# ONE Engine Text Normalize Control-Clean

> ONE Engine Text Normalize Control-Clean 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 and control-cleans input text by removing or standardizing control characters, whitespace, and formatting artifacts.

## Facts

- Endpoint: POST https://one-search.one-engine.workers.dev/v3/text-normalize/control-clean/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-normalize-control-clean-1d69f3c9
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ucl63_UZOLaS6HfBzeh-z

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-normalize-control-clean-1d69f3c9 -d '<json body>'
```

Example prompt: Clean up this text by removing control characters and normalizing whitespace — it's raw scraped content and has a bunch of invisible junk in it: [paste text here].

## When to prefer this

Choose this endpoint when you need a cheap, pay-per-call text normalization step for an autonomous agent pipeline — especially useful for cleaning scraped, copy-pasted, or user-generated text of control characters and whitespace anomalies before feeding into NLP models, embeddings, or storage. At $0.001 USDC per call it is well-suited for high-volume preprocessing tasks where a lightweight sanitization pass is needed without a heavy ML model.

## Known failure modes

- Text exceeds 50,000 character limit — request rejected
- Empty or missing 'text' field — validation error
- Payment not attached or insufficient USDC — 402 Payment Required
- Malformed JSON body — 400 Bad Request
- Cloudflare Worker timeout for extremely complex inputs

## How this service works

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

## Output

A JSON object containing the normalized, control-cleaned version of the input text with control characters removed and whitespace standardized. The exact output fields are dynamically typed but typically include the cleaned text string.

## 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-normalize-control-clean-1d69f3c9/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)