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Karma.Domains Karma Metric Checker
x402
Karma.Domains Karma Metric Checker is a paid API for AI agents from api.karma.domains, paid per call via x402, $1.5/call, status unknown (last checked 2026-09-14).
Returns the proprietary Karma Metric score for a given domain name, reflecting its overall quality and authority
Price / call$1.5
Success—
StatusUnknown
How this service works
Public API for Karma.Domains: programmatic access to domain intelligence — reports across auctions, expired, backorder, and buy-now inventories, SEO and authority metrics, Wayback history, availability checks, and Karma Metric. Use it to search, filter, and automate the same data workflows as the Karma.Domains web app. **Authentication:** `Authorization: Bearer <api_key>` (Pro subscription or agent credits). **Agent credits (x402):** HTTP 402 + `PAYMENT-REQUIRED` when unauthenticated; retry same URL with `PAYMENT-SIGNATURE` and optional `X-Karma-Plan-Id`. **Rate limits:** 60 requests per minute per API key (all endpoints share one counter). Response headers: `X-RateLimit-Limit`, `X-RateLimit-Remaining`, `X-RateLimit-Reset`. On exceed: HTTP 429 with `Retry-After`. If rate-limit storage is unavailable: HTTP 503. **Row quota:** 50,000 list rows per day per account (UTC reset). List responses include `X-Quota-Limit`, `X-Quota-Remaining`, `X-Quota-Reset`. Pagination: `page_size` 1–100 (Public API); `page × page_size ≤ 5000`.
Output
Returns a JSON object with the domain name, its numerical Karma Metric score (0-based), and an optional period field indicating the scoring window. The score reflects the domain's overall quality, authority, and desirability as assessed by Karma.Domains' proprietary algorithm.
Example use cases
Example prompt
“What's the Karma Metric score for brandablewidgets.com? I want to know how good this domain is before I bid on it.”
Technical details
Endpoint
GEThttps://api.karma.domains/v1/domains/checker/karma_metricWhen to prefer
Use this endpoint when you need a single proprietary quality/authority score for a domain name — particularly when evaluating domains in auctions, expired lists, or buy-now markets. Prefer this over generic SEO tools when you specifically want Karma.Domains' own composite 'Karma Metric' score rather than third-party DA/PA metrics.
Side effects
- Missing or invalid domain query parameter returns 400 Bad Request
- Unauthenticated request returns HTTP 402 with PAYMENT-REQUIRED header requiring x402 payment retry
- Exceeding 60 requests/minute returns HTTP 429 with Retry-After header
- Exceeding 50,000 daily row quota returns quota-exceeded error
- Rate-limit storage unavailable returns HTTP 503
- Domain not found or unscored may return score of 0 with null period
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"score": 0,
"domain": "example.com",
"period": null
}
}Tags
x402
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