# 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, $0.001/call, status unknown (last checked 2026-10-02).

Normalizes whitespace in a text string, collapsing or standardizing spacing, tabs, and line breaks.

## Facts

- Endpoint: POST https://one-search.one-engine.workers.dev/v3/text-normalize/whitespace/t3?utm_source=zero.xyz
- Price: $0.001/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-f6440cb9
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_arvRj7lOoIdnQk3iVWGmg

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-f6440cb9 -d '<json body>'
```

Example prompt: Can you normalize the whitespace in this text for me — collapse any extra spaces, tabs, or stray line breaks into single spaces: 'Hello   world!   This   is   a   test.'

## When to prefer this

Use this endpoint when you need a lightweight, low-cost ($0.001 USDC) pay-per-call solution for whitespace normalization, especially in agentic pipelines on Base that already use x402 for micropayments. Ideal for cleaning scraped, copy-pasted, or OCR-extracted text before further processing.

## Known failure modes

- Text exceeds 50,000 character limit — request rejected or truncated
- Empty or missing 'text' field — validation error returned
- Payment failure via x402 — 402 response before processing begins
- Malformed JSON body — 400 bad request

## How this service works

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

## Output

Returns an object containing the whitespace-normalized version of the input text, with extraneous spaces, tabs, and line breaks collapsed or standardized according to whitespace normalization rules.

## 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-f6440cb9/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)