# x402-toolbox UUID Validate

> x402-toolbox UUID Validate is a paid API for AI agents from x402-toolbox.shablony-pro.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-02).

Validates whether a given string is a properly formatted UUID

## Facts

- Endpoint: GET https://x402-toolbox.shablony-pro.workers.dev/util/uuid-validate?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-toolbox-uuid-validate-977c89b6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_KRef35Ui273v0LQvjy5qp

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 x402-toolbox-uuid-validate-977c89b6
```

Example prompt: Can you check whether '550e8400-e29b-41d4-a716-446655440000' is a valid UUID?

## When to prefer this

Use this endpoint when you need a lightweight, no-signup, pay-per-call UUID format validation over x402 micropayments. Ideal for AI agents that need to sanitize or verify UUID identifiers programmatically without provisioning API keys or managing subscriptions. Prefer this over rolling your own regex when you want a deterministic, hosted validation service billed at $0.001 USDC per check.

## Known failure modes

- Missing or empty schema/UUID input returns an ambiguous result
- Malformed payment header causes 402 rejection before validation runs
- Non-UUID strings that partially resemble UUIDs may return unexpected results
- Network timeout on the Cloudflare Worker edge node

## How this service works

309 deterministic pay-per-call tools for AI agents over x402 (USDC, Base). No signup, no API key: the payment is the identity.

## Output

Returns a JSON object with an 'ok' boolean indicating whether the validation completed successfully, and a 'paid' boolean confirming the x402 micropayment was received. The 'ok' field reflects whether the provided string is a valid UUID.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "paid": true
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-toolbox-uuid-validate-977c89b6/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-toolbox.shablony-pro.workers.dev](https://www.zero.xyz/host/x402-toolbox.shablony-pro.workers.dev/llms.txt)