# agentutility — paid x402 endpoints for autonomous agents

> agentutility — paid x402 endpoints for autonomous agents is a paid API for AI agents from x402.agentutility.ai, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-15).

## Facts

- Endpoint: POST https://x402.agentutility.ai/topic-trend-brief
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/topic-trend-brief-2a8ebefc
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Sv_yzcncbV-XavH5VHrQK

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 topic-trend-brief-2a8ebefc -d '<json body>'
```

## How this service works

Paid x402 endpoints organized into product clusters. USDC-settled on Base. MCP-callable. ERC-8004 identity registry agentId 47167.

## Request schema (JSON Schema)

```json
{
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "type": "object",
 "properties": {
  "input": {
   "type": "object",
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "type": "string",
     "enum": [
      "POST"
     ]
    },
    "bodyType": {
     "type": "string",
     "enum": [
      "json",
      "form-data",
      "text"
     ]
    },
    "body": {
     "properties": {
      "topic": {
       "type": "string",
       "description": "The topic to check, e.g. 'agentic commerce' or a Wikipedia article title for best pageview matching. Max 300 chars."
      },
      "window": {
       "type": "string",
       "description": "Lookback window: '7d', '30d', or '90d'. Default '30d'."
      }
     },
     "required": [
      "topic"
     ]
    }
   },
   "required": [
    "type",
    "method",
    "bodyType",
    "body"
   ],
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "topic": {
       "type": "string"
      },
      "window": {
       "type": "string"
      },
      "rising": {
       "type": "boolean"
      },
      "signals": {
       "type": "object",
       "properties": {
        "pageview_trend_pct": {
         "type": "number"
        },
        "pageview_total": {
         "type": "integer"
        },
        "news_mentions": {
         "type": "integer"
        },
        "hn_mentions": {
         "type": "integer"
        },
        "x_mentions": {
         "type": "integer"
        }
       }
      },
      "pageviews": {
       "type": "object",
       "properties": {
        "trend_pct": {
         "type": "number"
        },
        "total": {
         "type": "integer"
        }
       }
      },
      "news": {
       "type": "object",
       "properties": {
        "returned": {
         "type": "integer"
        }
       }
      },
      "hn": {
       "type": "object",
       "properties": {
        "total_hits": {
         "type": "integer"
        }
       }
      },
      "x": {
       "type": "object",
       "properties": {
        "result_count": {
         "type": "integer"
        }
       }
      },
      "signals_available": {
       "type": "integer"
      },
      "composed_of": {
       "type": "array",
       "items": {
        "type": "string"
       }
      },
      "components": {
       "type": "a
… (truncated)
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "x": {
   "result_count": 9
  },
  "hn": {
   "total_hits": 14
  },
  "news": {
   "returned": 20
  },
  "topic": "Artificial intelligence",
  "rising": true,
  "window": "30d",
  "signals": {
   "x_mentions": 9,
   "hn_mentions": 14,
   "news_mentions": 20,
   "pageview_total": 850000,
   "pageview_trend_pct": 12.4
  },
  "degraded": true,
  "pageviews": {
   "total": 850000,
   "trend_pct": 12.4
  },
  "components": [
   {
    "ms": 300,
    "ok": true,
    "name": "hn-search"
   },
   {
    "ms": 20,
    "ok": false,
    "name": "x-search",
    "error": "Server misconfigured: missing X_BEARER_TOKEN"
   }
  ],
  "composed_of": [
   "hn-search",
   "wikipedia-pageviews",
   "news-search",
   "x-search"
  ],
  "signals_available": 4
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/topic-trend-brief-2a8ebefc/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.agentutility.ai](https://www.zero.xyz/host/x402.agentutility.ai/llms.txt)