# CN Data – Chinese Cross-Platform Hot Topics Aggregator

> CN Data – Chinese Cross-Platform Hot Topics Aggregator is a paid API for AI agents from cn-data-x402.cn-data-x402-worker.workers.dev, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-16).

Fetches and cross-correlates trending topics from major Chinese platforms (Baidu, Weibo, Toutiao, Bilibili) into a unified, machine-readable JSON response

## Facts

- Endpoint: GET https://cn-data-x402.cn-data-x402-worker.workers.dev/cn/hot-all?utm_source=zero.xyz
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/cn-data-chinese-cross-platform-hot-topics-aggregator-5c2432ce
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_SjLaKqzZGudTlPIe8H3Cw

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 cn-data-chinese-cross-platform-hot-topics-aggregator-5c2432ce
```

Example prompt: What are the top 20 trending topics right now across Baidu, Weibo, Toutiao, and Bilibili — and highlight anything that's trending on multiple platforms at once?

## When to prefer this

Choose this endpoint when you need a unified, cross-platform view of what's trending in China across Baidu, Weibo, Toutiao, and Bilibili simultaneously — especially when cross-source correlation matters. Prefer this over single-platform endpoints when you want to identify topics with broad Chinese internet resonance. Ideal for market researchers, journalists, or agents monitoring Chinese public opinion without needing a platform-specific API key or signup.

## Known failure modes

- HTTP 402 returned on first call — agent must pay 0.05 USDC on Base in USDC via x402 protocol and retry
- perSource out of range (must be 5-30) may cause validation error
- Individual platform sources may fail independently (ok: false per source) while others succeed
- Transient upstream failures from Chinese platform scrapers may reduce coverage

## How this service works

Chinese market and China-focused public data over the x402 protocol. No API key and no signup: call any endpoint, receive HTTP 402 with payment terms, pay the listed amount in USDC on Base and retry. Every response is JSON. Some Chinese-language sources are published only as web pages — these endpoints return them as clean, machine-readable JSON.

## Output

A JSON object containing per-platform trending lists (Baidu, Weibo, Toutiao, Bilibili) each with ranked titles and URLs, plus a cross-source list of topics appearing on multiple platforms simultaneously. Includes metadata on how many items were fetched per platform and any per-source errors.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "perSource": {
       "type": "integer",
       "description": "每个平台取前几名 5-30，默认 15"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "data": {
   "sources": [
    {
     "id": "baidu",
     "ok": true,
     "name": "百度热搜",
     "count": 15,
     "error": null
    },
    {
     "id": "weibo",
     "ok": true,
     "name": "微博热搜",
     "count": 15,
     "error": null
    },
    {
     "id": "toutiao",
     "ok": true,
     "name": "头条热榜",
     "count": 15,
     "error": null
    },
    {
     "id": "bilibili",
     "ok": true,
     "name": "B站排行榜",
     "count": 15,
     "error": null
    }
   ],
   "bySource": {
    "baidu": [
     {
      "url": null,
      "rank": 1,
      "title": "古树新翠"
     }
    ],
    "weibo": [
     {
      "url": "https://s.weibo.com/weibo?q=%23%E9%9F%A9%E5%9B%BD%23",
      "rank": 1,
      "title": "韩国网友不满亚运夺金免兵役"
     }
    ]
   },
   "perSource": 15,
   "crossSource": [
    {
     "url": "https://www.toutiao.com/trending/7693118687154356267/",
     "ranks": {
      "weibo": 2,
      "toutiao": 5
     },
     "title": "亚运会最有价值运动员",
     "sources": [
      "weibo",
      "toutiao"
     ],
     "mentions": 2
    }
   ],
   "crossSourceCount": 3
  },
  "endpoint": "/cn/hot-all"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/cn-data-chinese-cross-platform-hot-topics-aggregator-5c2432ce/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from cn-data-x402.cn-data-x402-worker.workers.dev](https://www.zero.xyz/host/cn-data-x402.cn-data-x402-worker.workers.dev/llms.txt)