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Domain Format Check for Vendor Screening
x402
Domain Format Check for Vendor Screening is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-02).
Validates that a hostname has correct public-domain syntax and normalizes internationalized domain names (IDNs) using DNS data only, without sending email or verifying inbox existence.
Price / call$0.01
Success—
StatusUnknown
How this service works
Domain format check for Vendor screening: Check a hostname for valid public-domain syntax and normalize IDNs. DNS data only; does not send email or verify that an inbox exists.
Output
Returns whether the submitted hostname passes valid public-domain syntax rules, along with the normalized (ASCII/punycode) form of any internationalized domain name. Does not perform email delivery checks or inbox verification.
Example use cases
Vendor onboarding domain check
“Before I add a new supplier to our approved vendor list, can you validate that their domain 'bürotechnik-gmbh.de' has correct public-domain syntax and show me its normalized form?”
Bulk vendor list validation
“I have a vendor contact whose domain is 'xn--nxasmq6b.com' — can you confirm it's a properly formatted public DNS domain and normalize it for our records?”
Procurement due diligence screening
“As part of our third-party risk review, please check whether 'supply-chain-partners.co.uk' is syntactically valid as a public domain — we don't need inbox verification, just the DNS format check.”
Technical details
Endpoint
POSThttps://market.datapackvibe.com/x402/demand-domain-domain-format-vendor-screening?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need lightweight, fast domain syntax validation and IDN normalization without triggering any network activity like SMTP probing or MX lookups. It is ideal for vendor screening pipelines, procurement due diligence, or any workflow where you need to confirm a hostname is properly formed before storing or acting on it.
Side effects
- Invalid or malformed domain string returns a syntax error or negative validation result
- Private/reserved hostnames (e.g. localhost, .internal) may be flagged as non-public
- IDN normalization may fail for unsupported Unicode character sequences
- Empty or missing domain field causes a request validation error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| domain | string | Public DNS domain, e.g. example.com. |
Tags
x402
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