# Searchwire, free: Domain WHOIS API

> Whether domains are registered, with registrar and dates, from the registries (RDAP and WHOIS).

Searchwire's domain WHOIS API on its Without a key plan. It costs $0.00 per 1,000 domains. Searchwire's docs list 4 of the 9 fields on our checklist: Registrar, Created on, Expires on, Statuses.
You get up to 600 calls a month.
In [our domain WHOIS API benchmark](https://datacircle.dev/best-domain-whois-api.txt), the best plan from Searchwire scores 71.5 out of 100. Searchwire ranks 4th of 13 providers.
This plan is free. We rank 316 plans for domain WHOIS APIs by price. Half the plans cost $1.495 per 1,000 domains or less. [See the best free domain WHOIS API plan.](https://datacircle.dev/best-domain-whois-api.txt)
[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.
[Robtex](https://datacircle.dev/domain-whois-apis/robtex/free/llms.txt), [DomScan](https://datacircle.dev/domain-whois-apis/domscan/6-monthly-starter-post-v1-whois-bulk/llms.txt) and [WhoisFreaks](https://datacircle.dev/domain-whois-apis/whoisfreaks/200-monthly-monthly-subscription-150000-api-credits-post-v2-0-bulkwhois-live/llms.txt) are the best domain WHOIS API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/domain-whois-apis/searchwire/free
- [Domain WHOIS API: the 13 best providers compared](https://datacircle.dev/best-domain-whois-api.txt)
- Get it: https://searchwire.dev?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- Request: `POST https://searchwire.dev/v1/domains/check`
- API key: not needed
- Its API docs: https://searchwire.dev/llms.txt?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- Sold by: Searchwire (https://searchwire.dev?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing)
- Checked: 2026-11-07

## In the answer

- Completeness: 44%
- Registrar: ✓
- Created on: ✓
- Expires on: ✓
- Statuses: ✓

## Price

- $ per 1,000 domains: $0.00
- Per: call
- Billing: free

## Charges

- Also pays for: from the same budget: /v1/keywords/volume call · /v1/serp call · /v1/apps/keywords call · /v1/apps/search call · /v1/apps/competitors call · /v1/apps/keywords/volume call · /v1/names/check call

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Whether domains are registered, with registrar and dates, from the registries (RDAP and WHOIS).

## Data

- Freshness: 1 day
- Keep data: no limit
- Use data: Use the data for research, analysis and building your own products. Do not resell or redistribute the raw API output as a competing data feed. Do not use the service to build a general web search engine or otherwise compete with or harm search engine or app-store providers. Do not use it for anything unlawful, to collect personal data about individuals, or to attack or overload any system. Do not share keys publicly.

## Plan

- Pay: $0
- Enough for: 600 calls a month

## Rate limit

- Per day: 20
- Batch: 50

## Speed

- Answer: in the call
- Median: 0.47 s

## The call

- You send: domains
- Method: POST
- Path: /v1/domains/check

## About the plan

- Plan: Without a key
- Who can get it: anyone, without a key

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

registered, registrar, registration date, expiration date, domain status, fetched at, cached, data origin

## Searchwire's plans (6)

- [Searchwire, free](https://datacircle.dev/domain-whois-apis/searchwire/free/llms.txt): $0.00 per 1,000, 44% complete, 1 day
- [Searchwire, $10 pack](https://datacircle.dev/domain-whois-apis/searchwire/10-pack/llms.txt): 44% complete, 1 day
- [Searchwire, $25 pack](https://datacircle.dev/domain-whois-apis/searchwire/25-pack/llms.txt): 44% complete, 1 day
- [Searchwire, $50 pack](https://datacircle.dev/domain-whois-apis/searchwire/50-pack/llms.txt): 44% complete, 1 day
- [Searchwire, $100 pack](https://datacircle.dev/domain-whois-apis/searchwire/100-pack/llms.txt): 44% complete, 1 day
- [Searchwire, $250 pack](https://datacircle.dev/domain-whois-apis/searchwire/250-pack/llms.txt): 44% complete, 1 day

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

- `POST /v1/domains/check`: [Searchwire, free](https://datacircle.dev/domain-whois-apis/searchwire/free/llms.txt)

## Searchwire's APIs (5)

- [Searchwire: App Store search API pricing, 6 plans](https://datacircle.dev/app-store-search-apis/searchwire/free/llms.txt)
- [Searchwire: SERP API pricing, 6 plans](https://datacircle.dev/serp-apis/searchwire/free/llms.txt)
- [Searchwire: Google Play search API pricing, 6 plans](https://datacircle.dev/google-play-search-apis/searchwire/free/llms.txt)
- [Searchwire: domain WHOIS API pricing, 6 plans](https://datacircle.dev/domain-whois-apis/searchwire/free/llms.txt)
- [Searchwire: keyword research API pricing, 6 plans, POST /v1/apps/keywords/volume](https://datacircle.dev/keyword-research-apis/searchwire/free-without-a-key-post-v1-apps-keywords-volume/llms.txt)
- [Searchwire: keyword research API pricing, 6 plans, POST /v1/keywords/volume](https://datacircle.dev/keyword-research-apis/searchwire/free-without-a-key-post-v1-keywords-volume/llms.txt)

## Searchwire: domain WHOIS API alternatives

- [Robtex, free](https://datacircle.dev/domain-whois-apis/robtex/free/llms.txt): $0.00 per 1,000, 67% complete, live
- [WhoisFreaks, free, POST /v2.0/bulkwhois/live](https://datacircle.dev/domain-whois-apis/whoisfreaks/free-post-v2-0-bulkwhois-live/llms.txt): $0.00 per 1,000, 100% complete, live
- [fetcher.cloud, free](https://datacircle.dev/domain-whois-apis/fetcher-cloud/free/llms.txt): $0.00 per 1,000, 44% complete, live
- [ViewDNS.info, free](https://datacircle.dev/domain-whois-apis/viewdns-info/free/llms.txt): $0.00 per 1,000, 89% 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 2026-11-07.

- https://searchwire.dev?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- https://searchwire.dev/llms.txt?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- https://searchwire.dev/privacy?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- https://searchwire.dev/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing