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Kanji API

Kanji readings, strokes and meanings

📖 Books & WordsHEALTHYchecked 7h ago
AUTH NONECORS ✓AGENT ✓HTTPS ✓COMMERCIAL ?

Open kanji reference data by character or grade level. Returns on-yomi, kun-yomi, meanings and stroke count as JSON — no key.

88HOW IT'S SCORED ⓘ
▶ Run liveDocs ↗
Status badge · for your READMEshipapis health badge: 88 · healthy
Uptime history
100%90 days
100%30 days
390P50 · ms
2870P95 · ms
operationalpartialdownno data
Response time · last 48 checks
Fastest 45 ms, slowest 2299 ms, most recent 228 ms.
Live response samplecaptured by our last successful check
GET https://kanjiapi.dev/v1/kanji/水

{
  "freq_mainichi_shinbun": 223,
  "grade": 1,
  "heisig_en": "water",
  "jlpt": 5,
  "kanji": "水",
  "kun_readings": [
    "みず",
    "みず-"
  ],
  "meanings": [
    "water"
  ],
  "name_readings": [
    "うず",
    "ずみ"
  ]
}
Call itcurl · fetch · python
curl "https://kanjiapi.dev/v1/kanji/水"
const res = await fetch("https://kanjiapi.dev/v1/kanji/水");
const data = await res.json();
console.log(data);
import requests

res = requests.get("https://kanjiapi.dev/v1/kanji/水")
print(res.json())
Endpoints · 5HealthyFULL DOCS ↗
Monitored path responding — GET /kanji/水390 mschecked 7h ago
GET/kanji/水PROBED

Kanji readings, strokes and meanings

GET/kanji

Kanji — documented GET route.

GET/kanji/1

Kanji details by ID (example: 1).

GET/kanji?limit=10

Kanji — documented GET route.

GET/kanji/search?q=test

Search by query parameters.

Machine-readable spec

We probe a documented GET and expect 2xx JSON — full uptime and health score. Export includes every documented route below.

Response-shape history

Stable. No schema drift observed since monitoring began — the response shape has not changed under our checks.

Kanji API: common questions

Is Kanji API free to use?

Yes — Kanji API is a free books & words API. Free tier: Free — limits not published. Whether the free tier allows commercial use is unclear — check the provider docs.

Does Kanji API need an API key?

No — Kanji API needs no API key or signup. You can call it straight away; rate limits still apply (Unpublished).

Can I call Kanji API from the browser?

Yes — Kanji API returns CORS headers over HTTPS, so front-end code can fetch it directly with no backend proxy. Use the fetch snippet on this page, or hit "Run live" to try it now.

Is Kanji API up right now?

As of our last scheduled check, Kanji API is healthy with 100% uptime over 90 days and a 390 ms median response. We re-probe it every sweep — the status badge and uptime chart above always show the latest.