# x402financialdata, pay as you go: Domain WHOIS API

> Domain registration (whois) via RDAP -- registrar, status, creation/last-change/expiry dates, and nameservers in one call.

x402financialdata's x402 pay-per-call plan for the domain WHOIS API costs $5.00 per 1,000 domains. We check each provider's docs for 9 fields. x402financialdata's docs list 6: Registrar, Created on, Updated on, Expires on, Name servers, Statuses.
We haven't run x402financialdata through [our domain WHOIS API benchmark](https://datacircle.dev/best-domain-whois-api.txt) yet.
We rank 610 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 19% of the 610 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.
[thenetworkery](https://datacircle.dev/domain-whois-apis/thenetworkery/free/llms.txt), [FluentEDI](https://datacircle.dev/domain-whois-apis/fluentedi/free/llms.txt) and [DomainDetails](https://datacircle.dev/domain-whois-apis/domaindetails/9-99-monthly-alerts-get-api-rdap/llms.txt) are the best domain WHOIS API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/domain-whois-apis/x402financialdata/pay-as-you-go
- [Domain WHOIS API in 2026: the best of 40+ providers compared](https://datacircle.dev/best-domain-whois-api.txt)
- Get it: https://www.x402financialdata.com/.well-known/x402?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- Request: `GET https://www.x402financialdata.com/whois/{domain}`
- API key: not needed
- Its API docs: https://www.x402financialdata.com/docs?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing#/default/get_whois_whois__domain__get
- Sold by: x402financialdata (https://www.x402financialdata.com?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

## In their words

- Their pitch: Domain registration (whois) via RDAP -- registrar, status, creation/last-change/expiry dates, and nameservers in one call.

## Data

- 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: /whois/{domain}

## About the plan

- Plan: x402 pay-per-call
- Who can get it: anyone

## The 8 fields the plan's answer can hold

domain, registrar, status, created date, updated date, expires date, nameservers, source

## x402financialdata's plans (1)

- [x402financialdata, pay as you go](https://datacircle.dev/domain-whois-apis/x402financialdata/pay-as-you-go/llms.txt): $5.00 per 1,000, 67% complete

## x402financialdata's calls for this API (1)

- `GET /whois/{domain}`: [x402financialdata, pay as you go](https://datacircle.dev/domain-whois-apis/x402financialdata/pay-as-you-go/llms.txt)

## x402financialdata's APIs (4)

- [x402financialdata: company enrichment API pricing, 1 plan](https://datacircle.dev/company-enrichment-apis/x402financialdata/pay-as-you-go/llms.txt)
- [x402financialdata: domain WHOIS API pricing, 1 plan](https://datacircle.dev/domain-whois-apis/x402financialdata/pay-as-you-go/llms.txt)
- [x402financialdata: news API pricing, 1 plan](https://datacircle.dev/news-apis/x402financialdata/pay-as-you-go/llms.txt)
- [x402financialdata: web scraping API pricing, 1 plan](https://datacircle.dev/web-scraping-apis/x402financialdata/pay-as-you-go/llms.txt)

## x402financialdata: 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
- [Agent Extraction API, pay as you go](https://datacircle.dev/domain-whois-apis/agent-extraction-api/pay-as-you-go/llms.txt): $5.00 per 1,000, 67% complete
- [Agent Data Workers, pay as you go](https://datacircle.dev/domain-whois-apis/agent-data-workers/pay-as-you-go/llms.txt): $5.00 per 1,000, 44% complete, 1 hour

## 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.cdp.coinbase.com/platform/v2/x402/discovery/resources?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- https://www.x402financialdata.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- https://www.x402financialdata.com/.well-known/x402?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- https://www.x402financialdata.com/docs?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- https://www.x402financialdata.com/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing