyfreemium✓n/d✓n/d2026-08-10
Twilio REST APItwilio.comCommunicationBasic authusage based✓n/d✓n/d2026-07-12
WeatherAPIweatherapi.comWeatherAPI keyfreemium✓n/d✓✓2026-07-26
API2Cartapi2cart.comE-commerceAPI keyusage based✓n/d✓n/d2026-07-08
Apideck Accounting APIapideck.comDeveloper Toolsn/dfreemium✓n/d✓✓2026-07-08
Aqreoaqreo.comDeveloper Toolsn/dfreemium✓✓✓n/d2026-08-10
Bitbucket APIbitbucket.orgDeveloper ToolsOAuth 2.0freemiumn/dn/d✓n/d2026-07-26
Cloudflare APIcloudflare.comCloud & InfrastructureBearer tokenn/dn/d✓✓✓2026-07-12
Fly.io Machines APIfly.ioCloud & InfrastructureBearer tokenusage based✓n/d✓n/d2026-07-13
Irisnetirisnet.deAI & Machine LearningAPI keyusage basedn/dn/d✓n/d2026-07-26
Klaviyo APIklaviyo.comMarketingn/dfreemium✓n/d✓✓2026-07-16
RMCP.DEVrmcp.devOtherno authn/d✓n/d✓✓2026-07-25
Storecove APIstorecove.comFinanceBearer tokencontact sales✓n/d✓n/d2026-07-12
APIMATIC API Transformerapimatic.ioDeveloper Toolsn/dfreemium✓n/d✓n/d2026-07-08
Black History APIblackhistoryapi.ioData & EnrichmentAPI keyn/d✓n/d✓n/d2026-07-26
BulkSMS JSON REST APIbulksms.comCommunicationn/dusage based✓n/d✓n/d2026-07-08
Corrently.iocorrently.ioOtherAPI keyn/dn/d✓✓n/d2026-07-12
Discord APIdiscord.comSocialothern/dn/d✓✓n/d2026-07-12
FaceCheck.ID Face Search APIfacecheck.idMedia & Contentn/dusage basedn/dn/d✓n/d2026-07-08
Gemini Exchange APIgemini.comCrypto & BlockchainAPI keyn/dn/d✓✓n/d2026-07-08
Medcorder Nearby Doctor APImedcorder.comData & EnrichmentBearer tokencontact salesn/dn/d✓n/d2026-07-26
Stripe APIstripe.comFinanceAPI keyn/dn/d✓✓n/d2026-07-12
UniCourt Enterprise APIsunicourt.comData & Enrichmentn/dcontact sales✓n/d✓n/d2026-07-12
Cat Factscatfact.ninjaAnimalsno authn/dn/dn/d✓n/d2026-07-26
LibreTranslatelibretranslate.comMedia & ContentAPI keyn/dn/dn/d✓n/d2026-07-26
MailboxValidator Free Email Checkermailboxvalidator.comCommunicationn/dfreemium✓n/d✓n/d2026-07-26
Musixmatch APImusixmatch.comMedia & ContentAPI keyn/dn/dn/d✓n/d2026-07-08
NeoWs - (Near Earth Object Web Service)neowsapp.comData & EnrichmentAPI keyn/dn/dn/d✓n/d2026-07-26
PostalCodes.infopostalcodes.infoGeo & Locationothern/dn/dn/d✓n/d2026-07-26
VAT APIvatapi.comFinancen/dpaid✓n/d✓n/d2026-07-26
Spotify Web APIdeveloper.spotify.comMedia & ContentOAuth 2.0n/dn/dn/d✓n/d2026-07-16
Longevity World Cuplongevityworldcup.comHealth & Scienceno authn/dn/dn/d✓n/d2026-07-26
GitLabgitlab.comDeveloper Toolsn/dn/dn/dn/d✓n/d2026-07-26
カラーミーショップアプリストア APIshop-pro.jpE-commercen/dn/dn/dn/d✓n/d2026-07-12