# ONE Engine Text Whitespace Normalizer

> ONE Engine Text Whitespace Normalizer is a paid API for AI agents from one-search.one-engine.workers.dev, paid per call via x402, $0.0005/call, status unknown (last checked 2026-10-02).

Normalizes whitespace in a text string, collapsing irregular spacing, tabs, and newlines into consistent whitespace.

## Facts

- Endpoint: POST https://one-search.one-engine.workers.dev/v3/text-normalize/whitespace/t1?utm_source=zero.xyz
- Price: $0.0005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/one-engine-text-whitespace-normalizer-ce57fcb0
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_wZM35yY0EV_-p2YWmk0bn

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 one-engine-text-whitespace-normalizer-ce57fcb0 -d '<json body>'
```

Example prompt: Can you normalize the whitespace in this text for me — collapse all the extra spaces, tabs, and irregular newlines into clean single spaces: 'Hello   world,		this   is  a   messy    string with   inconsistent   spacing.'

## When to prefer this

Choose this endpoint when you need a cheap, fast, pay-per-call whitespace normalization step for text preprocessing pipelines — especially when running autonomous agents that need to clean up scraped, copy-pasted, or user-supplied text before passing it to NLP tools, LLMs, or storage. At $0.0005 USDC per call on Base via x402, it's cost-effective for high-volume text cleaning without a subscription.

## Known failure modes

- Text exceeds 50,000 character limit — returns an error response
- Empty or missing 'text' field — returns a validation error
- Payment failure via x402 protocol — returns 402 Payment Required before processing

## How this service works

Low-cost pay-per-call utility APIs for autonomous agents using x402 on Base.

## Output

Returns a JSON object containing the input text with all whitespace normalized — multiple consecutive spaces, tabs, and irregular newlines collapsed into consistent single spaces, with leading/trailing whitespace trimmed.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "text"
 ],
 "properties": {
  "text": {
   "type": "string",
   "description": "Text up to 50000 characters"
  }
 }
}
```

## Response schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/one-engine-text-whitespace-normalizer-ce57fcb0/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from one-search.one-engine.workers.dev](https://www.zero.xyz/host/one-search.one-engine.workers.dev/llms.txt)