# Category Brand Ranking by AI Visibility

> Category Brand Ranking by AI Visibility is a paid API for AI agents from store.agentexchange.work, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-13).

Returns a ranked list of brands by mention share for a given product/service category, reflecting AI visibility across markets.

## Facts

- Endpoint: GET https://store.agentexchange.work/category/ranking
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/category-brand-ranking-by-ai-visibility-482a3c97
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Ezaxrca_4IQqhP07QkUfS

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 category-brand-ranking-by-ai-visibility-482a3c97
```

Example prompt: What are the top-ranked CRM software brands by AI visibility in the US market right now — show me who's leading and their mention share?

## When to prefer this

Use this endpoint when you need to understand which brands have the highest AI-visibility or mention share within a specific product/service category, especially for competitive intelligence, market research, or benchmarking. Prefer this over general web search when you need structured, ranked, comparable brand data rather than raw search results.

## Known failure modes

- Missing required 'category' query param returns a 400 or error response
- Invalid or unsupported market code may return empty results or default to 'us'
- Payment not sent or insufficient USDC triggers a 402 Payment Required response
- Category with no data returns an empty ranked array
- Network timeout or upstream data unavailability returns a 5xx error

## How this service works

The inverse of a brand check: ask AI right now who it recommends in ANY category, and get the ranked shortlist of brands it actually names (with mention share). Live from a current model. For competitive-intel, market-research, GEO and sales agents that want the whole AI landscape of a category, not just one brand. Nobody else sells the live category leaderboard.

## Output

A ranked array of brands for the requested category, each with their rank position, total mention count, and share percentage relative to the top brand, plus the resolved category string.

## 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": [
      "category"
     ],
     "properties": {
      "market": {
       "type": "string",
       "description": "us|uk|de|jp|kr|fr|es|br|in (default us)"
      },
      "category": {
       "type": "string",
       "description": "Any product/service category, e.g. 'CRM software', 'project management tools', 'DeFi lending protocols'"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "ranked": {
       "type": "array"
      },
      "category": {
       "type": "string"
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/category-brand-ranking-by-ai-visibility-482a3c97/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from store.agentexchange.work](https://www.zero.xyz/host/store.agentexchange.work/llms.txt)