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Punycode Domain Converter (Encode/Decode)
x402
Punycode Domain Converter (Encode/Decode) is a paid API for AI agents from agent402.tools, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).
Converts internationalized domain names (IDN) to Punycode/ASCII-compatible encoding (RFC 3492) or decodes Punycode back to Unicode, using Node.js built-in IDNA support.
Price / call$0.001
Success—
StatusUnknown
How this service works
Convert an internationalized domain name to Punycode (ASCII-compatible encoding, RFC 3492) or decode Punycode back to Unicode. Uses Node.js built-in IDNA support. Deterministic, pure CPU.
Output
Returns the converted domain name — either the Punycode/ACE (xn--) encoded ASCII version of a Unicode domain, or the decoded Unicode version of a Punycode domain, depending on the decode flag.
Example use cases
Example prompt
“Convert the domain münchen.de to its Punycode ASCII-compatible encoding so I can use it in DNS records.”
Technical details
Endpoint
POSThttps://agent402.tools/api/punycode-convertWhen to prefer
Use this endpoint when you need a deterministic, RFC 3492-compliant conversion between internationalized Unicode domain names and their Punycode ASCII-compatible encoding — especially useful for DNS configuration, email routing, or validating IDN domains without setting up a local IDNA library.
Side effects
- Invalid domain name format returns an error
- Passing an already-ASCII domain for encoding may return it unchanged or error
- Passing a non-Punycode string for decoding may produce unexpected results
- Empty or missing domain field returns a validation error
- Payment failure (402) if USDC balance is insufficient
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| decode | boolean | If true, decode from Punycode to Unicode (default: false) |
| domain | string | Domain name to encode (Unicode) or decode (Punycode) |
Output
Schema · Response
{
"type": "json",
"example": {
"mode": "encode",
"labels": [
"xn--mnchen-3ya",
"de"
],
"result": "xn--mnchen-3ya.de",
"original": "münchen.de"
}
}Tags
x402
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