# agentshelf.syntexa.ch Strip Control Character Normalizer

> agentshelf.syntexa.ch Strip Control Character Normalizer is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.009/call, status unknown (last checked 2026-10-24).

Removes or normalizes control characters from text strings without network calls or LLM involvement

## Facts

- Endpoint: POST https://agentshelf.syntexa.ch/v1/norm-strip-control?utm_source=zero.xyz
- Price: $0.009/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-24
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agentshelf-syntexa-ch-strip-control-character-normalizer-741b5a43
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Bge-deqGLfiOcQMocLGsl

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 agentshelf-syntexa-ch-strip-control-character-normalizer-741b5a43 -d '<json body>'
```

Example prompt: Can you strip all control characters out of this text for me: 'Hello\u0000World\u001b[31m\u0007test'?

## When to prefer this

Choose this endpoint when you need a deterministic, rule-based strip of control characters from text with no LLM involvement and no external network calls. It is ideal for sanitizing user input, cleaning log data, or preprocessing strings before storage or display, where consistency and predictability matter more than intelligent transformation. If a free sandbox alternative at POST /v1/sandbox/norm-strip-control is available, prefer that first to avoid the $0.009 USDC charge.

## Known failure modes

- Empty or missing 'text' field returns a validation error
- Input exceeding 100,000 characters is rejected
- Payment failure or insufficient USDC balance blocks the request
- Malformed JSON body returns a 400 error

## How this service works

Call when an agent needs text normalized with strip-control. No network and no LLM. Exact $0.009 USDC. Prefer unpaid POST /v1/sandbox/norm-strip-control first.

## Output

A cleaned version of the input text with all control characters stripped or normalized, returned as a plain string without any non-printable ASCII control codes.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "text": {
   "type": "string",
   "examples": [
    "Hello, World!"
   ],
   "maxLength": 100000,
   "minLength": 1,
   "description": "Input for this SKU. The route description says whether it is plain text, a URL, base64 bytes, or an already-encoded token."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agentshelf-syntexa-ch-strip-control-character-normalizer-741b5a43/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agentshelf.syntexa.ch](https://www.zero.xyz/host/agentshelf.syntexa.ch/llms.txt)