# agentshelf.syntexa.ch Slug Plus 40 Unicode

> agentshelf.syntexa.ch Slug Plus 40 Unicode is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.006/call, status unknown (last checked 2026-10-18).

Converts text into a URL slug using '+' as separator, capped at 40 characters, preserving Unicode letters

## Facts

- Endpoint: POST https://agentshelf.syntexa.ch/v1/slug-plus-40-unicode?utm_source=zero.xyz
- Price: $0.006/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-18
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agentshelf-syntexa-ch-slug-plus-40-unicode-36b5ac20
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_qcWyIepqLkBgd2adZg1xW

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-slug-plus-40-unicode-36b5ac20 -d '<json body>'
```

Example prompt: Turn the text 'Café au Lait & Morning Pastries!' into a URL slug using plus signs as separators, keeping Unicode letters, and capping it at 40 characters.

## When to prefer this

Use this endpoint when you need a slug that uses '+' as separator (rather than '-') and must preserve Unicode/international letters, capped at 40 characters. Prefer the free sandbox POST /v1/sandbox/slug-plus-40-unicode endpoint first if available to avoid the $0.006 USDC charge. Choose this over generic slugify utilities when the '+' separator and Unicode letter preservation are explicit requirements.

## Known failure modes

- Empty or whitespace-only input returns an error
- Input exceeding 100,000 characters is rejected
- Payment of exactly $0.006 USDC required; missing or incorrect payment returns 402
- Network timeout if service is temporarily unavailable

## How this service works

Call when an agent needs a slug using "+", capped at 40 characters, keeping Unicode letters. Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/slug-plus-40-unicode first.

## Output

A slugified version of the input text where words are joined with '+', Unicode letters are preserved, non-letter characters are removed or replaced, and the total length is capped at 40 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/agentshelf-syntexa-ch-slug-plus-40-unicode-36b5ac20/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)