# Creator Desk Case Upper Utility

> Creator Desk Case Upper 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).

Converts a given string value to uppercase using a paid x402 micro-utility endpoint.

## Facts

- Endpoint: POST https://creator-desk-x402-isolated.onrender.com/v1/utility/case-upper?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-case-upper-utility-ab05ec7e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_tey3CfJmSTULwCrdVuw3U

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-case-upper-utility-ab05ec7e -d '<json body>'
```

Example prompt: Can you uppercase the text 'hello world' for me using the case-upper utility?

## When to prefer this

Choose this endpoint when you need a simple, reliable, pay-per-use uppercase conversion as part of an autonomous agent workflow that already uses x402 micropayments, and you want a stateless, idempotent transformation without provisioning your own text-processing infrastructure.

## Known failure modes

- Missing or null 'value' field may return an error or empty result
- Payment failure via x402 protocol blocks the request
- Malformed options object may cause a 400 error
- Non-string input for 'value' may produce unexpected results or errors
- Service unavailability on Render free-tier hosting may cause timeouts

## How this service works

Machine-callable x402-paid utilities for autonomous agents.

## Output

Returns a JSON object containing the uppercased string under the 'result' field and the operation name ('case_upper') under the 'operation' field.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/creator-desk-case-upper-utility-ab05ec7e/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)