Free APIs With No API Key Required

Updated August 2026 · 83 APIs tracked · checked hourly

The fastest way to start building is an API that just works — no account, no email confirmation, no key to store. The 83 APIs below are all active, all require zero authentication, and all have live uptime data from our hourly checks. They span weather, finance, news, geocoding, and cryptocurrency. Ranked by composite score (60% uptime, 30% speed, 10% free-tier quality).

1. #1 PokéAPI 🟢 Online games

   Comprehensive RESTful Pokémon data API covering all 1,000+ Pokémon, moves, abilities, types, and evolution chains. A go-to for learning REST API consumption and building fan projects.

   Unlimited, no key, no credit card

2. #2 Blockchain.com Data API 🟢 Online cryptocurrency

   Free Bitcoin blockchain data API from Blockchain.com providing prices, stats, blocks, and transaction data. No key required.

   Unlimited, no key, no credit card

3. #3 Cloudflare Docs MCP 🟢 Online mcp

   Cloudflare's official docs MCP server — query Workers, D1, R2, KV, and Pages documentation with citations. No key required.

   Unlimited (fair use), no key, no credit card

4. #4 FreeAPI.watch MCP 🟢 Online mcp

   Our own MCP server: live uptime, response times, and free-tier terms for every API in this catalog, plus the graveyard of APIs that died. Lets an agent check that an API actually works before generating code against it. No key, no signup.

   Unlimited (fair use), no key, no credit card

5. #5 NOAA National Weather Service 🟢 Online weather

   Official US government weather API providing forecasts, alerts, and observations for US locations. No key required.

   Unlimited (US only), no key, no credit card

6. #6 CoinLore 🟢 Online cryptocurrency

   Free cryptocurrency data API with no key required, providing prices, market cap, and supply data for 10,000+ coins.

   Unlimited (rate-limited), no key, no credit card

7. #7 Rick and Morty API 🟢 Online entertainment

   REST and GraphQL API for the Rick and Morty animated series, including all characters, locations, and episodes. Commonly used in React/GraphQL tutorials and hackathon projects.

   10,000 req/day, no key, no credit card

8. #8 USGS Earthquake Catalog 🟢 Online public-data

   Official United States Geological Survey feed of global seismic events as GeoJSON, updated within minutes of detection, with magnitude, depth, and precise coordinates. Government-funded, so there is no monetisation pressure on the free tier.

   Unlimited, no key, no credit card

9. #9 Free Dictionary API 🟢 Online books

   Dictionary definitions, phonetics, synonyms, and audio pronunciation for English words (plus 12 other languages). Community-run wrapper over Wiktionary data.

   Unlimited (fair use), no key, no credit card

10. #10 Kraken Public API 🟢 Online cryptocurrency

    Public REST API for Kraken exchange providing ticker info, OHLC data, order book depth, and recent trades.

    Unlimited public data, no key required

11. #11 Postcodes.io 🟢 Online public-data

    UK postcode lookup and reverse geocoding built on Ordnance Survey open data, returning coordinates plus administrative, electoral, and NHS regions. Open-source and self-hostable.

    Unlimited, no key, no credit card

12. #12 European Central Bank Rates 🟢 Online finance

    Official ECB foreign exchange reference rates in XML format. Covers 30+ currencies with daily updates. No key required.

    Unlimited, no key, no credit card

13. #13 JokeAPI 🟢 Online entertainment

    Programmer, general, and dark-category joke API with safe-mode filtering, multiple languages, and both single-delivery and two-part joke formats. A favourite for chatbot demos and fun side projects.

    120 req/min, no key, no credit card

14. #14 DiceBear Avatars 🟢 Online dev-tools

    Avatar generation API — 30+ styles (identicons, pixel art, illustrated characters) generated deterministically from a seed string. Same seed always returns the same avatar.

    Unlimited (fair use), no key, no credit card

15. #15 JSONPlaceholder 🟢 Online dev-tools

    Fake REST API for testing and prototyping. Six resources (posts, comments, todos, users…) with full CRUD simulation. The default API in every frontend tutorial.

