# fittings.sh, pay as you go: Domain WHOIS API

> Registrar, creation and expiry dates, status codes, nameservers and DNSSEC state for a domain, from the authoritative registry over RDAP.

fittings.sh's Pay per call over x402 plan for the domain WHOIS API costs $3.00 per 1,000 domains. We check each provider's docs for 9 fields. fittings.sh's docs list 6: Registrar, Created on, Expires on, Name servers, Statuses, DNSSEC.
We haven't run fittings.sh through [our domain WHOIS API benchmark](https://datacircle.dev/best-domain-whois-api.txt) yet.
We rank 607 plans for domain WHOIS APIs by price. Half the plans cost $1.667 or less per 1,000 domains. This plan costs less per 1,000 domains than 30% of the 607 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/fittings-sh/pay-as-you-go
- [Domain WHOIS API in 2026: the best of 30+ providers compared](https://datacircle.dev/best-domain-whois-api.txt)
- Get it: https://fittings.sh/catalog/rdap.domain?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- Request: `GET https://fittings.sh/v1/rdap/domain`
- API key: not needed
- Its API docs: https://fittings.sh/catalog/rdap.domain?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- Sold by: fittings.sh (https://fittings.sh?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: ✓
- Expires on: ✓
- Name servers: ✓
- Statuses: ✓
- DNSSEC: ✓

## Price

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

## Charges

- Also pays for: nothing else

## Not found

- $ per 1,000 calls that find nothing: $3.00

## In their words

- Their pitch: Registrar, creation and expiry dates, status codes, nameservers and DNSSEC state for a domain, from the authoritative registry over RDAP.

## 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: /v1/rdap/domain

## About the plan

- Plan: Pay per call over x402
- Who can get it: anyone with a USDC wallet on Base, no account, API key or sign-up

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

found, registered, registrar, creation date, expiry date, status codes, nameservers, DNSSEC state

## fittings.sh's plans (1)

- [fittings.sh, pay as you go](https://datacircle.dev/domain-whois-apis/fittings-sh/pay-as-you-go/llms.txt): $3.00 per 1,000, 67% complete

## fittings.sh's calls for this API (1)

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

## fittings.sh's APIs (6)

- [fittings.sh: business verification API pricing, 1 plan](https://datacircle.dev/business-verification-apis/fittings-sh/pay-as-you-go/llms.txt)
- [fittings.sh: company hierarchy API pricing, 1 plan](https://datacircle.dev/company-hierarchy-apis/fittings-sh/pay-as-you-go/llms.txt)
- [fittings.sh: domain WHOIS API pricing, 1 plan](https://datacircle.dev/domain-whois-apis/fittings-sh/pay-as-you-go/llms.txt)
- [fittings.sh: email verification API pricing, 1 plan](https://datacircle.dev/validate-email-apis/fittings-sh/pay-as-you-go/llms.txt)
- [fittings.sh: web scraping API pricing, 1 plan](https://datacircle.dev/web-scraping-apis/fittings-sh/pay-as-you-go/llms.txt)
- [fittings.sh: company enrichment API pricing, 1 plan, GET /v1/vat/eu-validate](https://datacircle.dev/company-enrichment-apis/fittings-sh/pay-as-you-go-pay-per-call-over-x402-get-v1-vat-eu-validate/llms.txt)
- [fittings.sh: company enrichment API pricing, 1 plan, GET /v1/lei/lookup](https://datacircle.dev/company-enrichment-apis/fittings-sh/pay-as-you-go-pay-per-call-over-x402-get-v1-lei-lookup/llms.txt)

## fittings.sh: domain WHOIS API alternatives

- [DomScan, $10 pack, 10,000 credits, POST /v1/whois/bulk](https://datacircle.dev/domain-whois-apis/domscan/10-pack-10000-credits-post-v1-whois-bulk/llms.txt): $3.00 per 1,000, 100% complete
- [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
- [ipv4.fr, pay as you go](https://datacircle.dev/domain-whois-apis/ipv4-fr/pay-as-you-go/llms.txt): $3.00 per 1,000, 44% complete
- [Ambolt, pay as you go](https://datacircle.dev/domain-whois-apis/ambolt/pay-as-you-go/llms.txt): $3.00 per 1,000, 67% complete

## 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://fittings.sh?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- https://fittings.sh/catalog/rdap.domain?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- https://fittings.sh/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- https://fittings.sh/skill/finance-reference?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- https://fittings.sh/skill/web-lookup?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing