# Creator Desk JSON Type Checker

> Creator Desk JSON Type Checker 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 2026-10-12).

Determines the JSON type of an arbitrary value (string, number, boolean, array, object, null, etc.)

## Facts

- Endpoint: POST https://creator-desk-x402-isolated.onrender.com/v1/utility/json-type?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/creator-desk-json-type-checker-6e8e385a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_cwS8sjx-16epkvFWfuLdJ

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-json-type-checker-6e8e385a -d '<json body>'
```

Example prompt: What is the JSON type of this value: [1, 2, 3]? I need to know if it's classified as an array, object, or something else.

## When to prefer this

Choose this endpoint when you need a lightweight, paid utility call to programmatically determine the JSON type of any value — especially in agent pipelines where type safety matters before downstream processing and you want a simple, authoritative type label returned without running your own logic.

## Known failure modes

- Missing 'value' field in request body may return an error or classify as null/undefined
- Malformed JSON body returns a parse error
- Network timeout if the Render.com instance is cold-starting
- Payment failure via x402 protocol prevents the call from completing

## How this service works

Machine-callable x402-paid utilities for autonomous agents.

## Output

Returns a JSON object with a 'result' field containing the detected JSON type name (e.g. 'string', 'number', 'boolean', 'array', 'object', 'null') and an 'operation' field confirming 'json_type'.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/creator-desk-json-type-checker-6e8e385a/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)