    Unlimited (fair use), no key, no credit card

16. #16 ip-api.com 🟢 Online geocoding

    Free IP geolocation API returning country, city, region, ISP, and coordinates for any IP address. No key required.

    45 calls/min (HTTP only), no key, no credit card

17. #17 TVmaze 🟢 Online entertainment

    TV show and episode database with air dates, cast, and full episode lists. No key at all for the public endpoints, which makes it the fastest way to prototype a TV-tracking app.

    No key, ~20 calls per 10 seconds, no credit card

18. #18 Open-Meteo Air Quality 🟢 Online weather

    Free air quality forecast API providing PM2.5, PM10, ozone, and other pollutant data worldwide. No key required.

    10,000 calls/day, no key, no credit card

19. #19 REST Countries 🟢 Online public-data

    Detailed data on all 250 countries including names, capitals, flags, currencies, languages, calling codes, and regional groupings. No key required and widely used in geography and education apps.

    Unlimited, no key, no credit card

20. #20 ipify 🟢 Online dev-tools

    The simplest public IP address API on the internet. One endpoint, returns your caller's public IP as text, JSON, or JSONP. Unlimited and free forever.

    Unlimited, no key, no credit card

21. #21 Nager.Date 🟢 Online dev-tools

    Public holidays API for 100+ countries — holiday names, dates, and types, plus long-weekend calculation and 'is today a holiday' checks. Open source, no key.

    Unlimited (fair use), no key, no credit card

22. #22 xkcd 🟢 Online entertainment

    The webcomic's own JSON endpoint — comic number, title, alt text, and image URL. Tiny, stable, and unchanged for over a decade, which makes it the standard smoke-test API for tutorials.

    Unlimited, no key, no credit card

23. #23 Sunrise Sunset API 🟢 Online public-data

    Sunrise, sunset, solar noon, and twilight times for any coordinates and date. Single-purpose and dependable — the standard companion to a weather integration.

    Unlimited, no key, no credit card

24. #24 Random User Generator 🟢 Online public-data

    Generates realistic random user profiles with names, addresses, photos, emails, and demographic data. Ideal for populating mockups, testing UI components, and seeding development databases.

    Unlimited, no key, no credit card

25. #25 FreeToGame 🟢 Online games

    Catalog of free-to-play PC and browser games with genre, platform, and publisher filters plus thumbnails and store links. Useful for game-discovery and recommendation projects.

    Unlimited, no key, no credit card

26. #26 Dog CEO 🟢 Online entertainment

    Random dog photographs indexed by breed and sub-breed, built on the Stanford Dogs Dataset. The canonical image-fetching exercise for teaching async requests.

    Unlimited, no key, no credit card

27. #27 chucknorris.io 🟢 Online entertainment

    Random Chuck Norris jokes with category filtering and free-text search. Trivial to integrate and a common first API in bootcamp curricula.

    Unlimited, no key, no credit card

28. #28 DEV Community API 🟢 Online news

    Official API for DEV.to providing access to articles, tags, and user profiles from the developer community platform.

    30 calls/30s unauthenticated, no key for reads

29. #29 Jikan (MyAnimeList) 🟢 Online entertainment

    Unofficial but well-maintained REST wrapper over MyAnimeList, serving anime and manga metadata, rankings, and seasonal charts without the OAuth dance MAL's own API requires.

    No key, 3 requests/second and 60/minute, no credit card

30. #30 Microsoft Learn MCP 🟢 Online mcp

    Official Microsoft MCP server — search and retrieve Microsoft/Azure documentation as grounded context for AI agents. No key, no signup.

    Unlimited (fair use), no key, no credit card

31. #31 Deck of Cards API 🟢 Online games

    Server-side playing-card deck: shuffle, draw, and manage piles with persistent deck IDs. Removes the need to model card state yourself when building a card game demo.

    Unlimited, no key, no credit card

32. #32 Open-Meteo 🟢 Online weather

    Free weather forecast API with no key required. 10,000 calls/day for non-commercial use.

