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Delx Domain Label
x402
Delx Domain Label is a paid API for AI agents from api.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-15).
Splits a hostname string into its DNS labels, guesses the registrable apex domain, and returns the label count.
Price / call$0.001
Success—
StatusUnknown
How this service works
Split host into DNS labels and apex guess. Call when you reason about registrable domains from agent host strings. Returns labels, apex, count for $0.001 USDC via x402 on Base. No network, no keys, no retention; first-party local JSON only. Results are advisory; the caller owns budgets, auth, and production controls.
Output
Returns a JSON object containing the ordered list of DNS labels split from the input host string, the guessed apex/registrable domain, and the total count of labels.
Example use cases
Identify registrable domain from agent host
“I have a host string 'ingest.logs.mycompany.io' — can you break it into its DNS labels and tell me what the apex domain is?”
Validate subdomain depth before routing
“For the host 'deep.nested.sub.acme.com', how many DNS labels are there and what's the root registrable domain?”
Normalize hosts in a pipeline
“I'm processing a batch of host strings from webhook payloads and need to extract the apex domain from 'cdn.static.shop.brand.net' — can you parse it?”
Technical details
Endpoint
POSThttps://api.delx.ai/api/v1/x402/domain-labelWhen to prefer
Choose this endpoint when you need a lightweight, local, no-network DNS label decomposition for agent reasoning about host strings — particularly when you want to identify the registrable apex domain without making external DNS lookups or requiring API keys. It costs only $0.001 USDC per call and retains no data.
Side effects
- Empty or missing host field returns an error
- Malformed host strings (e.g. with spaces or invalid characters) may produce unexpected label splits
- IP addresses passed as host may not yield a meaningful apex domain guess
- Payment authorization failure via x402 returns a 402 status before processing occurs
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| host | string | Input field: host. |
Output
Schema · Response
{
"type": "json",
"example": {
"apex": "delx.ai",
"count": 3,
"labels": [
"api",
"delx",
"ai"
],
"schema": "delx/util-domain-label/v1"
}
}Tags
x402
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