# StablecoinGateways, pay as you go, x402 pay per call, GET /v1/domain-facts: Domain WHOIS API

> Domain lookup and due diligence (DNS, WHOIS/RDAP, email security): give a domain or hostname, get DNS records (A, AAAA, MX, NS, TXT, CAA), SPF, DMARC, DKIM and MTA-STS email-auth posture, HTTPS/HSTS status, and registrar, creation and expiry dates from registry RDAP.

StablecoinGateways's x402 pay per call plan for the domain WHOIS API costs $3.00 per 1,000 domains. We check each provider's docs for 9 fields. StablecoinGateways's docs list 4: Registrar, Name servers, Statuses, DNSSEC.
We haven't run StablecoinGateways through [our domain WHOIS API benchmark](https://datacircle.dev/best-domain-whois-api.txt) yet.
We rank 495 plans for domain WHOIS APIs by price. Half the plans cost $1.575 or less per 1,000 domains. This plan costs less per 1,000 domains than 28% of the 495 plans.
[Searchwire's $10 pack](https://datacircle.dev/domain-whois-apis/searchwire/10-pack/llms.txt) is the cheapest paid plan per 1,000 domains. Searchwire's domain WHOIS API costs nothing beyond the plan price. [C99.nl's $25 yearly plan](https://datacircle.dev/domain-whois-apis/c99-nl/25-yearly/llms.txt) costs the least for 10,000 domains a month: $2.08.
[WhoisJSON](https://datacircle.dev/domain-whois-apis/whoisjson/120-monthly/llms.txt), [Enterno](https://datacircle.dev/domain-whois-apis/enterno/free-open-api/llms.txt) and [IPAddress.to](https://datacircle.dev/domain-whois-apis/ipaddress-to/free/llms.txt) are the best domain WHOIS API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/domain-whois-apis/stablecoingateways/pay-as-you-go-x402-pay-per-call-get-v1-domain-facts
- [Domain WHOIS API in 2026: the best of 20+ providers compared](https://datacircle.dev/best-domain-whois-api.txt)
- Get it: https://api.stablecoingateways.com/v1/catalog?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- Request: `GET https://api.stablecoingateways.com/v1/domain-facts`
- API key: not needed
- Its API docs: https://api.stablecoingateways.com/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing#/paths/~1v1~1domain-facts
- Sold by: StablecoinGateways (https://stablecoingateways.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing)
- Checked: 2026-11-09

## In the answer

- Completeness: 44%
- Registrar: ✓
- Name servers: ✓
- Statuses: ✓
- DNSSEC: ✓ 10 minutes

## Price

- $ per 1,000 domains: $3.00
- Per: call
- Billing: pay as you go

## Charges

- Also pays for: nothing else

## In their words

- Their pitch: Domain lookup and due diligence (DNS, WHOIS/RDAP, email security): give a domain or hostname, get DNS records (A, AAAA, MX, NS, TXT, CAA), SPF, DMARC, DKIM and MTA-STS email-auth posture, HTTPS/HSTS status, and registrar, creation and expiry dates from registry RDAP.

## Data

- Freshness: 24 hours (A records, AAAA records, MX records, NS records, CAA records, TXT record count, DNSSEC validated answer, SPF, DMARC, DKIM selectors found, DKIM selectors checked, MTA-STS, TLS-RPT: 10 minutes)
- Keep data: no API terms
- Use data: no API terms

## Plan

- Pay: per call

## Rate limit

- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: domain
- Method: GET
- Path: /v1/domain-facts

## About the plan

- Plan: x402 pay per call
- Who can get it: anyone with a wallet paying USDC on Base (or XRP on the XRP Ledger) for each call over x402, no account or API key

## The 37 fields the plan's answer can hold

domain, domain exists, checked at, A records, AAAA records, MX records, NS records, CAA records, TXT record count, DNSSEC validated answer, SPF, DMARC, DKIM selectors found, DKIM selectors checked, MTA-STS, TLS-RPT, HTTPS probed, HTTPS reachable, HTTPS status, HTTPS redirect host, HSTS, RDAP available, registered domain, RDAP source, registrar, registrar IANA ID, registered at, expires at, updated at, statuses, DNSSEC signed, nameservers, RDAP note, sources, notes, provenance, signed receipt

