# Syntexa AgentShelf Slug Underscore 160 ASCII

> Syntexa AgentShelf Slug Underscore 160 ASCII is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-02).

Converts arbitrary text into a URL-friendly slug using underscores as separators, ASCII-folded, capped at 160 characters

## Facts

- Endpoint: POST https://agentshelf.syntexa.ch/v1/slug-underscore-160-ascii?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/syntexa-agentshelf-slug-underscore-160-ascii-11417480
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_aUuVyrdnrughAuLoUiPPK

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 syntexa-agentshelf-slug-underscore-160-ascii-11417480 -d '<json body>'
```

Example prompt: Can you slugify this title — 'Héllo Wörld: The Ultimate Gïde to Ågent APIs' — using underscores and make sure it's ASCII-safe and no longer than 160 characters?

## When to prefer this

Choose this endpoint when you specifically need underscore-separated slugs (rather than hyphen-separated) with ASCII folding and a 160-character length cap. Prefer the free sandbox endpoint POST /v1/sandbox/slug-underscore-160-ascii for testing before incurring the $0.001 USDC cost. Use this over generic LLM-based slug generation when you need deterministic, reproducible, non-LLM output.

## Known failure modes

- Empty or missing 'text' field returns a validation error
- Input exceeding 100,000 characters is rejected
- Payment not provided or insufficient results in HTTP 402 payment required
- Network or service unavailability returns 5xx error

## How this service works

Call when an agent needs a slug using "_", capped at 160 characters, ASCII-folded. Exact $0.001 USDC. Prefer unpaid POST /v1/sandbox/slug-underscore-160-ascii first.

## Output

A slug string derived from the input text, with non-ASCII characters folded to their ASCII equivalents, spaces and special characters replaced by underscores, and the result capped at 160 characters.

## 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/syntexa-agentshelf-slug-underscore-160-ascii-11417480/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)