# PennyRail Text Normalize Whitespace

> PennyRail Text Normalize Whitespace is a paid API for AI agents from pennyrail.vercel.app, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).

Normalizes and cleans whitespace in a given text string, removing extra spaces, tabs, and line breaks

## Facts

- Endpoint: POST https://pennyrail.vercel.app/api/p/nano/text.normalize-whitespace--clean-whitespace
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/pennyrail-text-normalize-whitespace-c620ec64
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_hKT9-4KGbpoCOqlD6ZP4V

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 pennyrail-text-normalize-whitespace-c620ec64 -d '<json body>'
```

Example prompt: Can you clean up the whitespace in this text for me? It has a bunch of extra spaces and irregular spacing: 'Hello,   world!  This   is   a   test.  '

## When to prefer this

Use this endpoint when you need a lightweight, pay-per-call text whitespace normalization step in a pipeline without spinning up your own string processing logic. Best suited for sporadic or low-volume calls where a $0.001 micro-payment per call is acceptable. Prefer this over local regex-based solutions when operating in a serverless agent environment that routes through x402-enabled micropayment infrastructure.

## Known failure modes

- Missing required 'input' field returns a validation error
- Non-string input may cause a type error or unexpected behavior
- Payment failure via x402 protocol returns HTTP 402 before processing begins
- Very large input strings may time out or be truncated

## How this service works

Machine-readable settlement service

## Output

Returns a JSON object containing the cleaned, whitespace-normalized version of the input string, with extra spaces collapsed, leading/trailing whitespace removed, and irregular spacing standardized.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "additionalProperties": true
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/pennyrail-text-normalize-whitespace-c620ec64/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from pennyrail.vercel.app](https://www.zero.xyz/host/pennyrail.vercel.app/llms.txt)