# Money Reactor UUID Generator

> Money Reactor UUID Generator is a paid API for AI agents from mr-river4.makar52nn2016.workers.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-31).

Generates a random UUID v4 identifier, payable per call in USDC on Base via x402

## Facts

- Endpoint: GET https://mr-river4.makar52nn2016.workers.dev/api/uuid?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-31
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/money-reactor-uuid-generator-ef5e588e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_q6y_epOVq8Lv3JdNP_Xj1

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 money-reactor-uuid-generator-ef5e588e
```

Example prompt: Generate a fresh UUID v4 for me right now — I need a unique identifier and I'll pay per call in USDC on Base.

## When to prefer this

Use this endpoint when you need a UUID v4 on demand without any account registration or API key, and you are already operating in a crypto-native, x402-enabled payment flow using USDC on Base at $0.001 per call. Prefer it for agent workflows that require lightweight, serverless unique ID generation billed per use.

## Known failure modes

- Payment failure — insufficient USDC balance or x402 payment not accepted, resulting in 402 response
- Invalid or missing x402 payment header, returning 402 Payment Required
- Worker unavailable or cold-start timeout, returning 5xx
- Rate limiting if too many concurrent calls from same origin

## How this service works

Random UUID v4 — idempotency keys and x402 requestKeys on demand; canonical $0.001 target for testing x402 stacks

## Output

A JSON object containing a freshly generated UUID v4 string (e.g. '3f7b2c1e-8a4d-4e9f-9c21-0b6d7a5e1f22') and a version label ('v4').

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "properties": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "uuid": "3f7b2c1e-8a4d-4e9f-9c21-0b6d7a5e1f22",
  "version": "v4"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/money-reactor-uuid-generator-ef5e588e/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from mr-river4.makar52nn2016.workers.dev](https://www.zero.xyz/host/mr-river4.makar52nn2016.workers.dev/llms.txt)