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Best free APIs in 2026

Every category in the public-apis list, ranked. Positions come from daily health checks (uptime and response time), how easy each API is to start with, and ratings from developers.

Best Development APIs

  1. 1. Icanhazip
  2. 2. Index Agentica
  3. 3. Open VSX

Best Government APIs

  1. 1. Bidledger
  2. 2. Ayes and Noes
  3. 3. Brazil

Best Games & Comics APIs

  1. 1. L2 Calendar
  2. 2. Astroworld
  3. 3. Barter.VG

Best Geocoding APIs

  1. 1. ipwhois
  2. 2. administrative-divisons-db
  3. 3. HackMyIP

Best Cryptocurrency APIs

  1. 1. DefiLlama
  2. 2. BitcoinYield
  3. 3. BlazePhoenix

Best Finance APIs

  1. 1. Econdb
  2. 2. Helium
  3. 3. Banking Access Index

Best Transportation APIs

  1. 1. AirportMiles
  2. 2. Aviation Safety Data
  3. 3. Can I enter

Best Open Data APIs

  1. 1. Microlink.io
  2. 2. OpenSanctions
  3. 3. PayCrunch

Best Sports & Fitness APIs

  1. 1. Ball Ranks
  2. 2. balldontlie
  3. 3. FanLine Wire

Best Security APIs

  1. 1. Presend
  2. 2. IPGuardian
  3. 3. IPLogs

Best Science & Math APIs

  1. 1. GBIF
  2. 2. Macrostrat
  3. 3. Chempirical

Best Social APIs

  1. 1. 4chan
  2. 2. Lanyard
  3. 3. SwarmMemo

Best Video APIs

  1. 1. Dune
  2. 2. Final Space
  3. 3. MCU Countdown

Best Machine Learning APIs

  1. 1. Modelfax
  2. 2. AI Economics Tools
  3. 3. Nonobench

Best Documents & Productivity APIs

  1. 1. DocStruct
  2. 2. TeamSort
  3. 3. AgentPay Doc Tools

Best Health APIs

  1. 1. FindSaunaPlunge
  2. 2. Longevity World Cup
  3. 3. Open Disease

Best Weather APIs

  1. 1. NASA POWER
  2. 2. Veabird
  3. 3. Open-Meteo

Best Business APIs

  1. 1. Legal Sandbox Georgia
  2. 2. Verif Entreprise FR
  3. 3. KontragentPro

Best Email APIs

  1. 1. Kickbox
  2. 2. mail.gw
  3. 3. mail.tm

Best Photography APIs

  1. 1. ObjectCut
  2. 2. Lorem Picsum
  3. 3. PlaceKeanu

Best Test Data APIs

  1. 1. AddressMock
  2. 2. DummyJSON
  3. 3. flaky

Best Jobs APIs

  1. 1. RemoteOK
  2. 2. Arbeitnow
  3. 3. Artificial Intelligence Jobs

Best Food & Drink APIs

  1. 1. BaconMockup
  2. 2. Daily Food Recalls
  3. 3. ExactCup

Best Music APIs

  1. 1. MusicBrainz
  2. 2. Radio Browser
  3. 3. Openwhyd

Best Art & Design APIs

  1. 1. 3DTexel
  2. 2. EmojiHub
  3. 3. Face Shape Guide Lookup

Best Environment APIs

  1. 1. kanari
  2. 2. Open-Meteo
  3. 3. Sähkön hinta nyt

Best Shopping APIs

  1. 1. BirkinBagStock
  2. 2. ARC
  3. 3. Marketplace Fee Data

Best Currency Exchange APIs

  1. 1. Currency-api
  2. 2. Daleelak
  3. 3. Fulusly

Best Personality APIs

  1. 1. kanye.rest
  2. 2. Zen Quotes
  3. 3. Astro Agents

Best Books APIs

  1. 1. Greenlit Books
  2. 2. KDP Intelligence
  3. 3. PoetryDB

Best News APIs

  1. 1. Florida Man
  2. 2. Noozra
  3. 3. Spaceflight News

Best Animals APIs

  1. 1. Dog Facts
  2. 2. Dog Facts
  3. 3. Cat Facts

Best Calendar APIs

  1. 1. caldays
  2. 2. CountdownsHQ
  3. 3. The Calendar

Best URL Shorteners APIs

  1. 1. GoTiny
  2. 2. 1pt
  3. 3. Git.io

Best Anime APIs

  1. 1. AnimeFacts
  2. 2. NekosBest
  3. 3. Trace Moe

Best Text Analysis APIs

  1. 1. Cloudmersive Natural Language Processing
  2. 2. eidosSpeech
  3. 3. GeoScore

Best Cloud Storage & File Sharing APIs

  1. 1. Pantry
  2. 2. FileUp
  3. 3. File.io

Best Entertainment APIs

  1. 1. Bucketlist Dream of the Day
  2. 2. Corporate Buzz Words
  3. 3. CosmyDay Astrology

Best Anti-Malware APIs

  1. 1. URLhaus
  2. 2. ScanMalware
  3. 3. NoPhishy

Best Blockchain APIs

  1. 1. Get Started with Web3
  2. 2. TWZRD Agent Intel
  3. 3. ClearTrace

Best Data Validation APIs

  1. 1. US Autocomplete
  2. 2. US Street Address
  3. 3. Attestwire

Best Dictionaries APIs

  1. 1. Random Lexicon
  2. 2. Wiktionary
  3. 3. WordSoHard

Best Vehicle APIs

  1. 1. Bike Reliability
  2. 2. ProblemsByVin
  3. 3. TransparentCars

Best Open Source Projects APIs

  1. 1. GitHub Contribution Chart Generator
  2. 2. GitHub ReadMe Stats
  3. 3. Metabase

Best Tracking APIs

  1. 1. PostalPinCode
  2. 2. WeCanTrack
  3. 3. WhereParcel

Best Phone APIs

  1. 1. Phone Specification
  2. 2. Veriphone
  3. 3. Cloudmersive Validate

Best Authentication & Authorization APIs

  1. 1. Auth0
  2. 2. MojoAuth
  3. 3. Warrant

Best Continuous Integration APIs

  1. 1. Bitrise
  2. 2. CircleCI
  3. 3. Travis CI

Best Programming APIs

  1. 1. Mintlify
  2. 2. Judge0 CE
  3. 3. Codeforces

Best Events APIs

  1. 1. FindLocal
  2. 2. SeatGeek
  3. 3. Ticketmaster

Best Patent APIs

  1. 1. USPTO
  2. 2. PatentsView
  3. 3. EPO