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Free APIs for Portfolio Projects

Portfolio projects need APIs that stay up while recruiters look. These are the highest-ranked APIs across categories, weighted toward uptime, HTTPS and easy access.

  1. 1Bidledger logo

    Bidledger API

    Online · 279 ms

    Every open public tender in the European Union, rebuilt daily from the official TED data.

    • No API key needed
    • Fast: 279 ms response
    • Callable from the browser (CORS)
    • HTTPS
    No authHTTPSCORS
  2. 2Dog Facts logo

    Dog Facts API

    Online · 342 ms

    Random dog facts. A free animals API by dukengn.github.io.

    • No API key needed
    • Fast: 342 ms response
    • Callable from the browser (CORS)
    • HTTPS
    No authHTTPSCORS
  3. 3Dog Facts logo

    Dog Facts API

    Online · 356 ms

    Random facts of Dogs. A free animals API by Dog API by kinduff.

    • No API key needed
    • Fast: 356 ms response
    • Callable from the browser (CORS)
    • HTTPS
    No authHTTPSCORS
  4. 4Econdb logo

    Econdb API

    Online · 802 ms

    Download economic and shipping data using Python.

    • No API key needed
    • Returns JSON at its URL
    • Callable from the browser (CORS)
    • HTTPS
    No authHTTPSCORS
  5. 5Icanhazip logo

    Icanhazip API

    Online · 278 ms

    The family of icanhaz sites help you get more information about your network connection.

    • No API key needed
    • Fast: 278 ms response
    • Callable from the browser (CORS)
    • HTTPS
    No authHTTPSCORS
  6. 6Index Agentica logo

    Index Agentica API

    Online · 382 ms

    Agent-first directory of skills, MCP servers, tools, protocols and APIs as JSON, markdown, llms.txt.

    • No API key needed
    • Fast: 382 ms response
    • Callable from the browser (CORS)
    • HTTPS
    No authHTTPSCORS
  7. 7ipwhois logo

    ipwhois API

    Online · 226 ms

    IP geolocation with country, city, coordinates, ISP, timezone and flag data.

    • No API key needed
    • Fast: 226 ms response
    • Callable from the browser (CORS)
    • HTTPS
    No authHTTPSCORS
  8. 8Microlink.io logo

    Microlink.io API

    Online · 378 ms

    Extract structured data from any website.

    • No API key needed
    • Fast: 378 ms response
    • Callable from the browser (CORS)
    • HTTPS
    No authHTTPSCORS
  9. 9NASA POWER logo

    NASA POWER API

    Online · 228 ms

    Global solar and weather data for energy and agriculture.

    • No API key needed
    • Fast: 228 ms response
    • Callable from the browser (CORS)
    • HTTPS
    No authHTTPSCORS
  10. 10Open VSX logo

    Open VSX API

    Online · 270 ms

    Search and access VS Code extensions from the Open VSX registry.

    • No API key needed
    • Fast: 270 ms response
    • Callable from the browser (CORS)
    • HTTPS
    No authHTTPSCORS
  11. 11OpenSanctions logo

    OpenSanctions API

    Online · 343 ms

    Data on international sanctions, crime and politically exposed persons.

    • No API key needed
    • Fast: 343 ms response
    • Callable from the browser (CORS)
    • HTTPS
    No authHTTPSCORS
  12. 12PayCrunch logo

    PayCrunch API

    Online · 278 ms

    US wages for 1,008 occupations and by state, from BLS OEWS May 2025, static JSON, CC BY 4.0.

    • No API key needed
    • Fast: 278 ms response
    • Callable from the browser (CORS)
    • HTTPS
    No authHTTPSCORS
  13. 13Presend logo

    Presend API

    Online · 399 ms

    Security and developer utility API -- malware, vulnerability, and domain checks, no signup.

    • No API key needed
    • Fast: 399 ms response
    • Callable from the browser (CORS)
    • HTTPS
    No authHTTPSCORS
  14. 14RubyGems logo

    RubyGems API

    Online · 360 ms

    Ruby gem metadata, versions, dependencies and search.

