# 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, $0.02/call, status unknown (last checked 2026-09-14).

## Facts

- Endpoint: POST https://x402.agentutility.ai/mcp-tool-risk-score
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/mcp-tool-risk-score-728ea62e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_pZfnl3Y2T8SRCN94nDYqi

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 mcp-tool-risk-score-728ea62e -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": [
      "tools"
     ],
     "properties": {
      "tools": {
       "type": "array",
       "description": "MCP tool manifest: a JSON array of tool definitions, each typically shaped {name, description, inputSchema}. Required, non-empty, max 50 entries, capped at 60,000 chars when serialized."
      },
      "context": {
       "type": "string",
       "description": "Optional deployment context, e.g. 'runs with a service account that has prod write access'. 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": {
      "model": {
       "type": "string"
      },
      "tools": {
       "type": "array",
       "items": {
        "type": "object",
        "properties": {
         "name": {
          "type": "string"
         },
         "reasons": {
          "type": "array",
          "items": {
           "type": "string"
          }
         },
         "overall_score": {
          "type": "integer"
         },
         "permission_scope_score": {
          "type": "integer"
         },
         "injection_surface_score": {
          "type": "integer"
         },
         "destructive_action_score": {
          "type": "integer"
         }
        }
       }
      },
      "source": {
       "type": "string"
      },
      "summary": {
       "type": "string"
      },
      "heuristic": {
       "type": "boolean"
      },
      "overall_score": {
       "type": "integer"
      }
     }
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "model": "hermes-3-llama-3.1-405b",
  "tools": [
   {
    "name": "delete_file",
    "reasons": [
     "Unrestricted filesystem delete with no path allowlist described in the schema."
    ],
    "overall_score": 88,
    "permission_scope_score": 80,
    "injection_surface_score": 30,
    "destructive_action_score": 95
   },
   {
    "name": "list_files",
    "reasons": [
     "Read-only, scoped listing."
    ],
    "overall_score": 15,
    "permission_scope_score": 20,
    "injection_surface_score": 10,
    "destructive_action_score": 5
   }
  ],
  "source": "morpheus",
  "summary": "delete_file is the highest-risk tool due to unrestricted destructive scope.",
  "heuristic": true,
  "overall_score": 60
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/mcp-tool-risk-score-728ea62e/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)