    10,000 calls/day, no key, no credit card

33. #33 Blockchair API 🔴 Offline cryptocurrency

    Multi-blockchain explorer API supporting 17+ blockchains including Bitcoin, Ethereum, and Cardano with SQL-like queries.

    1,430 calls/day, no key (key extends limits)

34. #34 DummyJSON 🟢 Online dev-tools

    Fake REST data for products, carts, users, posts, and comments, with working pagination, search, and simulated auth. More realistic than JSONPlaceholder when you need a believable e-commerce shape.

    Unlimited, no key, no credit card

35. #35 Mempool.space API 🟢 Online cryptocurrency

    Open-source Bitcoin mempool and blockchain explorer API with fee estimates, block data, and transaction tracking.

    Unlimited, no key, no credit card

36. #36 Deezer API 🟢 Online music

    Public catalog data for artists, albums, tracks, and charts, with 30-second previews. The public read endpoints need no key, which is why it survived as a Spotify alternative after Spotify restricted audio-features for new apps in late 2024.

    No key for public catalog data; OAuth only for user data

37. #37 Bright Sky (DWD) 🟢 Online weather

    Open weather API built on German Weather Service (DWD) data covering all of Germany with no key required.

    Unlimited, no key, no credit card

38. #38 Zippopotam.us 🟢 Online public-data

    Postal-code lookup across 60+ countries returning place name, state, latitude, and longitude. The lightest way to turn a ZIP into coordinates without a geocoding key.

    Unlimited, no key, no credit card

39. #39 Wikipedia REST API 🟢 Online news

    Official Wikipedia API for retrieving article summaries, full text, featured content, and on-this-day events.

    Unlimited, no key, must set User-Agent

40. #40 Astro Docs MCP 🟢 Online mcp

    The Astro framework's official documentation MCP server — grounded answers about Astro APIs, integrations, and configuration. No key.

    Unlimited (fair use), no key, no credit card

41. #41 7Timer! 🟢 Online weather

    Free, no-key weather forecast API focused on astronomical and civil forecasts using NOAA GFS model data.

    Unlimited, no key, no credit card

42. #42 Coinbase Advanced Trade API (Public) 🟢 Online cryptocurrency

    Public endpoints of Coinbase for market data including real-time prices, order books, and candles for all listed assets.

    10 calls/sec, no key for public endpoints

43. #43 QR Server (goqr.me) 🟢 Online dev-tools

    QR code generation and decoding API. Construct a URL with your data and get a PNG/SVG QR code back — embeddable directly in img tags with no backend code.

    Unlimited (fair use), no key, no credit card

44. #44 TheSportsDB 🟢 Online sports

    Crowd-sourced sports database covering teams, players, fixtures, and results across football, basketball, motorsport, and more, with team badges and stadium imagery.

    Free test key for development; Patreon key required for production

45. #45 Open Food Facts 🟢 Online food

    Nonprofit database of 3 million+ packaged food products worldwide, searchable by barcode, with ingredients, allergens, Nutri-Score, and NOVA processing classification. The open answer to Nutritionix going paid-first.

    No key, fair-use limits, requires an identifying User-Agent

46. #46 Hacker News API 🟢 Online news

    Official Firebase-based Hacker News API providing real-time access to stories, comments, jobs, and user data.

    Unlimited, no key, no credit card

47. #47 TheMealDB 🟢 Online food

    Recipe database API — 300+ meals with ingredients, instructions, images, and category/area filters. The classic API for food app tutorials and hackathon projects.

    Free test key for development; supporter key for production

48. #48 Fake Store API 🟢 Online dev-tools

    Pretend e-commerce backend with products, categories, carts, and users — the standard fixture for building a storefront UI before a real backend exists.

    Unlimited, no key, no credit card

49. #49 Lyrics.ovh 🟢 Online music

    Plain-text song lyrics by artist and title. A community hobby project that exists because licensed APIs like Genius return only snippets — useful for prototypes, but treat availability and licensing as fragile.

