# Google Trends Related Topics

> Google Trends Related Topics is a paid API for AI agents from api.kadec0.xyz, paid per call via x402, $0.03/call, status unknown (last checked 2026-09-13).

Returns top (0-100 relative score) and rising (% growth) related topics for a keyword in a given country, including entity type metadata, sourced from Google Trends.

## Facts

- Endpoint: GET https://api.kadec0.xyz/v1/related-topics
- Price: $0.03/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/google-trends-related-topics-66edc848
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ibao0V4LIHyjvsBYNCZgS

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 google-trends-related-topics-66edc848
```

Example prompt: What are the top and rising Google Trends related topics for 'electric vehicles' in Germany over the past 12 months? I want to see which entity types are trending alongside it.

## When to prefer this

Use this endpoint when you need structured related-topic data directly from Google Trends with entity type metadata, including both relative (top) and growth-based (rising) signals, for a specific country. Prefer this over generic web search when you need quantified trend signals and topic associations rather than raw search results. It is especially valuable for content strategy, SEO keyword expansion, market research, and consumer behavior analysis tied to a specific geography and timeframe.

## Known failure modes

- Missing required 'keyword' or 'geo' parameter returns a validation error
- Invalid or unsupported ISO-3166 country code returns an error or empty results
- Very niche keywords with insufficient search volume may return empty topic lists
- Invalid timeframe enum value will be rejected by schema validation
- Rate limiting or upstream Google Trends availability may cause temporary failures

## How this service works

Google Trends related topics for a keyword. Returns the topics and named entities associated with a keyword in a given country, as top topics scored 0-100 relative to each other and rising topics with percentage growth, each carrying its entity type. Google Trends topic discovery for market research and content planning.

## Output

Returns two sets of related topics for the given keyword and country: (1) top topics scored 0-100 on a relative interest scale, and (2) rising topics showing percentage growth. Each topic includes an entity type label. Response also reports the time granularity (hourly, daily, or weekly) matching the selected timeframe.

## 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",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "keyword",
      "geo"
     ],
     "properties": {
      "geo": {
       "type": "string",
       "description": "ISO-3166 alpha-2 country code, e.g. US, GB, DE, JP (213 countries supported)"
      },
      "keyword": {
       "type": "string",
       "description": "the search term"
      },
      "timeframe": {
       "enum": [
        "2004_present",
        "past_12_months",
        "past_30_days",
        "past_4_hours",
        "past_5_years",
        "past_7_days",
        "past_90_days",
        "past_day",
        "past_hour"
       ],
       "type": "string",
       "default": "past_12_months",
       "description": "time window. Each response reports its own bucket size in `granularity`: past_30_days and past_90_days return a daily series, past_12_months and past_5_years weekly, windows under a day hourly"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/google-trends-related-topics-66edc848/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
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