FreeAPI.watch

Free APIs With No API Key Required

Updated July 2026 · 60 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 60 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 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

  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 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

  4. #4 Free Dictionary API 🟢 Online dev-tools

    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

  5. #5 PokéAPI 🟢 Online public-data

    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

  6. #6 Rick and Morty API 🟢 Online public-data

    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

  7. #7 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

  8. #8 BigDataCloud Reverse Geocoding 🟢 Online geocoding

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

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

  9. #9 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

  10. #10 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

  11. #11 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

  12. #12 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

  13. #13 Nominatim (OpenStreetMap) 🟢 Online geocoding

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

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

  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 Coinpaprika 🟢 Online 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

  16. #16 JokeAPI 🟢 Online public-data

    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

  17. #17 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)

  18. #18 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

  19. #19 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

  20. #20 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

  21. #21 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

  22. #22 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

  23. #23 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

  24. #24 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

  25. #25 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

  26. #26 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

  27. #27 Star Wars API 🟢 Online public-data

    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

  28. #28 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

  29. #29 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

  30. #30 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

  31. #31 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

  32. #32 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

  33. #33 Open Trivia DB 🟢 Online public-data

    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

  34. #34 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

  35. #35 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

  36. #36 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

  37. #37 TheMealDB 🟢 Online dev-tools

    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

  38. #38 TheCocktailDB 🟢 Online dev-tools

    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

  39. #39 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

  40. #40 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

  41. #41 Blockchair API 🟢 Online 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)

  42. #42 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

  43. #43 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

  44. #44 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

  45. #45 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

  46. #46 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

  47. #47 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

  48. #48 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

  49. #49 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

  50. #50 Open Library API 🟢 Online dev-tools

    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

  51. #51 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

  52. #52 Frankfurter 🟢 Online finance

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

    Unlimited, no key, no credit card

  53. #53 BlockCypher 🔴 Offline 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)

  54. #54 ipapi.co 🔴 Offline geocoding

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

    1,000 calls/day, no key required

  55. #55 Binance Public API 🔴 Offline 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

  56. #56 Reddit JSON API 🔴 Offline 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

  57. #57 CoinGecko 🔴 Offline cryptocurrency

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

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

  58. #58 Quotable 🔴 Offline public-data

    Free quotes API with 1,600+ curated quotes from 700+ authors, filterable by author, tag, and length. Used in daily-quote widgets, inspiration apps, and loading-screen easter eggs.

    Unlimited, no key, no credit card

  59. #59 Bored API 🔴 Offline public-data

    Returns random activity suggestions with type, participant count, price range, and accessibility ratings. A lightweight novelty API popular in hackathons for showing off API integration basics.

    Unlimited, no key, no credit card

  60. #60 Numbers API 🔴 Offline public-data

    Returns interesting facts about numbers — trivia, mathematical properties, date-based facts, and year facts. Simple text or JSON responses make it easy to embed fun number trivia in any app.

    Unlimited, no key, HTTP only

Frequently Asked Questions

Why do some free APIs require API keys?

API keys serve two purposes: rate-limiting and attribution. Even free APIs need to protect their infrastructure from abuse, so requiring a key lets the provider throttle or block individual bad actors without taking down the service for everyone. Keys also give providers usage analytics — how many calls, from which apps — which helps them justify the free tier to investors or plan capacity. If you're just prototyping, a key-required API is only a 30-second inconvenience; the real difference is production deployment, where 'no key' means one fewer secret to rotate and one fewer dependency to break.

Are no-key APIs production-safe?

It depends on the API. Some no-key APIs (Open-Meteo, NOAA Weather, Wikipedia REST) are run by well-funded organisations and are genuinely production-reliable. Others are volunteer-run projects with no SLA. The honest answer: check the uptime data on this page. A no-key API with 99%+ 30-day uptime in our monitoring is safer than a key-required API with 95%. The absence of a key says nothing about reliability — use our composite score to evaluate both dimensions together.

Do no-key APIs have rate limits?

Most do, even if they're not strictly enforced. Open-Meteo's published limit is 10,000 calls/day for non-commercial use. Nominatim enforces 1 request/second and expects a User-Agent header. Wikipedia REST API asks for a meaningful User-Agent but has no published hard cap. Binance's public API allows 1,200 requests/minute. The practical rule: set a User-Agent that identifies your app, stay well inside any published limits, and implement retry-with-backoff. Going over limits on a no-key API just results in 429 responses — no billing surprise.

Can I use no-key APIs for commercial projects?

Commercially — usually yes, with attribution requirements. Open-Meteo is explicitly non-commercial; for a paid product you'd need their commercial plan. Wikipedia content is CC-licensed and requires attribution but permits commercial use. Hacker News API, Reddit JSON, and DEV Community API have no commercial restrictions. Nominatim requires attribution to OpenStreetMap contributors. Always read the provider's terms of service before shipping to production; the 'no key' convenience doesn't automatically mean 'no restrictions'.