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Duo Data Utilities – Text Slugifier
x402
Duo Data Utilities – Text Slugifier is a paid API for AI agents from api.duoleads.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-02).
Converts arbitrary text into a URL-safe slug with locale-aware transliteration, accent decomposition, separator options, length truncation, and stop-word removal.
Price / call$0.05
Success—
StatusUnknown
How this service works
Turn arbitrary text into a URL-safe slug. Decomposes accents, transliterates German umlauts, Scandinavian and Turkish letters, and the ligatures that lose meaning under plain NFD, lowercases, collapses separators, and truncates on a word boundary. Options for separator character, maximum length, case preservation and whether to strip stop words. Returns the slug plus what was removed.
Output
Returns a JSON object containing the generated slug string, its character length, a list of characters that were removed during processing, a boolean indicating whether truncation occurred, the original source text length, and an array of transliteration mappings showing which characters were converted and to what.
Example use cases
SEO permalink generation for blog
“I'm publishing a blog post titled 'Über die Straße: Müller's Café & the Ærø Island Story' — can you turn that into a URL slug with hyphens, lowercase, max 80 characters, using German locale so umlauts like ü and ß are properly handled?”
Product URL slug for e-commerce
“I need a clean URL slug for our product 'Crème de la Crème™ — Special Édition (2024)' — use underscores as separators, preserve case, and keep it under 50 characters.”
Filename sanitization for CMS assets
“Convert the article title 'Türkçe Haber: İstanbul'da Yeni Gelişmeler!' into a URL-safe slug using Turkish locale so the dotless i is handled correctly, with dot separators and a max length of 64.”
Technical details
Endpoint
GEThttps://api.duoleads.com/v1/text/slug?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need deterministic, locale-aware slug generation from internationalized text — especially when dealing with German umlauts, Scandinavian letters (Æ, Ø, Å), Turkish dotless-i, or ligatures that break under plain NFD normalization. It is preferable over generic slugify libraries when you need fine-grained control over separator character, maximum length with word-boundary truncation, case preservation, and visibility into exactly what was removed or transliterated during conversion.
Side effects
- Text exceeds 2048 character limit — request rejected
- Invalid max length value outside 1–512 range — validation error
- Unsupported language code — may fall back to locale-neutral processing
- Empty text input — may return empty slug or error
- Unsupported separator character — validation error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"data": {
"slug": "creme-brulee-aeroeskoebing-strasse-42",
"length": 37,
"removed": "—,",
"truncated": false,
"source_length": 36,
"transliterated": [
{
"to": "ae",
"from": "Æ"
},
{
"to": "oe",
"from": "ø"
},
{
"to": "ss",
"from": "ß"
}
]
},
"meta": {
"price_usd": "0.05",
"disclaimer": "Factual output of a deterministic computation over public data. Provided as is, with no warranty of accuracy, completeness or availability. Not investment, financial, legal, tax, medical or any other professional advice, and not a recommendation. Verify before relying on it. Terms: https://api.duoleads.com/terms",
"request_id": "01K6B7Q4ZC8H3F2M9WXR5TYN0D",
"computed_at": "2026-09-28T12:00:00.000Z",
"deterministic": true
},
"route": "/v1/text/slug",
"version": "1.0.0"
}
}Tags
x402
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