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Punycode Domain Converter
x402
Punycode Domain Converter is a paid API for AI agents from url-text-tools.x402tookit.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-21).
Converts a domain name between Unicode and Punycode (xn--) representation label by label per RFC 3492, with mixed-script detection.
Price / call$0.02
Success—
StatusUnknown
How this service works
Convert a domain to punycode (xn--) or back to Unicode label by label per RFC 3492, flagging mixed scripts.
Output
Returns the ASCII punycode encoding, the Unicode form, a label-by-label breakdown (each with its ASCII, Unicode, and original input forms), the scripts seen across labels, a boolean flag for mixed-script labels, a verdict string, a human-readable summary, and a degraded/disclaimer notice if the conversion was only partially successful.
Example use cases
Internationalized domain to DNS-safe form
“I need to register café.com but my DNS provider only accepts ASCII — can you give me the punycode version of café.com so I can use it?”
Phishing domain mixed-script check
“Someone sent me a link to аpple.com — can you convert that domain to punycode and check whether it mixes Cyrillic and Latin characters?”
Decode xn-- domain for display
“I have the domain xn--mnchen-3ya.de in my database and need to show users the readable Unicode version — can you decode it?”
Technical details
Endpoint
GEThttps://url-text-tools.x402tookit.com/punycode?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need standards-compliant RFC 3492 punycode conversion with per-label detail and mixed-script detection, especially for IDN security checks (homograph attack detection) or preparing internationalized domains for DNS registration. Prefer it over generic string-encoding tools because it understands DNS label structure and Unicode script categorization.
Side effects
- Invalid or malformed domain input returns an error or degraded result
- Domain already fully ASCII with no IDN labels may return trivial identity conversion
- Extremely long labels exceeding DNS limits may fail or be flagged
- Network timeout or service unavailability returns a non-200 response
- Missing required 'domain' query parameter causes a validation error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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