# Creator Desk Null Count Utility

> Creator Desk Null Count 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).

Counts the number of null values in a given input value or data structure

## Facts

- Endpoint: POST https://creator-desk-x402-isolated.onrender.com/v1/utility/null-count?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-null-count-utility-8d88501e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_6KF7sv_SW_17O0VbHxOsY

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-null-count-utility-8d88501e -d '<json body>'
```

Example prompt: Count how many null values are in this JSON object: {"name": null, "age": 30, "email": null, "city": "NYC"}.

## When to prefer this

Use this endpoint when you need a quick, paid, machine-callable utility to count nulls in a value or data structure without setting up your own logic, especially in autonomous agent pipelines where you want a standardized microservice for null detection at $0.01 USDC per call via x402 payment.

## Known failure modes

- Malformed input body returns an error response
- Missing 'value' field may result in a zero count or error depending on server validation
- Service unavailability on Render free tier cold starts may cause timeout
- Unexpected input types not handled by the utility may return an error or incorrect count

## How this service works

Machine-callable x402-paid utilities for autonomous agents.

## Output

Returns a JSON object containing the count of null values found in the input (result field) and the operation name 'null_count' confirming what was performed.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/creator-desk-null-count-utility-8d88501e/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)