# RDAPAPI, $9 monthly: IP company lookup API

> The network an IPv4 or IPv6 address belongs to: the most specific allocation, or the exact block for a CIDR.

RDAPAPI's Starter plan for the IP company lookup API costs $0.30 per 1,000 IP addresses. RDAPAPI's docs list 3 of the 10 fields on our checklist: Owner's name, Network range, Country.
We haven't run RDAPAPI through [our IP company lookup API benchmark](https://datacircle.dev/best-ip-company-lookup-api.txt) yet.
Half of the 398 plans we rank by price cost $0.112 per 1,000 IP addresses or less. This plan costs less per 1,000 IP addresses than 32% of the 398 plans.
[IPHunter's €99.99 monthly plan](https://datacircle.dev/ip-company-lookup-apis/iphunter/99-99-monthly/llms.txt) is the cheapest paid plan per 1,000 IP addresses. IPHunter's €99.99 monthly plan covers up to 11,520,000 IP addresses a day.
[FreeIPAPI's €9.90 monthly plan (/api/bulk/json)](https://datacircle.dev/ip-company-lookup-apis/freeipapi/9-90-monthly-unlimited-post-api-bulk-json/llms.txt) covers any number of IP addresses. FreeIPAPI's €9.90 monthly plan costs less up front than IPHunter's €99.99 monthly plan.
[DNSlytics](https://datacircle.dev/ip-company-lookup-apis/dnslytics/free/llms.txt), [ipwhois.io](https://datacircle.dev/ip-company-lookup-apis/ipwhois-io/free/llms.txt) and [IPBot](https://datacircle.dev/ip-company-lookup-apis/ipbot/free-anonymous-get-v1-ip-ip/llms.txt) are the best IP company lookup API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/ip-company-lookup-apis/rdapapi/9-monthly
- [IP company lookup API: the 15 best providers compared](https://datacircle.dev/best-ip-company-lookup-api.txt)
- Get it: https://rdapapi.io/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- Request: `GET https://rdapapi.io/api/v1/ip/{ip}`
- API key: with the plan, on https://rdapapi.io/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- Its API docs: https://rdapapi.io/docs?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing#tag/ip/GET/ip/{ip}
- Sold by: RDAPAPI (https://rdapapi.io?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing)
- Checked: 2026-11-07

## In the answer

- Completeness: 30%
- Owner's name: ✓
- Network range: ✓
- Country: ✓

## Price

- $ per 1,000 IP addresses: $0.30
- Per: call
- Billing: monthly
- $ a month: $9

## Charges

- Also pays for: from the same budget: Domain Lookup · IP Address Lookup · ASN Lookup · Nameserver Lookup · Entity Lookup

## Overage

- Units cap: hard

## Not found

- $ per 1,000: $0.30

## In their words

- Their pitch: The network an IPv4 or IPv6 address belongs to: the most specific allocation, or the exact block for a CIDR.

## Data

- Freshness: 48 hours
- Keep data: no limit
- Use data: You agree not to: Use the Service for any unlawful purpose. Attempt to circumvent rate limits or usage quotas. Resell API access without prior written consent. Interfere with or disrupt the Service infrastructure. Use the Service to harvest personal data in violation of applicable privacy laws.

## Plan

- Pay: $9
- You get: 30,000 requests a month
- Enough for: 30,000 calls a month

## Rate limit

- Per second: 0.5
- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: ip
- Method: GET
- Path: /ip/{ip}

## About the plan

- Plan: Starter
- Who can get it: anyone with an account

## The 63 fields the plan's answer can hold

network handle, network name, network type, start address, end address, IP version, parent network handle, country, network status, registration date, expiration date, updated date, CIDR, geofeed URL, remarks, WHOIS port 43 server, registrant handle, registrant name, registrant organization, registrant email, registrant phone, registrant address, registrant contact URL, registrant country code, administrative handle, administrative name, administrative organization, administrative email, administrative phone, administrative address, administrative contact URL, administrative country code, technical handle, technical name, technical organization, technical email, technical phone, technical address, technical contact URL, technical country code, abuse handle, abuse name, abuse organization, abuse email, abuse phone, abuse address, abuse contact URL, abuse country code, billing handle, billing name, billing organization, billing email, billing phone, billing address, billing contact URL, billing country code, redaction details, answering server, data protocol (RDAP or WHOIS), RDAP server, raw RDAP URL, served from cache, cache expiry time

## RDAPAPI's plans (6)

- [RDAPAPI, $9 monthly](https://datacircle.dev/ip-company-lookup-apis/rdapapi/9-monthly/llms.txt): $0.30 per 1,000, 30% complete, 48 hours
- [RDAPAPI, $49 monthly](https://datacircle.dev/ip-company-lookup-apis/rdapapi/49-monthly/llms.txt): $0.245 per 1,000, 30% complete, 48 hours
- [RDAPAPI, $199 monthly](https://datacircle.dev/ip-company-lookup-apis/rdapapi/199-monthly/llms.txt): $0.199 per 1,000, 30% complete, 48 hours
- [RDAPAPI, $90 yearly](https://datacircle.dev/ip-company-lookup-apis/rdapapi/90-yearly/llms.txt): $0.25 per 1,000, 30% complete, 48 hours
- [RDAPAPI, $490 yearly](https://datacircle.dev/ip-company-lookup-apis/rdapapi/490-yearly/llms.txt): $0.204 per 1,000, 30% complete, 48 hours
- [RDAPAPI, $1,990 yearly](https://datacircle.dev/ip-company-lookup-apis/rdapapi/1990-yearly/llms.txt): $0.166 per 1,000, 30% complete, 48 hours

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

- `GET /ip/{ip}`: [RDAPAPI, $9 monthly](https://datacircle.dev/ip-company-lookup-apis/rdapapi/9-monthly/llms.txt)

## RDAPAPI's APIs (2)

- [RDAPAPI: domain WHOIS API pricing, 6 plans](https://datacircle.dev/domain-whois-apis/rdapapi/9-monthly/llms.txt)
- [RDAPAPI: IP company lookup API pricing, 6 plans](https://datacircle.dev/ip-company-lookup-apis/rdapapi/9-monthly/llms.txt)

## RDAPAPI: IP company lookup API alternatives

- [ipify, $139 pack, One-time purchase: 1,000,000 Credits, GET /api/v2/country,city](https://datacircle.dev/ip-company-lookup-apis/ipify/139-pack-one-time-purchase-1000000-credits-get-api-v2-country-city/llms.txt): $0.278 per 1,000, 40% complete, 1 day
- [DataAndAPIs, $6.99 monthly, Starter, GET /v1/ip/{address}](https://datacircle.dev/ip-company-lookup-apis/dataandapis/6-99-monthly-starter-get-v1-ip-address/llms.txt): $0.28 per 1,000, 30% complete, 1 day (ASN, AS organization, AS registry country, AS range start, AS range end: 1 hour)
- [Ipregistry, $29 monthly, Starter, GET /{ip}](https://datacircle.dev/ip-company-lookup-apis/ipregistry/29-monthly-starter-get-ip/llms.txt): $0.29 per 1,000, 80% complete, 1 day
- [IP2Location.io, $49 monthly, Starter, GET /](https://datacircle.dev/ip-company-lookup-apis/ip2location-io/49-monthly-starter-get/llms.txt): $0.327 per 1,000, 60% complete, 1 day

## 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://rdapapi.io?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://rdapapi.io/docs?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://rdapapi.io/llms.txt?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://rdapapi.io/openapi.yaml?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://rdapapi.io/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://rdapapi.io/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing