No votes to buy, no sponsored slots: ranked by proof — endpoint-verified live first, then by the response time our checker actually measured. Next run, the board reshuffles itself.
| # | API | Category | Status | Response | Auth |
|---|---|---|---|---|---|
| 1 | Open Notify — ISS Where is the International Space Station right now? One tiny JSON answers it. | Science & Space | Live · verified 22 Oct 2026 · 452 ms | 452 ms | No key |
| 2 | Rick and Morty API All characters, locations and episodes from the show. Wubba lubba dub dub. | Games & Anime | Live · verified 22 Oct 2026 · 575 ms | 575 ms | No key |
| 3 | arXiv API Search millions of open-access research preprints in physics, CS, math and more. | Science & Space | Live · verified 22 Oct 2026 · 656 ms | 656 ms | No key |
| 4 | TheSportsDB Sports teams, leagues, players and live scores with a free test key. | Sports | Live · verified 22 Oct 2026 · 673 ms | 673 ms | No key |
| 5 | UI Avatars Instant name-initial avatars via URL — perfect default profile pictures. | Images, Avatars & Media | Live · verified 22 Oct 2026 · 688 ms | 688 ms | No key |
| 6 | SWAPI — Star Wars API People, planets, starships and films from a galaxy far, far away. | Games & Anime | Live · verified 22 Oct 2026 · 720 ms | 720 ms | No key |
| 7 | Cat Facts A random cat fact in one call. The hello-world of APIs, and it never gets old. | Fun, Facts & Random | Live · verified 22 Oct 2026 · 736 ms | 736 ms | No key |
| 8 | Fawaz Currency API 150+ currency rates served from a CDN — blazing fast and totally keyless. | Finance & Crypto | Live · verified 22 Oct 2026 · 745 ms | 745 ms | No key |
| 9 | Kanye Rest Random Kanye West quotes. Every portfolio needs exactly one of these. | Fun, Facts & Random | Live · verified 22 Oct 2026 · 754 ms | 754 ms | No key |
| 10 | DiceBear Avatars Generate avatar illustrations in dozens of styles from a seed string. SVG or PNG. | Images, Avatars & Media | Live · verified 22 Oct 2026 · 785 ms | 785 ms | No key |
| 11 | Open Trivia DB Thousands of trivia questions by category and difficulty — build a quiz in an afternoon. | Games & Anime | Live · verified 22 Oct 2026 · 786 ms | 786 ms | No key |
| 12 | Bored API Never be bored again — random activity ideas by type and participants. | Fun, Facts & Random | Live · verified 22 Oct 2026 · 795 ms | 795 ms | No key |
| 13 | httpbin The HTTP request/response playground — echoes headers, tests methods, delays and more. | Developer Tools | Live · verified 22 Oct 2026 · 841 ms | 841 ms | No key |
| 14 | Wikipedia REST API Article summaries, featured content and media from Wikipedia in clean JSON. | Books, Words & Learning | Live · verified 22 Oct 2026 · 854 ms | 854 ms | No key |
| 15 | npm Registry API Metadata for every npm package — versions, downloads, dependencies. | Developer Tools | Live · verified 22 Oct 2026 · 867 ms | 867 ms | No key |
| 16 | ZenQuotes Inspirational quotes from Zen masters and modern thinkers. | Fun, Facts & Random | Live · verified 22 Oct 2026 · 908 ms | 908 ms | No key |
| 17 | Dad Jokes (icanhazdadjoke) The largest selection of dad jokes on the internet, in JSON. | Fun, Facts & Random | Live · verified 22 Oct 2026 · 910 ms | 910 ms | No key |
| 18 | Semantic Scholar 200M+ academic papers with AI-powered recommendations and citation graphs. | Data & Reference | Live · verified 22 Oct 2026 · 926 ms | 926 ms | No key |
| 19 | MTG API (magicthegathering.io) Magic: The Gathering cards and sets — the classic trading-card API. | Games & Anime | Live · verified 22 Oct 2026 · 934 ms | 934 ms | No key |
| 20 | TheAudioDB Artist bios, album art and music videos with a free test key. | Music, Movies & TV | Live · verified 22 Oct 2026 · 948 ms | 948 ms | No key |
| 21 | CATAAS — Cat as a Service Random cat pictures and GIFs as an API. Yes, really. The internet demanded it. | Images, Avatars & Media | Live · verified 22 Oct 2026 · 952 ms | 952 ms | No key |
| 22 | Datamuse A word-finding engine — rhymes, synonyms, 'sounds like' and 'means like' queries for writers and games. | Books, Words & Learning | Live · verified 22 Oct 2026 · 953 ms | 953 ms | No key |
| 23 | Studio Ghibli API Films, characters and locations from the Ghibli universe. | Games & Anime | Live · verified 22 Oct 2026 · 954 ms | 954 ms | No key |
| 24 | GitHub API Repos, users, issues and search for the whole public GitHub — the developer's Swiss army knife. | Developer Tools | Live · verified 22 Oct 2026 · 956 ms | 956 ms | No key |
| 25 | TheCocktailDB Cocktail recipes, ingredients and glassware — the drinks sibling of TheMealDB. | Food & Drink | Live · verified 22 Oct 2026 · 960 ms | 960 ms | No key |
Only verified-tier APIs rank here. Listed-tier APIs join once endpoint-tested. Full board: live status · Compare any two: the tool.