# DeepSearch Hot Themes – Korean Financial News Trend Detector

> DeepSearch Hot Themes – Korean Financial News Trend Detector is a paid API for AI agents from x402.deepsearch.com, paid per call via x402, $0.1/call, status unknown (last checked 2026-10-12).

Returns investment keywords and themes surging in Korean financial news over a configurable look-back window, with burst ratios, related listed companies, and representative headlines.

## Facts

- Endpoint: GET https://x402.deepsearch.com/v1/context/hot-themes?utm_source=zero.xyz
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/deepsearch-hot-themes-korean-financial-news-trend-detector-f98f18b3
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_g4prosW2dVLBD00wzazBK

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 deepsearch-hot-themes-korean-financial-news-trend-detector-f98f18b3
```

Example prompt: What investment themes and keywords are surging in Korean financial news right now? Show me the top 10 over the last 14 days, with their burst ratios and the listed Korean companies tied to each theme.

## When to prefer this

Choose this endpoint when you need a real-time pulse on which investment themes and keywords are gaining momentum in Korean financial news, filtered specifically for investable signals (politics and celebrity noise removed). Prefer it over general news search when you want quantified burst ratios, automatic linkage to KRX-listed companies, and ready-to-use headlines — rather than raw unfiltered articles. It is especially useful for daily market briefings, sector rotation monitoring, and kick-starting thematic investment research on Korean equities.

## Known failure modes

- days parameter out of range (must be 1-90) returns validation error
- limit parameter out of range (must be 1-30) returns validation error
- payment not included or insufficient USDC triggers 402 Payment Required
- no trending themes found for very short windows returns empty keyword array
- rate limiting or upstream news data delay may cause stale or empty results

## How this service works

Investment themes and keywords surging in Korean financial news over the last N days (default 30) versus their history, filtered to investable market and industry context (politics and celebrity noise removed), each with burst ratio, related listed companies and headlines.

## Output

A ranked list of up to 30 investment keywords/themes currently bursting in Korean financial news, each with: the keyword itself, its burst ratio (recent frequency vs. historical baseline), recent mention count, linked KRX-listed company codes and names, and sample headlines. Politics and celebrity noise is filtered out, leaving only investable market and industry signals.

## 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",
     "required": [],
     "properties": {
      "days": {
       "type": "string",
       "description": "Look-back window in days, 1-90 (default 30)"
      },
      "limit": {
       "type": "string",
       "description": "Max rows, 1-30 (default 15)"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "data": {
   "keywords": [
    {
     "burst": 6.2,
     "recent": 312,
     "keyword": "HBM4",
     "companies": [
      {
       "code": "000660",
       "name": "SK하이닉스"
      }
     ],
     "headlines": [
      "…"
     ]
    }
   ]
  },
  "packType": "hot-themes"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/deepsearch-hot-themes-korean-financial-news-trend-detector-f98f18b3/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.deepsearch.com](https://www.zero.xyz/host/x402.deepsearch.com/llms.txt)