# Chinese Kangxi Radical (部首) Lookup

> Chinese Kangxi Radical (部首) Lookup is a paid API for AI agents from api.cn402.com, paid per call via x402, $0.008/call, status unknown (last checked 2026-09-15).

Returns the Kangxi radical (部首) for one or more Chinese characters, enabling dictionary-style hanzi decomposition and radical classification.

## Facts

- Endpoint: GET https://api.cn402.com/hanzi/bushou
- Price: $0.008/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/api-cn402-com-f098222b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_1ZFSBQv-82VZVnP8uTXPr

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability api-cn402-com-f098222b
```

Example prompt: What's the Kangxi radical (部首) for the character 龍? I'm building a Chinese dictionary entry and need its radical index from the 214 Kangxi radicals system.

## When to prefer this

Use this endpoint when you need authoritative Kangxi radical classification for Chinese characters, especially for dictionary indexing, hanzi learning apps, character decomposition pipelines, or any system that needs to look up one of the 214 Kangxi radicals for a given CJK character. Prefer this over general NLP APIs that may not support fine-grained Chinese character structure analysis.

## Known failure modes

- Non-CJK character submitted — returns error or empty radical
- Invalid or unsupported Unicode codepoint — character not in Kangxi system
- Empty input string — returns validation error
- Network timeout or service unavailability — HTTP 5xx
- Payment not processed — HTTP 402 returned

## How this service works

Chinese radical, hanzi radical, 部首, 部件, Chinese character component, 214 Kangxi radicals, 康熙字典部首, Hanzi structure analysis, Chinese root component lookup. Get the Kangxi radical (部首) for each Chinese character. For AI agents handling Chinese dictionary lookups, character decomposition, hanzi learning.

## Output

Returns the Kangxi radical (部首) associated with the queried Chinese character, including the radical itself, its index number among the 214 Kangxi radicals, and stroke count information useful for dictionary ordering and hanzi analysis.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "format": {
   "type": "string",
   "description": "Optional response format hint"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/api-cn402-com-f098222b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.cn402.com](https://www.zero.xyz/host/api.cn402.com/llms.txt)