    Unlimited, no key; unofficial hobby project with no SLA

50. #50 Datamuse 🟢 Online books

    Word-finding query engine: synonyms, rhymes, words that sound alike, and words related to a concept. Powers autocomplete, crossword helpers, and writing tools without a key.

    No key, 100,000 requests/day, no credit card

51. #51 Lobste.rs API 🟢 Online news

    Simple JSON API for the Lobste.rs technology-focused news aggregator, providing stories, comments, and user data.

    Unlimited, no key, no credit card

52. #52 TheCocktailDB 🟢 Online food

    Cocktail and drink recipe API — 600+ drinks with ingredients, measures, glass types, and images. Sister project of TheMealDB with the same access model.

    Free test key for development; supporter key for production

53. #53 Spaceflight News API 🟢 Online news

    Free API aggregating space and astronomy news from major outlets like NASA, ESA, SpaceX, and others.

    Unlimited, no key, no credit card

54. #54 MET Norway Locationforecast 🟢 Online weather

    Free weather forecast API from the Norwegian Meteorological Institute covering global locations. No key required.

    Unlimited, no key, must set User-Agent header

55. #55 GeoIP-db 🟢 Online geocoding

    Free IP geolocation API with no key required, returning country, city, state, latitude, and longitude for any IP.

    Unlimited, no key, no credit card

56. #56 Wikidata 🟢 Online public-data

    The structured knowledge base behind Wikipedia — machine-readable facts about 100 million+ entities, queryable by entity ID or through the SPARQL endpoint. A primary source that AI systems themselves are trained on.

    Unlimited, no key, requires an identifying User-Agent

57. #57 TheCatAPI 🟢 Online entertainment

    Cat images with breed metadata, filtering, and favourites. Works keyless for basic search; a free key unlocks higher limits and the breed-specific endpoints.

    Keyless for basic search; free key raises limits to 10,000/month

58. #58 Context7 MCP 🟢 Online mcp

    Upstash's Context7 — version-specific, up-to-date library documentation injected into AI prompts. The most-installed docs MCP server.

    Free without key; free API key raises rate limits

59. #59 Hugging Face MCP 🟢 Online mcp

    Official Hugging Face MCP server — search models, datasets, Spaces, and papers on the Hub from any MCP client. Anonymous access supported.

    Free anonymous access; free HF token unlocks user actions

60. #60 MusicBrainz 🟢 Online music

    The open music encyclopedia — artists, releases, recordings, and relationships, maintained by the MetaBrainz Foundation. The canonical free replacement for the discontinued Echo Nest and the shrinking Spotify metadata endpoints.

    No key, 1 request/second, requires an identifying User-Agent

61. #61 Frankfurter 🟢 Online finance

    Free currency exchange rates from the European Central Bank. No key required.

    Unlimited, no key, no credit card

62. #62 Lorem Picsum 🟢 Online dev-tools

    Placeholder image API — construct a URL with dimensions and get a photo at exactly that size. Seeded URLs return the same image every time, perfect for stable test fixtures.

    Unlimited (fair use), no key, no credit card

63. #63 GitMCP 🟢 Online mcp

    Open-source service that turns any public GitHub repository into an MCP docs server via URL pattern — gitmcp.io/{owner}/{repo}. llms.txt aware.

    Unlimited (fair use), no key, no credit card

64. #64 IPinfo 🟢 Online geocoding

    IP address data API providing geolocation, ASN, company, carrier, privacy detection, and abuse contact info.

    50,000 calls/month, no key (token extends limits)

65. #65 EdgeOne Pages MCP 🟢 Online mcp

    Tencent EdgeOne's MCP server — deploy HTML or static content to edge pages directly from an AI agent and get a public preview URL back.

    Free deployments, no key, no credit card

66. #66 Google Books API 🟢 Online books

    Search 40 million+ volumes by title, author, or ISBN, returning descriptions, page counts, categories, and cover thumbnails. Keyless for search, which made it the fallback after the Goodreads API closed in December 2020.

