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DomainHelp Domain Availability
x402
DomainHelp Domain Availability is a paid API for AI agents from app.domainhelp.com, paid per call via x402, $0.004/call, status unknown (last checked 2026-10-31).
Checks whether a domain name is available for registration, returning a tri-state result (available, taken, or unknown)
Price / call$0.004
Success—
StatusUnknown
How this service works
Tri-state domain registration availability intelligence
Output
A tri-state availability result for the queried domain indicating whether it is available for registration, already taken/registered, or the status is unknown/indeterminate. Useful for routing next steps such as proceeding to purchase or exploring alternative names.
Example use cases
New business domain check
“I'm starting a bakery called Sunshine Loaf — is 'sunshineloaf.com' available to register?”
Startup name validation
“Before we commit to the name 'Orbitly', can you check if orbitly.com and orbitly.io are available?”
Domain squatting check before launch
“We're about to announce our product 'Stackwave' — quickly check if stackwave.com is already taken or if we can still grab it.”
Technical details
Endpoint
POSThttps://app.domainhelp.com/api/v1/domain-availability?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a fast, low-cost tri-state domain availability signal (available / taken / unknown) before committing to registration or exploring alternatives. Prefer it over WHOIS-heavy lookups when you only need availability status, not full registrant data. The sibling RDAP/WHOIS endpoint on the same platform is better when you also need DNS records, registrant identity, or DomainSure reputation scoring.
Side effects
- Domain TLD not supported — returns unknown state
- Network timeout from upstream registry lookup
- Invalid domain format in request — returns error
- Registry temporarily unavailable — indeterminate result returned
- Rate limit exceeded for high-volume queries
Tags
x402
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