# Slug Underscore 24 ASCII (agentshelf.syntexa.ch)

> Slug Underscore 24 ASCII (agentshelf.syntexa.ch) is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-29).

Converts arbitrary text into a URL-safe slug using underscores as separators, ASCII-folded and capped at 24 characters.

## Facts

- Endpoint: POST https://agentshelf.syntexa.ch/v1/slug-underscore-24-ascii?utm_source=zero.xyz
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-29
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/slug-underscore-24-ascii-agentshelf-syntexa-ch-5ec01216
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_med94dSeMMMeA_sppv17K

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 slug-underscore-24-ascii-agentshelf-syntexa-ch-5ec01216 -d '<json body>'
```

Example prompt: Can you turn the text 'Héllo Wörld! This is a Test' into an underscore slug capped at 24 characters with ASCII folding?

## When to prefer this

Choose this endpoint when you specifically need underscore-separated slugs (not hyphen-based) with ASCII folding and a strict 24-character cap — useful for database keys, filenames, or identifiers that require these exact constraints. Prefer the free sandbox variant (/v1/sandbox/slug-underscore-24-ascii) when available to avoid the $0.003 USDC charge.

## Known failure modes

- Empty or missing text field returns a validation error
- Text consisting entirely of non-transliterable characters may produce an empty or underscore-only slug
- Payment failure (HTTP 402) if USDC balance is insufficient
- Network timeout for very large inputs near the 100,000 character limit

## How this service works

Call when an agent needs a slug using "_", capped at 24 characters, ASCII-folded. Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/slug-underscore-24-ascii first.

## Output

Returns a slugified string derived from the input text: all characters are ASCII-folded (accents removed, non-ASCII replaced), spaces and special characters are replaced with underscores, and the result is truncated to a maximum of 24 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/slug-underscore-24-ascii-agentshelf-syntexa-ch-5ec01216/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)