## StablecoinGateways's plans (1)

- [StablecoinGateways, pay as you go, x402 pay per call, GET /v1/domain-facts](https://datacircle.dev/domain-whois-apis/stablecoingateways/pay-as-you-go-x402-pay-per-call-get-v1-domain-facts/llms.txt): $3.00 per 1,000, 44% complete, 24 hours (A records, AAAA records, MX records, NS records, CAA records, TXT record count, DNSSEC validated answer, SPF, DMARC, DKIM selectors found, DKIM selectors checked, MTA-STS, TLS-RPT: 10 minutes)

## StablecoinGateways's calls for this API (2)

- `GET /v1/domain-facts`: [StablecoinGateways, pay as you go, x402 pay per call, GET /v1/domain-facts](https://datacircle.dev/domain-whois-apis/stablecoingateways/pay-as-you-go-x402-pay-per-call-get-v1-domain-facts/llms.txt)
- `GET /v1/whois`: [StablecoinGateways, pay as you go, x402 pay per call, GET /v1/whois](https://datacircle.dev/domain-whois-apis/stablecoingateways/pay-as-you-go-x402-pay-per-call-get-v1-whois/llms.txt)

## StablecoinGateways's APIs (4)

- [StablecoinGateways: company enrichment API pricing, 1 plan](https://datacircle.dev/company-enrichment-apis/stablecoingateways/pay-as-you-go/llms.txt)
- [StablecoinGateways: web scraping API pricing, 1 plan](https://datacircle.dev/web-scraping-apis/stablecoingateways/pay-as-you-go/llms.txt)
- [StablecoinGateways: business verification API pricing, 1 plan, GET /v1/counterparty-check](https://datacircle.dev/business-verification-apis/stablecoingateways/pay-as-you-go-x402-pay-per-call-get-v1-counterparty-check/llms.txt)
- [StablecoinGateways: business verification API pricing, 1 plan, GET /v1/lei](https://datacircle.dev/business-verification-apis/stablecoingateways/pay-as-you-go-x402-pay-per-call-get-v1-lei/llms.txt)
- [StablecoinGateways: business verification API pricing, 1 plan, GET /v1/merchant-check](https://datacircle.dev/business-verification-apis/stablecoingateways/pay-as-you-go-x402-pay-per-call-get-v1-merchant-check/llms.txt)
- [StablecoinGateways: domain WHOIS API pricing, 1 plan, GET /v1/domain-facts](https://datacircle.dev/domain-whois-apis/stablecoingateways/pay-as-you-go-x402-pay-per-call-get-v1-domain-facts/llms.txt)

## StablecoinGateways: domain WHOIS API alternatives

- [WhoisFreaks, $150 pack, 50,000 API Credits, POST /v2.0/bulkwhois/live](https://datacircle.dev/domain-whois-apis/whoisfreaks/150-pack-50000-api-credits-post-v2-0-bulkwhois-live/llms.txt): $3.00 per 1,000, 100% complete, live
- [AveDaris, pay as you go](https://datacircle.dev/domain-whois-apis/avedaris/pay-as-you-go/llms.txt): $3.00 per 1,000, 56% complete, live
- [Macaroon Network, pay as you go](https://datacircle.dev/domain-whois-apis/macaroon-network/pay-as-you-go/llms.txt): $3.00 per 1,000, 56% complete, live
- [NoJunk, pay as you go](https://datacircle.dev/domain-whois-apis/nojunk/pay-as-you-go/llms.txt): $3.00 per 1,000, 33% complete, live

## Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-09.

- https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- https://api.stablecoingateways.com/.well-known/x402?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- https://api.stablecoingateways.com/llms.txt?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- https://api.stablecoingateways.com/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- https://api.stablecoingateways.com/v1/catalog?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- https://stablecoingateways.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing