# 2s.io, free trial, GET /api/net/ip-resolve: IP company lookup API

> Resolve a single IPv4/IPv6 address to its full network identity in one call: the Autonomous System number, the authoritative AS holder/operator (RIPEstat), the ISP + organization, whether the AS is currently announced, the RIR/IANA allocation block the AS sits in, and country/region/city + coordinates + timezone.

2s.io's Free trial plan for the IP company lookup API costs $0.00 per 1,000 IP addresses. We check each provider's docs for 10 fields. 2s.io's docs list 2: Owner's name, ASN.
2s.io limits how many calls you get but gives no number.
We haven't run 2s.io through [our IP company lookup API benchmark](https://datacircle.dev/best-ip-company-lookup-api.txt) yet.
This plan is free. We rank 468 plans for IP company lookup APIs by price. Half the plans cost $0.167 or less per 1,000 IP addresses. [See the best free IP company lookup API plan.](https://datacircle.dev/best-ip-company-lookup-api.txt)
[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. [ipapi.is's top-up plan](https://datacircle.dev/ip-company-lookup-apis/ipapi-is/top-up-from-1-one-time-credits-post/llms.txt) costs the least for 10,000 IP addresses a month: $1.00.
[Api.co.id's Rp99,000 (about $5) monthly plan](https://datacircle.dev/ip-company-lookup-apis/api-co-id/rp99000-monthly/llms.txt) covers any number of IP addresses. Api.co.id's Rp99,000 (about $5) monthly plan costs less up front than IPHunter's €99.99 monthly plan.
[IPKit](https://datacircle.dev/ip-company-lookup-apis/ipkit/free/llms.txt), [MxToolbox](https://datacircle.dev/ip-company-lookup-apis/mxtoolbox/free-get-api-v1-lookup-asn/llms.txt) and [Enterno](https://datacircle.dev/ip-company-lookup-apis/enterno/free-open-api-get-api-open-ip/llms.txt) are the best IP company lookup API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/ip-company-lookup-apis/2s-io/free-trial-get-api-net-ip-resolve
- [IP company lookup API: the best of 40+ providers compared](https://datacircle.dev/best-ip-company-lookup-api.txt)
- Get it: https://2s.io/catalog.txt?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- Request: `GET https://2s.io/api/net/ip-resolve`
- API key: not needed
- Its API docs: https://2s.io/net/ip-resolve?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- Sold by: 2s.io (https://2s.io?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing)
- Checked: 2026-11-09

## In the answer

- Completeness: 20%
- Owner's name: ✓
- ASN: ✓

## Price

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

## Charges

- Also pays for: nothing else

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Resolve a single IPv4/IPv6 address to its full network identity in one call: the Autonomous System number, the authoritative AS holder/operator (RIPEstat), the ISP + organization, whether the AS is currently announced, the RIR/IANA allocation block the AS sits in, and country/region/city + coordinates + timezone.

## Data

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

## Plan

- Pay: $0

## Rate limit

- Per second: 0.00028
- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: ip
- Method: GET
- Path: /api/net/ip-resolve

## About the plan

- Plan: Free trial
- Who can get it: anyone, with no wallet or payment, for one call per endpoint per hour (a request with ?trial=1 or the X-2s-Trial: 1 header)

## The 9 fields the plan's answer can hold

IP address, ASN, ASN holder, organization, ISP, RIR resource, RIR name, RIR description, announced

## 2s.io's plans (2)

- [2s.io, free trial, GET /api/net/ip-resolve](https://datacircle.dev/ip-company-lookup-apis/2s-io/free-trial-get-api-net-ip-resolve/llms.txt): $0.00 per 1,000, 20% complete
- [2s.io, pay as you go, x402 pay per call, GET /api/net/ip-resolve](https://datacircle.dev/ip-company-lookup-apis/2s-io/pay-as-you-go-x402-pay-per-call-get-api-net-ip-resolve/llms.txt): $9.00 per 1,000, 20% complete

## 2s.io's calls for this API (3)

- `GET /api/geo/ip`: [2s.io, free trial, GET /api/geo/ip](https://datacircle.dev/ip-company-lookup-apis/2s-io/free-trial-get-api-geo-ip/llms.txt)
- `POST /api/ipinfo/bulk`: [2s.io, free trial, POST /api/ipinfo/bulk](https://datacircle.dev/ip-company-lookup-apis/2s-io/free-trial-post-api-ipinfo-bulk/llms.txt)
- `GET /api/net/ip-resolve`: [2s.io, free trial, GET /api/net/ip-resolve](https://datacircle.dev/ip-company-lookup-apis/2s-io/free-trial-get-api-net-ip-resolve/llms.txt)