    • No API key needed
    • Fast: 360 ms response
    • Callable from the browser (CORS)
    • HTTPS
    No authHTTPSCORS
  15. 15Statically logo

    Statically API

    Online · 324 ms

    A free CDN for developers.

    • No API key needed
    • Fast: 324 ms response
    • Callable from the browser (CORS)
    • HTTPS
    No authHTTPSCORS
  16. 16BirkinBagStock logo

    BirkinBagStock API

    Online · 1011 ms

    Independent Hermès resale index: inventory, market prices, auction calendar and results.

    • No API key needed
    • Returns JSON at its URL
    • Callable from the browser (CORS)
    • HTTPS
    No authHTTPSCORS
  17. 17DefiLlama logo

    DefiLlama API

    Online · 178 ms

    Open and transparent DeFi data, TVL, coin prices, volumes, and yields.

    • No API key needed
    • Fast: 178 ms response
    • Callable from the browser (CORS)
    • HTTPS
    No authHTTPSCORS
  18. 18

    DocStruct API

    Online · 190 ms

    AI extraction of invoices, receipts, bank statements & contracts into structured JSON/CSV.

    • No API key needed
    • Fast: 190 ms response
    • Callable from the browser (CORS)
    • HTTPS
    No authHTTPSCORS
  19. 19GBIF logo

    GBIF API

    Online · 115 ms

    Global Biodiversity Information Facility. A free science & math API by gbif.org.

    • No API key needed
    • Fast: 115 ms response
    • Callable from the browser (CORS)
    • HTTPS
    No authHTTPSCORS
  20. 20Helium logo

    Helium API

    Online · 377 ms

    News with media bias scoring, balanced news synthesis, live market data, AI options pricing.

    • No API key needed
    • Fast: 377 ms response
    • Callable from the browser (CORS)
    • HTTPS
    No authHTTPSCORS
  21. 21L2 Calendar logo

    L2 Calendar API

    Online · 1046 ms

    Lineage 2 private servers list with names, websites, chronicles, rates and opening dates.

    • No API key needed
    • Returns JSON at its URL
    • Callable from the browser (CORS)
    • HTTPS
    No authHTTPSCORS
  22. 22Legal Sandbox Georgia logo

    Find verified legal specialists in Georgia from natural-language queries.

    • No API key needed
    • Returns JSON at its URL
    • Callable from the browser (CORS)
    • HTTPS
    No authHTTPSCORS
  23. 23Macrostrat logo

    Macrostrat API

    Online · 694 ms

    Geologic maps, rock columns and stratigraphy data.

    • No API key needed
    • Returns JSON at its URL
    • Callable from the browser (CORS)
    • HTTPS
    No authHTTPSCORS
  24. 24Modelfax logo

    Modelfax API

    Online · 328 ms

    LLM pricing, context windows and deprecation dates, schema-validated and updated daily.

    • No API key needed
    • Fast: 328 ms response
    • Callable from the browser (CORS)
    • HTTPS
    No authHTTPSCORS
  25. 25RemoteOK logo

    RemoteOK API

    Online · 861 ms

    Remote job board for digital nomads.

    • No API key needed
    • Returns JSON at its URL
    • Callable from the browser (CORS)
    • HTTPS
    No authHTTPSCORS
  26. 26TidyTools logo

    TidyTools API

    Online · 157 ms

    Web page to clean Markdown and AI crawler robots.txt checks, free without a key (rate limited).

    • No API key needed
    • Fast: 157 ms response
    • Callable from the browser (CORS)
    • HTTPS
    No authHTTPSCORS
  27. 27Veabird logo

    Veabird API

    Online · 587 ms

    Beach (sargassum, waves, hurricanes) and ski snow forecasts for 1,900+ resorts, no key.

