# Ops.Tools, $6.99 monthly: Domain WHOIS API

> Retrieve raw WHOIS registration data for a domain, with optional parsed JSON fields.

Ops.Tools' Starter plan for the domain WHOIS API costs $1.165 per 1,000 domains. We check each provider's docs for 9 fields. Ops.Tools' docs list 2: Registrar, Name servers.
We haven't run Ops.Tools through [our domain WHOIS API benchmark](https://datacircle.dev/best-domain-whois-api.txt) yet.
We rank 587 plans for domain WHOIS APIs by price. Half the plans cost $1.54 or less per 1,000 domains. This plan costs less per 1,000 domains than 73% of the 587 plans. Ops.Tools has no free domain WHOIS API plan. [133 domain WHOIS API plans on our price sheet are free.](https://datacircle.dev/best-domain-whois-api.txt) [WhoisRequest's free plan](https://datacircle.dev/domain-whois-apis/whoisrequest/free-get-api-v1-lookup-whois-domain-name/llms.txt) scores highest of the free plans in our benchmark, at 96.9 out of 100.
[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.
[WhoisRequest](https://datacircle.dev/domain-whois-apis/whoisrequest/free-get-api-v1-lookup-whois-domain-name/llms.txt), [thenetworkery](https://datacircle.dev/domain-whois-apis/thenetworkery/free/llms.txt) and [FluentEDI](https://datacircle.dev/domain-whois-apis/fluentedi/free/llms.txt) are the best domain WHOIS API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/domain-whois-apis/ops-tools/6-99-monthly
- [Domain WHOIS API in 2026: the best of 50+ providers compared](https://datacircle.dev/best-domain-whois-api.txt)
- Get it: https://ops.tools/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- Request: `GET https://api.ops.tools/v1-whois-data`
- API key: with the plan, on https://ops.tools/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- Its API docs: https://ops.tools/open-api?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- Sold by: Ops.Tools (https://ops.tools?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing)
- Checked: 2026-11-12

## In the answer

- Completeness: 22%
- Registrar: ✓
- Name servers: ✓

## Price

- $ per 1,000 domains: $1.165
- Per: call
- Billing: monthly
- $ a month: $6.99

## Charges

- Also pays for: from the same budget: Look up IP details · Look up DNS records · Check an SSL certificate · Analyze an HTTP endpoint · Scan ports

## In their words

- Their pitch: Retrieve raw WHOIS registration data for a domain, with optional parsed JSON fields.

## Data

- Freshness: stored
- Keep data: no limit
- Use data: You may not use Ops.Tools to: Violate law, privacy rights, security policies, intellectual property rights, or third-party terms. Scan, probe, monitor, or test systems unless you are authorized to do so. Disrupt, overload, scrape, reverse engineer, or bypass limits on the website, APIs, or infrastructure. Transmit malware, phishing content, spam, credential material, secrets, or regulated data not needed for the service. Resell the service or API results as a competing bulk data product without written permission.

## Plan

- Pay: $6.99
- You get: 6,000 credits a month
- Enough for: 6,000 calls a month
- Expires: each billing cycle

## Rate limit

- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: domain. Optional: noCache, parseWhoisToJson, provider, cacheTimeSeconds
- Method: GET
- Path: /v1-whois-data

## About the plan

- Plan: Starter
- Who can get it: anyone

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

domain, WHOIS text, parsed WHOIS, registrar, registration dates, nameservers, performance timings

## Ops.Tools' plans (5)

- [Ops.Tools, $6.99 monthly](https://datacircle.dev/domain-whois-apis/ops-tools/6-99-monthly/llms.txt): $1.165 per 1,000, 22% complete, stored
- [Ops.Tools, $29.99 monthly](https://datacircle.dev/domain-whois-apis/ops-tools/29-99-monthly/llms.txt): $0.923 per 1,000, 22% complete, stored
- [Ops.Tools, $99.99 monthly](https://datacircle.dev/domain-whois-apis/ops-tools/99-99-monthly/llms.txt): $0.69 per 1,000, 22% complete, stored
- [Ops.Tools, $199.99 monthly](https://datacircle.dev/domain-whois-apis/ops-tools/199-99-monthly/llms.txt): $0.69 per 1,000, 22% complete, stored
- [Ops.Tools, contact us](https://datacircle.dev/domain-whois-apis/ops-tools/contact-us/llms.txt): 22% complete, stored

## Ops.Tools' calls for this API (1)

- `GET /v1-whois-data`: [Ops.Tools, $6.99 monthly](https://datacircle.dev/domain-whois-apis/ops-tools/6-99-monthly/llms.txt)

## Ops.Tools' APIs (3)

- [Ops.Tools Domain WHOIS API pricing, 5 plans](https://datacircle.dev/domain-whois-apis/ops-tools/6-99-monthly/llms.txt)
- [Ops.Tools IP company lookup API pricing, 5 plans](https://datacircle.dev/ip-company-lookup-apis/ops-tools/6-99-monthly/llms.txt)
- [Ops.Tools IP geolocation API pricing, 5 plans](https://datacircle.dev/ip-geolocation-apis/ops-tools/6-99-monthly/llms.txt)

## Ops.Tools: domain WHOIS API alternatives

[Ops.Tools alternatives: other domain WHOIS API providers by price](https://datacircle.dev/ops-tools-alternatives.txt)

We list other providers' plans closest to this plan in price per 1,000 domains. Each plan in the list gives stored data.

- [TLDix, free](https://datacircle.dev/domain-whois-apis/tldix/free/llms.txt): $0.00 per 1,000, 56% complete, stored
- [NetAPI, $49 monthly, Basic, GET /api-json/](https://datacircle.dev/domain-whois-apis/netapi/49-monthly-basic-get-api-json/llms.txt): $0.817 per 1,000, 44% complete, stored
- [who.is, $199 monthly, Scale API Access, GET /v1/rdap/{domain}, Normalized RDAP record](https://datacircle.dev/domain-whois-apis/who-is/199-monthly-scale-api-access-get-v1-rdap-domain-normalized-rdap-record/llms.txt): $1.327 per 1,000, 44% complete, stored
- [DNSai, $499 monthly, Enterprise, GET /api/v1/domains/{id}/whois/](https://datacircle.dev/domain-whois-apis/dnsai/499-monthly-enterprise-get-api-v1-domains-id-whois/llms.txt): $1.663 per 1,000, 89% complete, stored

## Sources

From each provider's own pricing page and docs, and from what providers tell us. We read this row from these pages on 2026-11-12.

- https://ops.tools?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- https://ops.tools/guides/mcp-server?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- https://ops.tools/json/open-api.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- https://ops.tools/open-api/reference?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- https://ops.tools/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing
- https://ops.tools/terms-of-service?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=domain-whois-api-pricing