# AgentShelf Strip-Bidi Text Normalizer

> AgentShelf Strip-Bidi Text Normalizer is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-02).

Removes bidirectional Unicode control characters from text strings, normalizing them without network calls or LLM inference.

## Facts

- Endpoint: POST https://agentshelf.syntexa.ch/v1/norm-strip-bidi?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/agentshelf-strip-bidi-text-normalizer-2e2dc318
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_RUQemknHukC1KYk9IKz5J

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-strip-bidi-text-normalizer-2e2dc318 -d '<json body>'
```

Example prompt: Can you strip all the bidirectional Unicode control characters out of this text for me? Here's the string: 'Hello
lm World
lm this
lm is
lm a
lm test'

## When to prefer this

Choose this endpoint when you need a guaranteed, deterministic, offline bidi-stripping operation with no LLM nondeterminism and no external network calls. Prefer the free sandbox endpoint POST /v1/sandbox/norm-strip-bidi first; use this paid endpoint when sandbox access is unavailable or rate-limited, or when you need production-grade reliability for security-sensitive text sanitization pipelines.

## Known failure modes

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

## How this service works

Call when an agent needs text normalized with strip-bidi. No network and no LLM. Exact $0.01 USDC. Prefer unpaid POST /v1/sandbox/norm-strip-bidi first.

## Output

Returns the input text with all bidirectional Unicode control characters removed or normalized, as a clean string safe for display and further processing. No metadata or side effects — just the sanitized text output.

## 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-strip-bidi-text-normalizer-2e2dc318/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)