APIs with OpenAPI specs

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

API	Category	Auth	Pricing	MCP	Free	Confidence
AI Dev Jobs aidevboard.com	Jobs	api_key	freemium	●	●	high
Amazon Scraper API amazonscraperapi.com	Developer Tools	api_key	freemium	●	●	high
ApogeoAPI apogeoapi.com	Geo & Location	api_key	freemium	●	●	high
BrewPage brewpage.app	Developer Tools	none	free	●	●	high
CoinPaprika API coinpaprika.com	Crypto & Blockchain	api_key	freemium	●	●	high
CPFHub cpfhub.io	Government	api_key	freemium	●	●	high
Exchangerate.dev exchangerate.dev	Finance	bearer_token	freemium	●	●	high
Frankfurter frankfurter.app	Finance	none	free	●	●	high
Geekflare API geekflare.com	Developer Tools	api_key	freemium	●	●	high
GitHub v3 REST API github.com	Other	bearer_token	free	●	●	high
IBANforge ibanforge.com	Finance	api_key	usage_based	●	●	high
InfraNode infranode.dev	Data & Enrichment	none	free	●	●	high
Memesio memesio.com	Other	api_key	freemium	●	●	medium
Not Human Search nothumansearch.ai	AI & Machine Learning	api_key	freemium	●	●	high
OpenQR openqr.uk	Developer Tools	bearer_token	freemium	●	●	high
OpenVan openvan.camp	Transport & Travel	none	free	●	●	high
paralelo.bo paralelo.bo	Finance	none	free	●	●	high
Sugra sugra.ai	Finance	api_key	freemium	●	●	medium
Suprsonic suprsonic.ai	Developer Tools	bearer_token	freemium	●	●	high
Telnyx API telnyx.com	Communication	bearer_token	usage_based	●	●	high
TheRundown therundown.io	Other	api_key	freemium	●	●	high
Twelve Data twelvedata.com	Finance	api_key	freemium	●	●	high
Urantia Papers API urantia.dev	Media & Content	none	free	●	●	high
Voidly voidly.ai	Data & Enrichment	none	freemium	●	●	medium
Webclaw webclaw.io	Developer Tools	bearer_token	freemium	●	●	high
xfetch xfetch.io	Social	bearer_token	freemium	●	●	high
Appwrite appwrite.io	Developer Tools	api_key	freemium	●	●	high
Buddy buddy.works	Developer Tools	oauth2	freemium	—	●	medium
CoinMarketCap API coinmarketcap.com	Crypto & Blockchain	api_key	freemium	●	●	medium
Country country.is	Geo & Location	none	free	—	●	high
DiscGolfAPI discgolfapi.com	Other	none	free	—	●	high
Edgrapi edgrapi.com	Finance	api_key	freemium	●	●	medium
Geocodio geocod.io	Geo & Location	api_key	usage_based	—	●	high
GoldBean goldbean-api.xyz	AI & Machine Learning	other	usage_based	●	●	medium
HackMyIP hackmyip.com	Geo & Location	none	free	—	●	high
Ideal Postcodes API ideal-postcodes.co.uk	Geo & Location	api_key	usage_based	—	●	high
Interzoid Convert Currency Rate API interzoid.com	Developer Tools	api_key	freemium	●	●	medium
Invovate invovate.com	Other	bearer_token	freemium	—	●	high
Noozra noozra.com	Media & Content	none	freemium	—	●	high
OpenMercantil openmercantil.es	Government	api_key	freemium	—	●	high
OpenSanctions opensanctions.org	Data & Enrichment	api_key	usage_based	●	●	low
PdfBroker.io pdfbroker.io	Media & Content	oauth2	freemium	●	●	high
PostStack poststack.dev	Communication	bearer_token	freemium	●	●	high
Pulsedive pulsedive.com	Security & Auth	api_key	freemium	—	●	medium
QuickChart API quickchart.io	Developer Tools	none	freemium	—	●	medium
