# 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, $0.003/call, status unknown (last checked 2026-09-14).

## Facts

- Endpoint: POST https://x402.agentutility.ai/json-schema-validate
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/json-schema-validate-0c47077e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_GilN4AoyrM9bHwJnF5--R

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 json-schema-validate-0c47077e -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": {
      "schema": {
       "type": "object",
       "description": "The JSON Schema document. Max 200,000 chars when stringified."
      },
      "data": {
       "description": "The JSON data to validate. Any value. Max 500,000 chars when stringified."
      },
      "draft": {
       "type": "string",
       "description": "Schema draft: '2020-12' (default) or 'draft-07'."
      },
      "valid_only": {
       "type": "boolean",
       "description": "If true, skips per-error detail and returns only { valid, error_count }. Default false."
      },
      "formats": {
       "type": "boolean",
       "description": "Deprecated no-op; format keywords (email, date, uri, uuid, etc.) are always validated. Accepted for backward compatibility."
      }
     },
     "required": [
      "schema",
      "data"
     ]
    }
   },
   "required": [
    "type",
    "method",
    "bodyType",
    "body"
   ],
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "valid": {
       "type": "boolean"
      },
      "draft": {
       "type": "string"
      },
      "error_count": {
       "type": "integer"
      },
      "truncated": {
       "type": "boolean"
      },
      "errors": {
       "type": "array"
      }
     }
    }
   },
   "required": [
    "type"
   ]
  }
 },
 "required": [
  "input"
 ]
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "draft": "2020-12",
  "valid": true,
  "errors": [],
  "truncated": false,
  "error_count": 0
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/json-schema-validate-0c47077e/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)