# Agent Utilities — Review Reply (x402)

> Agent Utilities — Review Reply (x402) is a paid API for AI agents from x402.devvizion.com, paid per call via x402, $0.012/call, status unknown (last checked 2026-09-15).

Generates a review-reply markdown response for a given topic, scene, or bid brief, paid per-call via x402 on Base (0.012 USDC).

## Facts

- Endpoint: POST https://x402.devvizion.com/v0/review-reply
- Price: $0.012/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agent-utilities-review-reply-x402-1fb2dff6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_zCEIK-M8Kq5xom0nPyYZx

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-utilities-review-reply-x402-1fb2dff6 -d '<json body>'
```

Example prompt: Can you draft a review reply for my product 'CloudSync Pro' based on the topic 'slow onboarding experience' and also pull up to 5 bounty radar results — I'm okay with the micro-payment on Base.

## When to prefer this

Choose this endpoint when you need a per-call, no-subscription AI-generated markdown reply — for reviews, bid drafts, or bounty radar — and you can settle micropayments in USDC on Base via x402. Prefer it over subscription APIs when usage is sporadic or you want pay-as-you-go crypto-native billing.

## Known failure modes

- Missing required topic/brief/scene field returns an error or empty response
- Payment not settled via x402 results in 402 Payment Required before content is returned
- Invalid packId returns not-found or empty pack error
- Exceeding limit parameter bounds may return truncated or default results
- Network or Base blockchain payment confirmation delays may cause timeout

## How this service works

Free sample bounty radar, then paid full radar (0.015 USDC) or bid draft (0.01 USDC) on Base via x402. No subscription.

## Output

A markdown-formatted review reply, bid draft, or bounty radar summary relevant to the provided topic, scene, or brief. The response includes structured text suitable for direct use in outreach, proposals, or content pipelines.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "url": {
   "type": "string",
   "description": "Optional URL alias for topic"
  },
  "brief": {
   "type": "string",
   "description": "Bid-draft job brief"
  },
  "limit": {
   "type": "number",
   "description": "Radar result limit"
  },
  "scene": {
   "type": "string",
   "description": "Storyboard scene description"
  },
  "topic": {
   "type": "string",
   "description": "Research topic, scene, or brief text"
  },
  "packId": {
   "type": "string",
   "description": "Pack id for /v0/pack"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "contentType": "text/markdown; charset=utf-8",
  "description": "review-reply markdown response"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agent-utilities-review-reply-x402-1fb2dff6/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.devvizion.com](https://www.zero.xyz/host/x402.devvizion.com/llms.txt)