# 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/agent-trace-brief
- 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/agent-trace-brief-64beb384
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_URNW0mJx6w9m0A-cFsSiX

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 agent-trace-brief-64beb384 -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.

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "brief": {
   "unknowns": [
    "the exact shape search_web returned is not captured in the trace"
   ],
   "confidence": "medium",
   "step_summary": [
    {
     "step": 1,
     "action": "call search_web(query='x402 protocol')",
     "outcome": "returned 3 results"
    },
    {
     "step": 2,
     "action": "call parse_result(result[0])",
     "outcome": "threw TypeError: undefined is not an object"
    }
   ],
   "failure_points": [
    "step 2: parse_result threw TypeError on result[0], which was not a plain object"
   ],
   "root_cause_hypothesis": "search_web's result shape changed or returned an unexpected type that parse_result did not guard against."
  },
  "model": "hermes-3-llama-3.1-405b",
  "source": "morpheus"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agent-trace-brief-64beb384/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)