QuizAPI quizapi.io	Other	api_key	freemium	—	●	high
ReqRes reqres.in	Developer Tools	api_key	freemium	—	●	high
REST Countries restcountries.com	Geo & Location	bearer_token	freemium	—	●	high
Slack Web API slack.com	Other	oauth2	freemium	—	●	high
Sunrise Sunset API sunrise-sunset.org	Health & Science	none	free	—	●	high
TensorFeed tensorfeed.ai	AI & Machine Learning	none	freemium	●	●	medium
TWZRD Agent Intel twzrd.xyz	Crypto & Blockchain	none	freemium	●	●	medium
UpRes upres.ai	Other	bearer_token	freemium	—	●	high
urlscan.io urlscan.io	Other	api_key	freemium	—	●	high
VeriRoute Intel verirouteintel.com	Other	api_key	usage_based	—	●	high
Warnely Developer API warnely.com	Data & Enrichment	none	free	—	●	high
WhereParcel whereparcel.com	Other	api_key	freemium	—	●	high
Zero Retention PDF (XeroPDF) xeropdf.com	E-commerce	api_key	usage_based	—	●	high
ZipCodeAPI zipcodeapi.com	Geo & Location	api_key	freemium	—	●	high
API.Bible api.bible	Media & Content	api_key	freemium	—	●	high
Api2Convert api2convert.com	E-commerce	api_key	usage_based	—	—	medium
Block Lottos blocklottos.com	Crypto & Blockchain	none	free	—	●	medium
Blockscout blockscout.com	Crypto & Blockchain	api_key	freemium	—	●	medium
Chomp Food Database API chompthis.com	Other	api_key	freemium	—	●	medium
Currents News API currentsapi.services	Media & Content	api_key	freemium	—	●	high
Listen API (Listen Notes Podcast API) listennotes.com	Other	api_key	freemium	—	●	medium
Mailsac mailsac.com	Other	api_key	freemium	—	●	medium
Domain Intelligence oti-labs.com	Security & Auth	api_key	freemium	—	●	high
Twilio REST API twilio.com	Communication	basic	usage_based	—	●	high
API2Cart api2cart.com	E-commerce	api_key	usage_based	—	●	medium
Apideck Accounting API apideck.com	Developer Tools	—	freemium	●	●	medium
The Jira Cloud platform REST API atlassian.com	Developer Tools	—	freemium	●	●	low
Cloudflare API cloudflare.com	Cloud & Infrastructure	bearer_token	—	●	—	medium
Storecove API storecove.com	Finance	bearer_token	contact_sales	—	●	medium
APIMATIC API Transformer apimatic.io	Developer Tools	—	freemium	—	●	medium
BulkSMS JSON REST API bulksms.com	Communication	—	usage_based	—	●	medium
Corrently.io corrently.io	Other	api_key	—	—	—	medium
Discord API discord.com	Social	other	—	—	—	medium
FaceCheck.ID Face Search API facecheck.id	Media & Content	—	usage_based	—	—	medium
Gemini Exchange API gemini.com	Crypto & Blockchain	api_key	—	—	—	medium
import.io import.io	Other	—	usage_based	—	●	low
LanguageTool API languagetool.org	Media & Content	api_key	freemium	—	—	low
Stripe API stripe.com	Finance	api_key	—	—	—	high
UniCourt Enterprise APIs unicourt.com	Data & Enrichment	—	contact_sales	—	●	low
Cat Facts catfact.ninja	Other	none	—	—	—	low
Musixmatch API musixmatch.com	Media & Content	api_key	—	—	—	medium
Phish.in phish.in	Media & Content	—	—	●	—	low
pingutil pingutil.com	Communication	api_key	—	—	●	low
PostalCodes postalcodes.info	Geo & Location	other	—	—	—	low
カラーミーショップアプリストア API shop-pro.jp	E-commerce	—	—	—	—	low