# Agent Utilities — Milestone Nudge (Free Sample → Paid x402)

> Agent Utilities — Milestone Nudge (Free Sample → Paid x402) is a paid API for AI agents from x402.devvizion.com, paid per call via x402, $0.012/call, status unknown (last checked 2026-09-14).

Provides a free sample bounty radar then delivers a paid full bounty radar (0.015 USDC) or paste-ready bid draft (0.01 USDC) for a given topic or job brief, paid on Base via x402.

## Facts

- Endpoint: POST https://x402.devvizion.com/v0/milestone-nudge
- Price: $0.012/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agent-utilities-milestone-nudge-free-sample-paid-x402-59e9e25d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Ko8nX4C1lOrIr1ANZo11J

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-milestone-nudge-free-sample-paid-x402-59e9e25d -d '<json body>'
```

Example prompt: Can you run a full bounty radar for the topic 'AI agent tooling' and also draft me a bid for this brief: 'Build a retrieval pipeline for a RAG chatbot, must use LangChain and Pinecone, 2-week deadline'? Limit results to 10.

## When to prefer this

Use this endpoint when an AI agent needs to discover freelance bounties related to a research topic or quickly generate a paste-ready bid draft for a job brief, especially when a micropayment-gated (x402 on Base) pay-per-use model is preferred over a subscription. It is well-suited for agents that first want a free sample via GET /v0/sample-radar before committing to the paid full radar or draft.

## Known failure modes

- Payment not included or insufficient — x402 payment required before full results are returned
- Invalid or missing topic/brief — endpoint may return an error or empty radar
- Pack ID not found — if packId references a nonexistent pack, lookup fails
- Rate limiting or upstream service unavailability — returns 5xx error
- Malformed JSON body — 400 bad request if required fields are missing or wrong type

## 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 response containing either a full bounty radar listing relevant opportunities for the given topic or a paste-ready bid draft for the provided job brief, depending on inputs supplied. Costs 0.015 USDC for the radar or 0.01 USDC for the bid draft, charged on Base via x402.

## 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": "milestone-nudge markdown response"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agent-utilities-milestone-nudge-free-sample-paid-x402-59e9e25d/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)