# 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, $0.025/call, status unknown (last checked 2026-09-14).

## Facts

- Endpoint: POST https://x402.agentutility.ai/story-search
- Price: $0.025/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/story-search-4f12dfa1
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Dhvk72L7dm0M9BKF6Jo_d

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 story-search-4f12dfa1 -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
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "required": [
      "query"
     ],
     "properties": {
      "sort": {
       "enum": [
        "relevance",
        "date"
       ],
       "type": "string",
       "description": "Ranking order. 'relevance' round-robin interleaves HN and web results; 'date' sorts by recency, newest first, with undated results last. Default 'relevance'."
      },
      "type": {
       "enum": [
        "story"
       ],
       "type": "string",
       "description": "Result type. Only 'story' is supported. Default 'story'."
      },
      "limit": {
       "type": "number",
       "description": "Max results to return after merging and deduping. Default 10, max 30."
      },
      "query": {
       "type": "string",
       "description": "Search query, e.g. 'stablecoin regulation'. Max 500 chars."
      }
     }
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "sort": {
       "type": "string"
      },
      "query": {
       "type": "string"
      },
      "results": {
       "type": "array",
       "items": {
        "type": "object",
        "properties": {
         "url": {
          "type": "string"
         },
         "title": {
          "type": "string"
         },
         "points": {
          "type": "integer"
         },
         "source": {
          "type": "string"
         },
         "snippet": {
          "type": "string"
         },
         "created_at": {
          "type": "string"
         }
        }
       }
      },
      "degraded": {
       "type": "boolean"
      },
      "returned": {
       "type": "integer"
      },
      "components": {
       "type": "array",
       "items": {
        "type": "object",
        "properties": {
         "ms": {
          "type": "integer"
         },
         "ok": {
          "type
… (truncated)
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "sort": "relevance",
  "query": "stablecoin regulation",
  "results": [
   {
    "url": "https://news.ycombinator.com/item?id=1",
    "title": "Stablecoin bill clears committee",
    "points": 210,
    "source": "hn",
    "created_at": "2026-07-04T12:00:00Z"
   },
   {
    "url": "https://example.com/a",
    "title": "What the new stablecoin rules mean",
    "source": "web",
    "snippet": "A plain-English breakdown of the new rules."
   },
   {
    "url": "https://news.ycombinator.com/item?id=2",
    "title": "Ask HN: how do stablecoins settle",
    "points": 84,
    "source": "hn",
    "created_at": "2026-07-03T09:00:00Z"
   }
  ],
  "degraded": false,
  "returned": 4,
  "components": [
   {
    "ms": 420,
    "ok": true,
    "name": "hn-search"
   },
   {
    "ms": 980,
    "ok": true,
    "name": "web-search"
   }
  ],
  "composed_of": [
   "hn-search",
   "web-search"
  ]
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/story-search-4f12dfa1/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)