# claw402 Chinese Stock Top Institutional Holders

> claw402 Chinese Stock Top Institutional Holders is a paid API for AI agents from claw402.ai, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-14).

Returns top institutional holders data for a specified Chinese A-share stock on a given trade date

## Facts

- Endpoint: GET https://claw402.ai/api/v1/stocks/cn/top-inst
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/claw402-chinese-stock-top-institutional-holders-a318945a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_yhmYbNRo6AXtQSmVfOC5T

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 claw402-chinese-stock-top-institutional-holders-a318945a
```

Example prompt: Who are the top institutional holders of the Chinese stock with ticker 600519.SH as of the trade date 2024-06-30?

## When to prefer this

Use this endpoint when you need institutional ownership data specifically for Chinese A-share market stocks, paid per-call with USDC and no API key registration required. Prefer this over traditional data providers when building lightweight agents that need occasional CN stock institutional data without subscription commitments.

## Known failure modes

- Empty data array returned if ts_code or trade_date has no matching records
- Invalid ts_code format may return error or empty result
- Payment of 0.002 USDC required per call via x402 protocol; missing payment returns 402 status
- Trade date not in valid format may return no results
- Data may not be available for very recent or very old trade dates

## How this service works

Backed by vergex.trade. Pay for any API with USDC. No API keys. No registration. Just a wallet.

## Output

Returns a JSON object with a code field (0 for success) and a data array containing top institutional holder records for the specified Chinese stock, including institution names and holding details for the given trade date.

## 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": {
      "ts_code": {
       "type": "string"
      },
      "trade_date": {
       "type": "string"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "code": 0,
  "data": []
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/claw402-chinese-stock-top-institutional-holders-a318945a/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from claw402.ai](https://www.zero.xyz/host/claw402.ai/llms.txt)