Free Public APIs for Developers and Agents
Free public web APIs that developers and AI agents can call. Entries come from the open public-apis list; each link was checked automatically (HTTP status) on the date shown, which says the site responded, not that the API is good.
Escape
An API for escaping different kind of queries
EstimateTax
US federal, state and local income tax calculation for 2026, with the source of every figure
Etherscan
Ethereum explorer API
Ethplorer
Ethereum tokens, balances, addresses, history of transactions, contracts, and custom structures
Etsy
Manage shop and interact with listings
EU VAT Rates by Commodity Code
EU VAT rates mapped to CN and CPA commodity codes, all 27 member states
Europe PMC
Life-science literature search with abstracts, citations and full-text links
Europeana
European Museum and Galleries content
EuroValidate
EU VAT (VIES), IBAN and EORI validation with company name & address lookup
Euskalmet
Meteorological data of the Basque Country
Eve Online
Third-Party Developer Documentation
Eventbrite
Find events
Evil Insult Generator
Evil Insults
ExactCup
Cooking ingredient densities: grams per US cup, tablespoon, teaspoon and mL
ExchangeRate-API
Free currency conversion
Exchangerate.dev
Live & historical FX, 168 pairs back to 1999, Frankfurter-compatible, free 10k/mo
Exchangerate.host
Foreign exchange & crypto rates API (keyless access ended 2023)
Exchangeratesapi.io
Exchange rates with currency conversion
EXMO
Cryptocurrencies exchange based in UK
ExtendsClass JSON Storage
A simple JSON store API
Face Shape Guide Lookup
Read-only lookup for published face-shape guide records
Facebook Login, Share on FB, Social Plugins, Analytics and more
Fair Draw
Verifiable random draws bound to the drand public randomness beacon
FakeJSON
Service to generate test and fake data
FakeStoreAPI
Fake store rest API for your e-commerce or shopping website prototype
FanLine Wire
Real-time FanDuel Sportsbook odds — live & in-play and pre-match, with a keyless public snapshot
FarmDash
DeFi intelligence, protocol risk, yield simulation plus 84 MCP agent tools, free Scout tier
FastballAPI
MLB since 2015 plus college baseball: pitches, plate appearances, box scores and sportsbook odds
FastSocial Instagram Data
Public Instagram data: profiles, posts, reels, stories, comments and a daily top-accounts ranking
FaturaPDF
Generate Brazilian invoice/receipt PDFs with checksum-validated CPF/CNPJ and PIX QR
Favicondl
Get any website's favicon by URL (SVG/PNG/ICO), with JSON metadata and fallbacks
FavQs.com
FavQs allows you to collect, discover and share your favorite quotes
FBI Wanted
Access information on the FBI Wanted program
FDA Import Alert Screening
Screen firm names against FDA Import Alert Red, Yellow and Green Lists
FDA Recalls
Latest FDA food, drug and product recall notices as JSON with keyword search
FEC
Information on campaign donations in federal elections
Fed Treasury
U.S. Department of the Treasury Data
Federal Register
The Daily Journal of the United States Government
Feedbin
RSS reader
FFXIV Collect
Final Fantasy XIV data on collectables
File.io
Super simple file sharing, convenient, anonymous and secure
Filestack
Filestack File Uploader & File Upload API
Filesystem
Read/write local files
FileUp
Temporary file hosting with upload API, expiration times, and view limits
Filingrail
SEC EDGAR filings, XBRL financials, Form 4 insider trades, 8-K events and 13F holdings
FilterLists
Lists of filters for adblockers and firewalls
Finage
Finage is a stock, currency, cryptocurrency, indices, and ETFs real-time & historical data provider
Final Fantasy XIV
Final Fantasy XIV Game data API
Final Space
Final Space API
Finance Clearly Tax Rates
Current UK and US tax rates, allowances and thresholds
Financial Modeling Prep
Realtime and historical stock data
FinBridge
Official-source financials, segments, valuation, peers and prices for KR, US, JP, TW companies
FindLocal
Hyper-local US events: concerts, trivia, open mics, readings, storytimes
FindSaunaPlunge
US cold plunge and sauna venues with dated, source-quoted temperatures and prices
Findwork
Job board
FingerprintJS Pro
Fraud detection API offering highly accurate browser fingerprinting
Finnhub
Real-Time RESTful APIs and Websocket for Stocks, Currencies, and Crypto
FishWatch
Information and pictures about individual fish species
Fitbit
Fitbit Information
Fixer
Exchange rates and currency conversion
flaky
Fake REST API with chaos controls: force any status code, add latency, or a failure rate
flatmark
Convert PDF, Word, PowerPoint, Excel and HTML documents to Markdown for RAG and agents
Flickr
Flickr Services
Flipkart Marketplace
Product listing management, Order Fulfilment in the Flipkart Marketplace
FloorGuard
Sourced prop firm daily-loss and max-drawdown rules, plus a drawdown-room check
Florida Man
Static JSON dataset of 10,000+ Florida Man headlines by date
Flowdash
Automate business workflows
FMI Open Data
Finnish weather, sea, climate and radar observations via open WFS
FOFA
Search engine for Internet connected assets and devices
Food Info
Nutrition data for millions of foods from six national food composition datasets
FoodData Central
National Nutrient Database for Standard Reference
Foodish
Random pictures of food dishes
Football
A simple Open Source Football API to get squads’ stats, best scorers and more
Football (Soccer) Videos
Embed codes for goals and highlights from Premier League, Bundesliga, Serie A and many more
Football Charts
Tables, results, model probabilities and Monte Carlo season projections for 93 leagues
Football Leagues
Standings, fixtures, live scores, lineups and player stats for 11 European football competitions
Football Standings
Display football standings e.g epl, la liga, serie a etc. The data is based on espn site
Football-Data
Football data with matches info, players, teams, and competitions
Foreca
Weather
Formfeed
Render PDFs and images from HTML (Jinja2, Liquid, Handlebars) or Word templates, with a free tier
Fortnite
Fortnite Stats
Foursquare
Interact with Foursquare users and places (geolocation-based checkins, photos, tips, events, etc)
Framejet
Website screenshot API with cookie banners and chat widgets removed; free tier
Frankfurter
Exchange rates, currency conversion and time series
FraudCoins
On-chain top-10 holder concentration and contract permissions for crypto tokens
FraudLabs Pro
Screen order information using AI to detect frauds
FRED
Economic data from the Federal Reserve Bank of St. Louis
Free Dictionary
Definitions, phonetics, pronunciations, parts of speech, examples, synonyms
Free Url Shortener
Free URL Shortener offers a powerful API to interact with other sites
freehire
Open-source search engine aggregating tech jobs from company ATS boards
Freelancer
Hire freelancers to get work done
Freesound
Music Samples
FreeToGame
Free-To-Play Games Database
French Address Search
Address search via the French Government
Front Accounting APIs
Front accounting is multilingual and multicurrency software for small businesses
Fruityvice
Data about all kinds of fruit
Fuck Off as a Service
Asks someone to fuck off
Full Contact
Get Social Media profiles and contact Information
FullHunt
Searchable attack surface database of the entire internet
Fulusly
Exchange rates for 144 currencies with daily history back to the 1990s, English and Arabic