# ONE Engine UUID Validator

> ONE Engine UUID Validator is a paid API for AI agents from one-search.one-engine.workers.dev, paid per call via x402, $0.0009/call, status unknown (last checked 2026-10-02).

Validates whether a given string is a properly formatted UUID

## Facts

- Endpoint: POST https://one-search.one-engine.workers.dev/v1/uuid/validate?utm_source=zero.xyz
- Price: $0.0009/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/one-engine-uuid-validator-7bd98dc6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_KvAcwrjUwh8JkVMuYDnCU

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 one-engine-uuid-validator-7bd98dc6 -d '<json body>'
```

Example prompt: Can you check if '550e8400-e29b-41d4-a716-446655440000' is a valid UUID before I use it as a record identifier?

## When to prefer this

Choose this endpoint when you need a lightweight, low-cost (~$0.0009 USDC) programmatic check on whether a string is a valid UUID — especially within agentic workflows on Base using x402 micropayments where spinning up a full validation library is impractical or where you need a pay-per-use utility without managing infrastructure.

## Known failure modes

- Missing 'value' field in request body returns an error
- Empty string input may return valid: false
- Non-string types may cause schema validation failure
- Network or worker timeout returns no result
- Payment failure via x402 blocks the request before validation occurs

## How this service works

Low-cost pay-per-call utility APIs for autonomous agents using x402 on Base.

## Output

Returns a JSON object with a boolean field 'valid' indicating whether the submitted string conforms to the UUID format specification (e.g. {"valid": true} or {"valid": false}).

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "valid": true
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/one-engine-uuid-validator-7bd98dc6/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from one-search.one-engine.workers.dev](https://www.zero.xyz/host/one-search.one-engine.workers.dev/llms.txt)