# Creator Desk ETag Quote Utility

> Creator Desk ETag Quote Utility is a paid API for AI agents from creator-desk-x402-isolated.onrender.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-13).

Generates a quoted ETag string from a given value, useful for HTTP cache validation headers and conditional request workflows.

## Facts

- Endpoint: POST https://creator-desk-x402-isolated.onrender.com/v1/utility/etag-quote?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/creator-desk-etag-quote-utility-3e1033b4
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Yw4ZmDg0UrW0LDdBgHt0N

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 creator-desk-etag-quote-utility-3e1033b4 -d '<json body>'
```

Example prompt: Can you generate a quoted ETag string for the value 'abc123def456' using the etag-quote utility so I can use it in my HTTP cache validation header?

## When to prefer this

Choose this endpoint when you need a micro-utility to programmatically format a value as a quoted ETag string for HTTP cache control workflows, especially in agent pipelines where constructing ETag headers must be automated at low cost ($0.01 USDC per call) without standing up custom formatting logic.

## Known failure modes

- Missing or null 'value' input may return an error or empty result
- Unsupported options keys may be silently ignored or cause a 400 error
- Service cold-start on Render.com free tier may cause initial latency or timeout
- Payment failure via x402 protocol will prevent execution and return a 402 response

## How this service works

Machine-callable x402-paid utilities for autonomous agents.

## Output

Returns a JSON object containing a 'result' field with the quoted ETag string and an 'operation' field confirming 'etag_quote', ready to be used directly in HTTP ETag or If-Match headers.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "result": "example",
  "operation": "etag_quote"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/creator-desk-etag-quote-utility-3e1033b4/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from creator-desk-x402-isolated.onrender.com](https://www.zero.xyz/host/creator-desk-x402-isolated.onrender.com/llms.txt)