# Maxwell International, pay as you go: Domain WHOIS API

> Domain registration record, looked up live from the registry's own RDAP server: whether it is registered, registrar, status flags, created / updated / expiry dates, nameservers, and which registry answered.

Maxwell International's x402 plan for the domain WHOIS API costs $5.00 per 1,000 domains. We check each provider's docs for 9 fields. Maxwell International's docs list 6: Registrar, Created on, Updated on, Expires on, Name servers, Statuses.
We haven't run Maxwell International through [our domain WHOIS API benchmark](https://datacircle.dev/best-domain-whois-api.txt) yet.
We rank 553 plans for domain WHOIS APIs by price. Half the plans cost $1.665 or less per 1,000 domains. This plan costs less per 1,000 domains than 20% of the 553 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. [UAPI's CNY 4.90 pack](https://datacircle.dev/domain-whois-apis/uapi/cny-4-90-pack/llms.txt) costs the least for 10,000 domains a month: about $0.73.
[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/maxwell-international/pay-as-you-go
- [Domain WHOIS API in 2026: the best of 20+ providers compared](https://datacircle.dev/best-domain-whois-api.txt)
- Get it: https://api.maxwellinternational.ai/.well-known/x402?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- Request: `GET https://api.maxwellinternational.ai/v1/rdap/domain`
- API key: not needed
- Its API docs: https://api.maxwellinternational.ai/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- Sold by: Maxwell International (https://maxwellinternational.ai?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing)
- Checked: 2026-11-10

## In the answer

- Completeness: 67%
- Registrar: ✓
- Created on: ✓
- Updated on: ✓
- Expires on: ✓
- Name servers: ✓
- Statuses: ✓

## Price

- $ per 1,000 domains: $5.00
- Per: call
- Billing: pay as you go

## Charges

- Also pays for: nothing else

## Not found

- $ per 1,000: $5.00

## In their words

- Their pitch: Domain registration record, looked up live from the registry's own RDAP server: whether it is registered, registrar, status flags, created / updated / expiry dates, nameservers, and which registry answered.

## Data

- Freshness: live
- Keep data: 24 hours
- Use data: Every paid answer is licensed, not sold. You may use it for one task for one end user (for example planning one trip or finding one provider). You may not keep it longer than 24 hours, resell or redistribute it, build a competing directory or dataset from it, or use it to train or fine-tune AI models. [...] Our databases are protected by the EU sui generis database right, extracting or re-using a substantial part is prohibited.

## Plan

- Pay: per call

## Rate limit

- Batch: 1

## Speed

- Answer: in the call

## The call

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

## About the plan

- Plan: x402
- Who can get it: anyone paying each call in USDC on Base or Solana over x402, with no account or API key

## The 14 fields the plan's answer can hold

domain, registered, RDAP available, LDH name, unicode name, handle, registrar, status, created date, updated date, expiry date, nameserver, registry, fetched at

## Maxwell International's plans (1)

- [Maxwell International, pay as you go](https://datacircle.dev/domain-whois-apis/maxwell-international/pay-as-you-go/llms.txt): $5.00 per 1,000, 67% complete, live

## Maxwell International's calls for this API (1)

- `GET /v1/rdap/domain`: [Maxwell International, pay as you go](https://datacircle.dev/domain-whois-apis/maxwell-international/pay-as-you-go/llms.txt)

