# IPIPAI, free: Domain WHOIS API

> Domain and IP registration info: owner, registrar, status, expiry, ASN history.

IPIPAI's domain WHOIS API on its Free plan. It costs $0.00 per 1,000 domains. IPIPAI's docs list 6 of the 9 fields on our checklist: Registrant, Registrar, Created on, Expires on, Name servers, Statuses.
You get up to 2,592,000 calls a month.
We ran IPIPAI in [our domain WHOIS API benchmark](https://datacircle.dev/best-domain-whois-api.txt). We didn't score any IPIPAI plan.
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/ipipai/free
- [Domain WHOIS API: the 13 best providers compared](https://datacircle.dev/best-domain-whois-api.txt)
- Get it: https://ipipai.com/mcp-docs.html?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- Request: `GET https://ipipai.com/api/whois/{query}`
- API key: not needed
- Its API docs: https://ipipai.com/llms.txt?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- Sold by: IPIPAI (https://ipipai.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing)
- Checked: 2026-11-07

## In the answer

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

## Price

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

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Domain and IP registration info: owner, registrar, status, expiry, ASN history.

## Data

- Keep data: no API terms
- Use data: no API terms

## Plan

- Pay: $0
- Enough for: 2,592,000 calls a month

## Rate limit

- Per second: 1
- Batch: 1

## Speed

- Answer: in the call
- Median: 0.28 s

## The call

- You send: query
- Method: GET
- Path: /api/whois/{query}

## About the plan

- Plan: Free
- Who can get it: anyone, with no registration

## The 7 fields the plan's answer can hold

registrar name, creation date, expiration date, name servers, domain status, registrant, raw WHOIS record

## IPIPAI's plans (2)

- [IPIPAI, free](https://datacircle.dev/domain-whois-apis/ipipai/free/llms.txt): $0.00 per 1,000, 67% complete
- [IPIPAI, contact us](https://datacircle.dev/domain-whois-apis/ipipai/contact-us/llms.txt): 67% complete

## IPIPAI's calls (1)

- `GET /api/whois/{query}`: [IPIPAI, free](https://datacircle.dev/domain-whois-apis/ipipai/free/llms.txt)

## IPIPAI's APIs (1)

- [IPIPAI: domain WHOIS API pricing, 2 plans](https://datacircle.dev/domain-whois-apis/ipipai/free/llms.txt)

## IPIPAI: domain WHOIS API alternatives

- [Robtex, free](https://datacircle.dev/domain-whois-apis/robtex/free/llms.txt): $0.00 per 1,000, 67% complete, live
- [DomScan, free, POST /v1/whois/bulk](https://datacircle.dev/domain-whois-apis/domscan/free-post-v1-whois-bulk/llms.txt): $0.00 per 1,000, 100% complete
- [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
- [Searchwire, free](https://datacircle.dev/domain-whois-apis/searchwire/free/llms.txt): $0.00 per 1,000, 44% complete, 1 day
- [Unstuckapi, free](https://datacircle.dev/domain-whois-apis/unstuckapi/free/llms.txt): $0.00 per 1,000, 78% 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 2026-11-07.

- https://ipipai.com/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- https://ipipai.com/about.html?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- https://ipipai.com/llms.txt?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- https://ipipai.com/mcp-docs.html?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- https://ipipai.com/privacy.html?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- https://ipipai.com/tech-doc.html?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- https://ipipai.com/whois.html?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing