# 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, $0.01/call, status unknown (last checked 2026-10-02).

Normalizes and cleans control characters from a text string, returning a sanitized version suitable for downstream processing.

## Facts

- Endpoint: POST https://one-search.one-engine.workers.dev/v3/text-normalize/control-clean/t8?utm_source=zero.xyz
- Price: $0.01/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-c6ea696d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_SbFd8qm7IvylNCC8G_JZx

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-c6ea696d -d '<json body>'
```

Example prompt: Can you clean this text for me and strip out any control characters or hidden junk before I send it to the model? Here's the raw string: 'Hello
World	foo
bar'

## When to prefer this

Choose this endpoint when you need a cheap, per-call, pay-as-you-go text normalization service specifically for stripping control characters from raw strings — especially useful for autonomous agents that process untrusted or scraped text at scale and need lightweight, low-cost sanitization without spinning up a full NLP library. Prefer this over DIY regex when you want a managed, reliable service at $0.01 per call via x402 on Base.

## Known failure modes

- Text exceeds 50,000 character limit — request rejected or truncated
- Empty text field — may return an error or empty result
- Malformed JSON request body — 400 bad request
- Payment failure via x402 on Base — 402 response, no processing
- Network or worker timeout — 5xx error

## 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 normalized, control-character-cleaned version of the input text. The exact schema is open (additionalProperties: true), but typically includes the cleaned text string ready for downstream use.

## 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-c6ea696d/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)