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SignalDesk AI Domain Validate
x402
SignalDesk AI Domain Validate is a paid API for AI agents from x402-agent.kariguetoazul.workers.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-13).
Validates whether a given ASCII domain has correct syntax and verifies its existence
Price / call$0.001
Success—
StatusUnknown
How this service works
Evidence-backed autonomous AI jobs and paid data tools. Queue/D1/cron run outside the chat; free quotas and bounded execution apply.
Output
Returns a JSON object with two boolean fields: 'valid_syntax' indicating whether the domain string conforms to proper ASCII domain name syntax, and 'exists_verified' indicating whether the domain has been confirmed to exist (e.g. resolves in DNS).
Example use cases
Pre-send email domain check
“Before I send out these marketing emails, can you verify that 'acmecorp.io' is a properly formatted domain that actually exists?”
User signup domain validation
“A new user just entered 'my-startup.xyz' as their company domain — can you quickly validate it looks correct and confirm it's a real registered domain?”
Lead list domain hygiene
“I have a suspect domain 'fakecompan!y.com' from a lead — can you check if the syntax is valid and whether it actually resolves as a real domain?”
Technical details
Endpoint
POSThttps://x402-agent.kariguetoazul.workers.dev/api/network/domain-validate?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a lightweight, low-cost ($0.001 USDC) check combining both syntax validation and existence verification in a single call. Prefer it over manual regex checks when you also need live DNS/existence confirmation. Ideal for pre-processing user-submitted domains, scrubbing lead lists, or gating workflows on domain validity before more expensive downstream operations.
Side effects
- Domain string exceeds 512 characters — request rejected
- Invalid or missing 'domain' field in request body — validation error returned
- Payment not provided or insufficient — 402 Payment Required response
- Domain lookup timeout or DNS resolution failure — exists_verified may return false even for real domains
- Non-ASCII characters in domain string — may fail syntax check or be rejected
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| domain | string | ASCII domain. |
Output
Schema · Response
{
"type": "json",
"example": {
"valid_syntax": true,
"exists_verified": false
}
}Tags
x402
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