## Maxwell International's APIs (5)

- [Maxwell International: domain WHOIS API pricing, 1 plan](https://datacircle.dev/domain-whois-apis/maxwell-international/pay-as-you-go/llms.txt)
- [Maxwell International: local business search API pricing, 1 plan](https://datacircle.dev/local-business-search-apis/maxwell-international/pay-as-you-go/llms.txt)
- [Maxwell International: company enrichment API pricing, 1 plan, GET /v1/gov/br/companies](https://datacircle.dev/company-enrichment-apis/maxwell-international/pay-as-you-go-x402-get-v1-gov-br-companies/llms.txt)
- [Maxwell International: company enrichment API pricing, 1 plan, GET /v1/gov/ca/companies](https://datacircle.dev/company-enrichment-apis/maxwell-international/pay-as-you-go-x402-get-v1-gov-ca-companies/llms.txt)
- [Maxwell International: company enrichment API pricing, 1 plan, GET /v1/gov/gb/companies](https://datacircle.dev/company-enrichment-apis/maxwell-international/pay-as-you-go-x402-get-v1-gov-gb-companies/llms.txt)
- [Maxwell International: company enrichment API pricing, 1 plan, GET /v1/gov/cz/companies](https://datacircle.dev/company-enrichment-apis/maxwell-international/pay-as-you-go-x402-get-v1-gov-cz-companies/llms.txt)
- [Maxwell International: company enrichment API pricing, 1 plan, GET /v1/gov/fr/companies](https://datacircle.dev/company-enrichment-apis/maxwell-international/pay-as-you-go-x402-get-v1-gov-fr-companies/llms.txt)
- [Maxwell International: company enrichment API pricing, 1 plan, GET /v1/gov/pl/companies](https://datacircle.dev/company-enrichment-apis/maxwell-international/pay-as-you-go-x402-get-v1-gov-pl-companies/llms.txt)
- [Maxwell International: company enrichment API pricing, 1 plan, GET /v1/edgar/company](https://datacircle.dev/company-enrichment-apis/maxwell-international/pay-as-you-go-x402-get-v1-edgar-company/llms.txt)
- [Maxwell International: company enrichment API pricing, 1 plan, GET /v1/gov/sk/companies](https://datacircle.dev/company-enrichment-apis/maxwell-international/pay-as-you-go-x402-get-v1-gov-sk-companies/llms.txt)
- [Maxwell International: company enrichment API pricing, 1 plan, GET /v1/gov/ch/companies](https://datacircle.dev/company-enrichment-apis/maxwell-international/pay-as-you-go-x402-get-v1-gov-ch-companies/llms.txt)
- [Maxwell International: company discovery API pricing, 1 plan, GET /v1/gov/br/companies](https://datacircle.dev/company-discovery-apis/maxwell-international/pay-as-you-go-x402-get-v1-gov-br-companies/llms.txt)
- [Maxwell International: company discovery API pricing, 1 plan, GET /v1/gov/fr/companies](https://datacircle.dev/company-discovery-apis/maxwell-international/pay-as-you-go-x402-get-v1-gov-fr-companies/llms.txt)
- [Maxwell International: company discovery API pricing, 1 plan, GET /v1/gov/pl/companies](https://datacircle.dev/company-discovery-apis/maxwell-international/pay-as-you-go-x402-get-v1-gov-pl-companies/llms.txt)
- [Maxwell International: company discovery API pricing, 1 plan, GET /v1/edgar/search](https://datacircle.dev/company-discovery-apis/maxwell-international/pay-as-you-go-x402-get-v1-edgar-search/llms.txt)
- [Maxwell International: company discovery API pricing, 1 plan, GET /v1/gov/sk/companies](https://datacircle.dev/company-discovery-apis/maxwell-international/pay-as-you-go-x402-get-v1-gov-sk-companies/llms.txt)
- [Maxwell International: business verification API pricing, 1 plan, GET /v1/gov/gb/companies](https://datacircle.dev/business-verification-apis/maxwell-international/pay-as-you-go-x402-get-v1-gov-gb-companies/llms.txt)
- [Maxwell International: business verification API pricing, 1 plan, GET /v1/gov/cz/companies](https://datacircle.dev/business-verification-apis/maxwell-international/pay-as-you-go-x402-get-v1-gov-cz-companies/llms.txt)
- [Maxwell International: business verification API pricing, 1 plan, GET /v1/gov/ch/companies](https://datacircle.dev/business-verification-apis/maxwell-international/pay-as-you-go-x402-get-v1-gov-ch-companies/llms.txt)

## Maxwell International: domain WHOIS API alternatives

- [How.is, pay as you go](https://datacircle.dev/domain-whois-apis/how-is/pay-as-you-go/llms.txt): $5.00 per 1,000, 56% complete, live
- [fetcher.cloud, pay as you go](https://datacircle.dev/domain-whois-apis/fetcher-cloud/pay-as-you-go/llms.txt): $5.00 per 1,000, 44% complete, live
- [Nero Labs, pay as you go](https://datacircle.dev/domain-whois-apis/nero-labs/pay-as-you-go/llms.txt): $5.00 per 1,000, 78% complete, live
- [DomainRef, pay as you go, Pay per call, GET /v1/domain/age](https://datacircle.dev/domain-whois-apis/domainref/pay-as-you-go-pay-per-call-get-v1-domain-age/llms.txt): $5.00 per 1,000, 78% 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 2026-11-10.

- https://api.maxwellinternational.ai/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- https://api.maxwellinternational.ai/.well-known/x402?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- https://api.maxwellinternational.ai/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- https://api.maxwellinternational.ai/terms.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- https://maxwellinternational.ai/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing