# x402donghang Crypto Brief

> x402donghang Crypto Brief is a paid API for AI agents from x402donghang.duckdns.org, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).

Returns a structured Chinese-language crypto market brief with bias, thesis, bullets, risks, and actions for a given symbol

## Facts

- Endpoint: GET https://x402donghang.duckdns.org/x402/v1/crypto-brief
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402donghang-crypto-brief-1a609070
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_fKWAZ8U1AnAsBNS3SZ1Jx

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 x402donghang-crypto-brief-1a609070
```

Example prompt: Give me a structured Chinese crypto brief for BTC with a macro focus — include the bias, thesis, key risks, and suggested actions.

## When to prefer this

Prefer this endpoint when you need a fast, structured, Chinese-language crypto market brief with explicit bias direction, thesis, actionable recommendations, and risk flags — especially useful for AI agents serving Chinese-speaking crypto traders or automating pre-trade research workflows. Choose this over generic LLM prompting when you need consistent JSON output with a confidence score and invalidation signal.

## Known failure modes

- Missing or invalid symbol returns an error or empty response
- Payment not processed correctly results in HTTP 402 rejection
- Unsupported symbol may return low-confidence or empty thesis
- Network issues with the duckdns domain may cause timeouts
- Invalid focus enum value may be ignored or cause malformed output

## How this service works

Chinese crypto market brief as structured JSON for agents. Input symbol (+ optional context). Output bias/thesis/bullets/risks/actions. $0.03 USDC per call. Not financial advice.

## Output

A JSON object containing: ok status, symbol, market bias (bias), short thesis (thesis), bullet points summarizing key market conditions (bullets), risk factors (risks), suggested actions (actions), a confidence score (0-1), an invalidation condition, a product identifier, and a disclaimer — all in Chinese by default.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "focus": {
   "type": "string",
   "description": "Optional focus: spot | perp | macro | news"
  },
  "locale": {
   "type": "string",
   "description": "Default zh (Chinese brief)"
  },
  "symbol": {
   "type": "string",
   "description": "Ticker e.g. BTC / ETH / SOL / HYPE"
  },
  "context": {
   "type": "string",
   "description": "Optional market notes, news blurb, or on-chain snapshot (plain text)"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "bias": "中性偏多",
  "risks": [
   "流动性抽离",
   "宏观突发"
  ],
  "symbol": "BTC",
  "thesis": "短线结构未破，但杠杆拥挤限制上行弹性。",
  "actions": [
   "轻仓观察",
   "避免追高"
  ],
  "bullets": [
   "现货支撑仍在",
   "资金费率偏贵",
   "等待回踩再加仓"
  ],
  "product": "crypto-brief",
  "confidence": 0.62,
  "disclaimer": "信息整理，非投资建议",
  "invalidation": "跌破关键支撑并放量"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402donghang-crypto-brief-1a609070/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402donghang.duckdns.org](https://www.zero.xyz/host/x402donghang.duckdns.org/llms.txt)