## 2s.io's APIs (15)

- [2s.io: company hierarchy API pricing, 2 plans](https://datacircle.dev/company-hierarchy-apis/2s-io/free/llms.txt)
- [2s.io: domain WHOIS API pricing, 2 plans](https://datacircle.dev/domain-whois-apis/2s-io/free/llms.txt)
- [2s.io: email verification API pricing, 2 plans](https://datacircle.dev/validate-email-apis/2s-io/free/llms.txt)
- [2s.io: local business search API pricing, 2 plans](https://datacircle.dev/local-business-search-apis/2s-io/free/llms.txt)
- [2s.io: news API pricing, 2 plans](https://datacircle.dev/news-apis/2s-io/free/llms.txt)
- [2s.io: GitHub profile API pricing, 2 plans](https://datacircle.dev/github-profile-apis/2s-io/free/llms.txt)
- [2s.io: GitHub repository API pricing, 2 plans](https://datacircle.dev/github-repository-apis/2s-io/free/llms.txt)
- [2s.io: GitHub user repository API pricing, 2 plans](https://datacircle.dev/github-user-repository-apis/2s-io/free/llms.txt)
- [2s.io: Hacker News search API pricing, 2 plans](https://datacircle.dev/hacker-news-search-apis/2s-io/free/llms.txt)
- [2s.io: company enrichment API pricing, 2 plans, GET /api/business/br-cnpj](https://datacircle.dev/company-enrichment-apis/2s-io/free-trial-get-api-business-br-cnpj/llms.txt)
- [2s.io: company enrichment API pricing, 2 plans, GET /api/business/lei](https://datacircle.dev/company-enrichment-apis/2s-io/free-trial-get-api-business-lei/llms.txt)
- [2s.io: company enrichment API pricing, 2 plans, GET /api/business/pl-krs](https://datacircle.dev/company-enrichment-apis/2s-io/free-trial-get-api-business-pl-krs/llms.txt)
- [2s.io: company enrichment API pricing, 2 plans, GET /api/tax/vat](https://datacircle.dev/company-enrichment-apis/2s-io/free-trial-get-api-tax-vat/llms.txt)
- [2s.io: business verification API pricing, 2 plans, GET /api/business/entity-profile](https://datacircle.dev/business-verification-apis/2s-io/free-trial-get-api-business-entity-profile/llms.txt)
- [2s.io: business verification API pricing, 2 plans, GET /api/business/fi-companies](https://datacircle.dev/business-verification-apis/2s-io/free-trial-get-api-business-fi-companies/llms.txt)
- [2s.io: business verification API pricing, 2 plans, GET /api/business/fr-companies](https://datacircle.dev/business-verification-apis/2s-io/free-trial-get-api-business-fr-companies/llms.txt)
- [2s.io: business verification API pricing, 2 plans, GET /api/business/no-companies](https://datacircle.dev/business-verification-apis/2s-io/free-trial-get-api-business-no-companies/llms.txt)
- [2s.io: business verification API pricing, 2 plans, GET /api/business/sos-search](https://datacircle.dev/business-verification-apis/2s-io/free-trial-get-api-business-sos-search/llms.txt)
- [2s.io: business verification API pricing, 2 plans, GET /api/business/uk-companies](https://datacircle.dev/business-verification-apis/2s-io/free-trial-get-api-business-uk-companies/llms.txt)
- [2s.io: IP company lookup API pricing, 2 plans, GET /api/net/ip-resolve](https://datacircle.dev/ip-company-lookup-apis/2s-io/free-trial-get-api-net-ip-resolve/llms.txt)
- [2s.io: job postings API pricing, 2 plans, GET /api/gov/usajobs](https://datacircle.dev/job-posting-apis/2s-io/free-trial-get-api-gov-usajobs/llms.txt)
- [2s.io: job postings API pricing, 2 plans, GET /api/job/federal-search](https://datacircle.dev/job-posting-apis/2s-io/free-trial-get-api-job-federal-search/llms.txt)
- [2s.io: web search API pricing, 2 plans, GET /api/search/ai](https://datacircle.dev/web-search-apis/2s-io/free-trial-get-api-search-ai/llms.txt)
- [2s.io: web search API pricing, 2 plans, GET /api/search/web](https://datacircle.dev/web-search-apis/2s-io/free-trial-get-api-search-web/llms.txt)
- [2s.io: web scraping API pricing, 2 plans, POST /api/search/extract](https://datacircle.dev/web-scraping-apis/2s-io/free-trial-post-api-search-extract/llms.txt)
- [2s.io: web scraping API pricing, 2 plans, GET /api/url/clean](https://datacircle.dev/web-scraping-apis/2s-io/free-trial-get-api-url-clean/llms.txt)
- [2s.io: web scraping API pricing, 2 plans, GET /api/url/render](https://datacircle.dev/web-scraping-apis/2s-io/free-trial-get-api-url-render/llms.txt)

## 2s.io: IP company lookup API alternatives

- [Criminal IP, $1,069 yearly, Starter, GET /v1/asset/ip/report](https://datacircle.dev/ip-company-lookup-apis/criminal-ip/1069-yearly-starter-get-v1-asset-ip-report/llms.txt): $8.908 per 1,000, 50% complete
- [Pulsedive, $900 monthly](https://datacircle.dev/ip-company-lookup-apis/pulsedive/900-monthly/llms.txt): $9.00 per 1,000, 10% complete
- [AgentPay Lookup, top-up from $5](https://datacircle.dev/ip-company-lookup-apis/agentpay-lookup/top-up-from-5/llms.txt): $9.091 per 1,000, 30% complete
- [Agent Data Tools, $20 pack, 22,000 credits, GET /pack/ip-intelligence](https://datacircle.dev/ip-company-lookup-apis/agent-data-tools/20-pack-22000-credits-get-pack-ip-intelligence/llms.txt): $9.091 per 1,000, 20% 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 2026-11-09.

- https://2s.io?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://2s.io/?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://2s.io/.well-known/x402?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://2s.io/catalog.txt?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://2s.io/llms.txt?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://2s.io/net/ip-resolve?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://2s.io/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing