# ONE Engine Text Normalize – Remove Blank Lines

> ONE Engine Text Normalize – Remove Blank Lines is a paid API for AI agents from one-search.one-engine.workers.dev, paid per call via x402, $0.0015/call, status unknown (last checked 2026-10-02).

Strips or collapses blank lines from a text string, normalizing whitespace to produce cleaner output.

## Facts

- Endpoint: POST https://one-search.one-engine.workers.dev/v3/text-normalize/blank-lines/t4?utm_source=zero.xyz
- Price: $0.0015/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-remove-blank-lines-724414cd
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_AufPQ6lO1YiqWKmHjmbh5

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-remove-blank-lines-724414cd -d '<json body>'
```

Example prompt: Can you clean up this text by removing all the blank lines from it? Here's the content: [paste multi-line text with empty lines]

## When to prefer this

Choose this endpoint when you need a cheap, fast, single-purpose operation to strip blank lines from text as part of a preprocessing pipeline. At $0.0015 per call it is cost-effective for high-volume agent workflows. Prefer this over a general-purpose LLM call for blank-line removal since it is deterministic, fast, and does not consume LLM tokens.

## Known failure modes

- Text exceeds 50000 character limit — request rejected
- Empty or missing 'text' field — validation error
- Payment failure via x402 protocol — 402 response before processing
- Network timeout on the Cloudflare Workers edge runtime

## How this service works

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

## Output

Returns a processed text object where blank lines have been removed or collapsed, leaving only lines with actual content. The response schema is open-ended (additionalProperties: true), likely containing the normalized 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-remove-blank-lines-724414cd/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)