    • No API key needed
    • Returns JSON at its URL
    • Callable from the browser (CORS)
    • HTTPS
    No authHTTPSCORS
  28. 28Verif Entreprise FR logo

    Verif Entreprise FR API

    Online · 699 ms

    French company checks by SIREN: status, insolvency (BODACC), VAT (VIES); free preview.

    • No API key needed
    • Returns JSON at its URL
    • Callable from the browser (CORS)
    • HTTPS
    No authHTTPSCORS
  29. 29221 logo

    221 API

    Online · 527 ms

    Senegal reference data: public holidays, mobile operators, banks, communes, legal forms.

    • No API key needed
    • Callable from the browser (CORS)
    • HTTPS
    No authHTTPSCORS
  30. 3024 Pull Requests logo

    24 Pull Requests API

    Online · 852 ms

    Project to promote open source collaboration during December.

    • No API key needed
    • Callable from the browser (CORS)
    • HTTPS
    No authHTTPSCORS
  31. 313DTexel logo

    3DTexel API

    Online · 764 ms

    Search free CC0 PBR materials, HDRIs, decals and 3D models for games.

    • No API key needed
    • Callable from the browser (CORS)
    • HTTPS
    No authHTTPSCORS
  32. 324chan logo

    4chan API

    Online · 667 ms

    Simple image-based bulletin board dedicated to a variety of topics.

    • No API key needed
    • Callable from the browser (CORS)
    • HTTPS
    No authHTTPSCORS
  33. 33AddressMock logo

    AddressMock API

    Online · 784 ms

    Random US, Hong Kong and Cape Verde addresses with matched city, state and ZIP.

    • No API key needed
    • Callable from the browser (CORS)
    • HTTPS
    No authHTTPSCORS
  34. 34administrative-divisons-db logo

    Get all administrative divisions of a country.

    • No API key needed
    • Callable from the browser (CORS)
    • HTTPS
    No authHTTPSCORS
  35. 35AI Economics Tools logo

    AI Economics Tools API

    Online · 612 ms

    Token cost, LLM energy, agent-hour and Proof-Adjusted Autonomy calculators by Michał Piszczek.

    • No API key needed
    • Returns JSON at its URL
    • Callable from the browser (CORS)
    • HTTPS
    No authHTTPSCORS
  36. 36AirportMiles logo

    AirportMiles API

    Online · 748 ms

    Airport codes, distances, routes and passenger numbers as static JSON files.

    • No API key needed
    • Callable from the browser (CORS)
    • HTTPS
    No authHTTPSCORS
  37. 37AnimeFacts logo

    AnimeFacts API

    Online · 1068 ms

    An API in Node.js that will return anime facts.

    • No API key needed
    • Callable from the browser (CORS)
    • HTTPS
    No authHTTPSCORS
  38. 38API Setu logo

    API Setu API

    Online · 1199 ms

    An Indian Government platform that provides a lot of APIS for KYC, business, education & employment.

    • No API key needed
    • Callable from the browser (CORS)
    • HTTPS
    No authHTTPSCORS
  39. 39ApicAgent logo

    ApicAgent API

    Online · 1108 ms

    Extract device details from user-agent string.

    • No API key needed
    • Callable from the browser (CORS)
    • HTTPS
    No authHTTPSCORS
  40. 40APIzone logo

    APIzone API

    Online · 513 ms

    Independent uptime & status monitoring for 200+ popular APIs.

    • No API key needed
    • Callable from the browser (CORS)
    • HTTPS
    No authHTTPSCORS
More lists: Free APIs for Testing · Free APIs for Beginners · Free APIs for Frontend Projects · Free APIs for Student Projects · Fun Free APIs · Free APIs for AI Projects · Free APIs for Discord Bots

FAQ

What are the best free apis for portfolio projects?

In 2026, the top picks are Bidledger API, Dog Facts API, Dog Facts API. This list ranks 40 reliable, well-documented APIs that make impressive developer portfolio projects, using daily uptime checks, ease of access and developer ratings.

Are these APIs really free?

Yes. Every API in the public-apis directory is free or has a free tier. Some need a free API key; the badges on each entry show which.