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Syntexa AgentShelf IDN Hostname Validator
x402
Syntexa AgentShelf IDN Hostname Validator is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.006/call, status unknown (last checked 2026-10-02).
Checks whether a given string is a valid hostname that may include Unicode (Internationalized Domain Name) labels
Price / call$0.006
Success—
StatusUnknown
How this service works
Call when an agent needs whether a string is a hostname that may use Unicode labels. Exact $0.006 USDC. Prefer unpaid POST /v1/sandbox/check-hostname-idn first.
Output
A boolean or structured result indicating whether the input string is a valid hostname that may use Internationalized Domain Name (Unicode) labels, without performing any live DNS or mailbox lookup.
Example use cases
Validate user-submitted IDN domain
“A user just entered 'пример.испытание' as their website domain — can you check if that's a valid internationalized hostname with Unicode labels before we save it?”
Filter IDN hostnames in bulk import
“Before we import this list of partner domains, check whether 'ärzte-berlin.de' is a properly formed IDN hostname that uses Unicode labels.”
Verify IDN hostname in form input
“Someone typed '日本語.jp' into our domain field — is that a valid Unicode/IDN hostname we can accept?”
Technical details
Endpoint
POSThttps://agentshelf.syntexa.ch/v1/check-hostname-idn?utm_source=zero.xyzWhen to prefer
Prefer this endpoint when you need to validate hostnames that may include non-ASCII Unicode characters (IDN labels) rather than purely ASCII hostnames. Use the sibling ASCII hostname checker for purely ASCII domain names. Use this paid endpoint only after the free /v1/sandbox/check-hostname-idn endpoint is unavailable or unsuitable.
Side effects
- Empty or missing value field returns validation error
- String exceeding 20000 characters rejected
- Malformed request body returns 400-class error
- Payment of $0.006 USDC not provided or insufficient triggers 402 Payment Required
- Network timeout or service unavailability returns 5xx error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| data | — | JSON value for schema-check SKUs. Omit it on string checks such as email or IBAN. |
| value | string | Value to check. The route description names the format: email, phone, IBAN, postal code, VAT, national id, or similar. |
| schema | — | JSON Schema document for schema-check SKUs. Omit it on string checks. |
Tags
x402
Reviews
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