x402donghang Watchlist Brief

x402

x402donghang Watchlist Brief is a paid API for AI agents from x402donghang.duckdns.org, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-15).

Generates structured per-symbol crypto trading briefs with bias, thesis, risk, and action items for a user-defined watchlist

Price / call$0.05

Seller volume →—

Success—

StatusUnknown

How this service works

Fresh crypto narrative research with market context and verifiable source URLs. Free BTC sample; custom radar $0.02/call via x402 USDC.

Output

A JSON array of per-symbol structured briefs, each containing: trading bias label, short thesis, confidence score (0-1), timeframe, bullet-point observations, recommended actions, key risks, and an invalidation condition that would negate the thesis. Results also include a product identifier and disclaimer.

Example use cases

Spot market watchlist morning scan

“It's the start of my trading day — give me a quick English brief for BTC, ETH, and SOL with bias, thesis, and what risks I should watch out for, focusing on spot.”

Perp trader daily briefing

“I'm trading perps — can you run a watchlist brief for ARB, SOL, and DOGE with a perp focus in English? I want confidence scores and invalidation levels for each.”

Macro-focused portfolio check in Chinese

“给我做一个宏观视角的看盘简报，标的是BTC和ETH，用中文输出，包括偏向、逻辑、风险和操作建议。”

Technical details

Endpoint

GEThttps://x402donghang.duckdns.org/x402/v1/watchlist-brief

When to prefer

Choose this endpoint when you need a per-symbol structured trading brief with explicit bias, thesis, confidence, risk, and invalidation — not just raw price data or news headlines. It is ideal for crypto trading agents that need actionable, AI-synthesized intelligence on a specific watchlist rather than broad market commentary. Prefer this over generic LLM prompts when you need consistent schema output (bias, bullets, actions) that downstream agents or dashboards can parse. Best when user wants both English and Chinese language support.

Side effects

Missing or empty symbols array returns validation error
More than 10 symbols in the request exceeds maxItems limit
Invalid focus value outside allowed enum may be ignored or error
Payment failure via x402 protocol returns 402 with payment requirements
Model latency spikes may cause timeout on large symbol lists
Locale value outside 'en'/'zh' may default or error

Input

Schema · Request body

Field	Type	Description
focus	string	Optional shared focus: spot \| perp \| macro \| news, max 300 characters
locale	string	Output language; default zh
symbols	array	Tickers to brief; one structured brief per symbol

Output

Schema · Response

{
  "type": "json",
  "example": {
    "ok": true,
    "items": [
      {
        "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"
        ],
        "timeframe": "波段",
        "confidence": 0.62,
        "invalidation": "跌破关键支撑并放量"
      }
    ],
    "product": "watchlist-brief",
    "disclaimer": "信息整理，非投资建议"
  }
}

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How this service works

Fresh crypto narrative research with market context and verifiable source URLs. Free BTC sample; custom radar $0.02/call via x402 USDC.

Output

Example use cases

Spot market watchlist morning scan

“It's the start of my trading day — give me a quick English brief for BTC, ETH, and SOL with bias, thesis, and what risks I should watch out for, focusing on spot.”

Perp trader daily briefing

“I'm trading perps — can you run a watchlist brief for ARB, SOL, and DOGE with a perp focus in English? I want confidence scores and invalidation levels for each.”

Macro-focused portfolio check in Chinese

“给我做一个宏观视角的看盘简报，标的是BTC和ETH，用中文输出，包括偏向、逻辑、风险和操作建议。”

Technical details

Endpoint

GEThttps://x402donghang.duckdns.org/x402/v1/watchlist-brief

When to prefer

Side effects

Missing or empty symbols array returns validation error
More than 10 symbols in the request exceeds maxItems limit
Invalid focus value outside allowed enum may be ignored or error
Payment failure via x402 protocol returns 402 with payment requirements
Model latency spikes may cause timeout on large symbol lists
Locale value outside 'en'/'zh' may default or error

Input

Schema · Request body

Field	Type	Description
focus	string	Optional shared focus: spot \| perp \| macro \| news, max 300 characters
locale	string	Output language; default zh
symbols	array	Tickers to brief; one structured brief per symbol

Output

Schema · Response

{
  "type": "json",
  "example": {
    "ok": true,
    "items": [
      {
        "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"
        ],
        "timeframe": "波段",
        "confidence": 0.62,
        "invalidation": "跌破关键支撑并放量"
      }
    ],
    "product": "watchlist-brief",
    "disclaimer": "信息整理，非投资建议"
  }
}