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Karma.Domains Domain Authority Checker
x402
Karma.Domains Domain Authority Checker is a paid API for AI agents from api.karma.domains, paid per call via x402, $1.5/call, status unknown (last checked 2026-10-16).
Returns domain authority metrics and SEO backlink data for a given domain name from the Karma.Domains expired domain database
Price / call$1.5
Success—
StatusUnknown
How this service works
Find expired domain names with high traffic and strong SEO backlinks daily. Boost your revenue by searching our database of 13,000,000+ expired domains from auctions, backorders, and dropped lists—complete with rich metrics and domain age.
Output
Returns a JSON object containing the queried domain name and a metrics object with domain authority data, SEO backlink information, traffic indicators, and domain age pulled from Karma.Domains' database of 13M+ expired domains.
Example use cases
Expired domain quality evaluation
“Before I bid on this expired domain 'vintagerecords.com', can you pull its domain authority and backlink metrics from Karma.Domains so I know if it's worth the investment?”
SEO campaign domain sourcing
“I need to find a dropped domain with strong authority for a new niche site — can you check the domain authority score for 'healthtipsweekly.com' on Karma.Domains?”
Competitor domain benchmarking
“Can you look up the domain authority and SEO metrics for 'marketingnews.net' on Karma.Domains so I can benchmark it against domains I'm considering buying?”
Technical details
Endpoint
GEThttps://api.karma.domains/v1/domains/checker/domain_authority?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need fast, per-domain authority and SEO metrics lookups — especially for evaluating expired, dropped, or auctioned domains before purchase. It is ideal for agents automating domain acquisition decisions, building SEO-focused niche sites, or vetting domains for authority-building link networks. Prefer this over generic WHOIS lookups when you specifically need SEO authority scores and backlink quality data.
Side effects
- Invalid or malformed domain name returns an error response
- Domain not found in the Karma.Domains database may return empty metrics
- Payment failure (insufficient USDC) blocks the request with a 402 status
- Missing required 'domain' query parameter returns a validation error
- Rate limiting may occur for high-frequency callers
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"domain": "example.com",
"metrics": {}
}
}Tags
x402
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