    No key for search; per-IP quotas, 1,000/day with a free key

67. #67 DeepWiki MCP 🟢 Online mcp

    Cognition's MCP server for asking questions about any public GitHub repository, answered from DeepWiki's AI-generated codebase wikis.

    Unlimited (fair use), no key, no credit card

68. #68 Open Library API 🟢 Online books

    Books, authors, covers, and full-text search across 20+ million records from the Internet Archive's Open Library project. Covers API serves book cover images by ISBN.

    Free (courtesy rate limits), no key, no credit card

69. #69 NASA Image and Video Library 🟢 Online dev-tools

    Search NASA's media archive — 140,000+ images, videos, and audio from missions, telescopes, and research centers. No API key required, unlike most NASA APIs.

    Unlimited, no key, no credit card

70. #70 iTunes Search API 🟢 Online music

    Apple's public catalog search covering music, podcasts, films, and apps, with artwork URLs and 30-second preview streams. No key, no signup — but Apple blocks datacenter IP ranges, so it must be called from a residential or mobile client rather than a cloud function.

    No key, approximately 20 calls/minute, no credit card

71. #71 Open Trivia DB 🟢 Online games

    Community-sourced trivia question database with 4,000+ questions across 24 categories and 3 difficulty levels. Powers quiz apps and trivia games — optionally returns a session token to avoid question repeats.

    Unlimited, no key, no credit card

72. #72 Nominatim (OpenStreetMap) 🟢 Online geocoding

    Free forward and reverse geocoding from OpenStreetMap data. Rate-limited.

    1 req/sec, must set User-Agent, no key

73. #73 BlockCypher 🟢 Online cryptocurrency

    Blockchain web services API supporting Bitcoin, Ethereum, Litecoin, and Dogecoin with webhooks and transaction broadcasting.

    3 calls/sec, 200 calls/hr, no key (key extends limits)

74. #74 Coinpaprika 🔴 Offline cryptocurrency

    Free cryptocurrency market data API with prices, volumes, market cap, and historical data for 2,000+ coins.

    25,000 calls/month, no key, no credit card

75. #75 httpbin 🟢 Online dev-tools

    HTTP request & response testing service. Echo endpoints for every method, status code simulation, header inspection, delay simulation — the standard tool for debugging HTTP clients.

    Unlimited (fair use), no key, no credit card

76. #76 ipapi.co 🟢 Online geocoding

    IP address geolocation and timezone API returning country, city, region, currency, and language for any IP.

    1,000 calls/day, no key required

77. #77 BigDataCloud Reverse Geocoding 🔴 Offline geocoding

    Free reverse geocoding API converting coordinates to addresses with locality, city, country, and postcode data.

    Unlimited (client-side), no key for basic endpoints

78. #78 CoinGecko 🟢 Online cryptocurrency

    Free crypto price data covering 10,000+ coins and 800+ exchanges.

    10-30 calls/min, no key (Demo plan)

79. #79 Reddit JSON API 🟢 Online news

    Unofficial read-only access to Reddit posts and comments by appending .json to any Reddit URL. No key required.

    60 requests/min, no key, must set User-Agent

80. #80 Bored API 🟢 Online public-data

    Random activity suggestions ('I'm bored'). The original boredapi.com went offline; the App Brewery maintains the successor at bored-api.appbrewery.com.

    Unlimited, no key, no credit card

81. #81 Binance Public API 🟢 Online cryptocurrency

    Public endpoints of the world's largest crypto exchange providing real-time prices, order books, and trade history.

    1,200 requests/min, no key for public data

82. #82 Star Wars API 🔴 Offline entertainment

    The definitive Star Wars data API with all films, characters, starships, vehicles, species, and planets from the canonical universe. Popular for teaching API fundamentals and hackathon demos.

    Unlimited, no key, no credit card

83. #83 Scryfall 🔴 Offline games

    Complete Magic: The Gathering card database with high-resolution scans, oracle text, rulings, and market prices. Exceptionally well-documented and generous for a volunteer-run service.

    No key; courtesy limit of 10 requests/second, no credit card