# Agent402 Tools, pay as you go: IP company lookup API

> Look up the Autonomous System (ASN), prefix, country, registry, and allocation date for an IPv4 address - or for a hostname (which is resolved first).

Agent402 Tools's x402 pay per call plan for the IP company lookup API costs $1.00 per 1,000 IP addresses. We check each provider's docs for 10 fields. Agent402 Tools's docs list 4: Owner's name, ASN, Network range, Country.
We haven't run Agent402 Tools through [our IP company lookup API benchmark](https://datacircle.dev/best-ip-company-lookup-api.txt) yet.
We rank 468 plans for IP company lookup APIs by price. Half the plans cost $0.167 or less per 1,000 IP addresses. This plan costs less per 1,000 IP addresses than 31% of the 468 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. [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/agent402-tools/pay-as-you-go
- [IP company lookup API: the best of 40+ providers compared](https://datacircle.dev/best-ip-company-lookup-api.txt)
- Get it: https://agent402.tools/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- Request: `POST https://agent402.tools/api/asn-info`
- API key: not needed
- Its API docs: https://agent402.tools/tools/asn-info?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- Sold by: Agent402 Tools (https://agent402.tools?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing)
- Checked: 2026-11-09

## In the answer

- Completeness: 40%
- Owner's name: ✓
- ASN: ✓
- Network range: ✓
- Country: ✓

## Price

- $ per 1,000 IP addresses: $1.00
- Per: call
- Billing: pay as you go

## Charges

- Also pays for: nothing else

## Not found

- $ per 1,000: $0.00

## In their words

- Their pitch: Look up the Autonomous System (ASN), prefix, country, registry, and allocation date for an IPv4 address - or for a hostname (which is resolved first).

## Data

- Keep data: no limit
- Use data: Don't use the service to break the law, infringe others' rights, or attack the service or third parties (e.g. using the URL-fetching tools against targets you don't control). [...] Don't attempt to bypass rate limits, payment, or the proof-of-work gate, or to disrupt availability for others. [...] Don't use the service to create malware or exploits for unauthorized use, to defraud, phish, spam, or deceive, or to process other people's personal data unlawfully. You are responsible for the inputs you send and how you use the outputs.

## Plan

- Pay: per call

## Rate limit

- Batch: 1

## Speed

- Answer: in the call

## The call

- You send: one of ip or host
- Method: POST
- Path: /api/asn-info

## About the plan

- Plan: x402 pay per call
- Who can get it: anyone at least 18 (or the age of majority where they live, if higher), able to form a binding contract, not barred from receiving services under U.S. or other applicable law, not in an embargoed jurisdiction and not on a U.S. government sanctions list, with no account or API key, paying each call in USDC (or USDG on Robinhood Chain) over x402 or MPP

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

IP address, ASN, ASN organization, BGP prefix, country code, registry, allocation date, queried at

## Agent402 Tools's plans (1)

- [Agent402 Tools, pay as you go](https://datacircle.dev/ip-company-lookup-apis/agent402-tools/pay-as-you-go/llms.txt): $1.00 per 1,000, 40% complete

## Agent402 Tools's calls for this API (1)

- `POST /api/asn-info`: [Agent402 Tools, pay as you go](https://datacircle.dev/ip-company-lookup-apis/agent402-tools/pay-as-you-go/llms.txt)

## Agent402 Tools's APIs (14)

- [Agent402 Tools: company enrichment API pricing, 1 plan](https://datacircle.dev/company-enrichment-apis/agent402-tools/pay-as-you-go/llms.txt)
- [Agent402 Tools: tech stack API pricing, 1 plan](https://datacircle.dev/company-technology-apis/agent402-tools/pay-as-you-go/llms.txt)
- [Agent402 Tools: domain WHOIS API pricing, 1 plan](https://datacircle.dev/domain-whois-apis/agent402-tools/pay-as-you-go/llms.txt)
- [Agent402 Tools: email verification API pricing, 1 plan](https://datacircle.dev/validate-email-apis/agent402-tools/pay-as-you-go/llms.txt)
- [Agent402 Tools: image search API pricing, 1 plan](https://datacircle.dev/image-search-apis/agent402-tools/pay-as-you-go/llms.txt)
- [Agent402 Tools: IP company lookup API pricing, 1 plan](https://datacircle.dev/ip-company-lookup-apis/agent402-tools/pay-as-you-go/llms.txt)
- [Agent402 Tools: news API pricing, 1 plan](https://datacircle.dev/news-apis/agent402-tools/pay-as-you-go/llms.txt)
- [Agent402 Tools: search autocomplete API pricing, 1 plan](https://datacircle.dev/search-autocomplete-apis/agent402-tools/pay-as-you-go/llms.txt)
- [Agent402 Tools: video search API pricing, 1 plan](https://datacircle.dev/video-search-apis/agent402-tools/pay-as-you-go/llms.txt)
- [Agent402 Tools: GitHub repository API pricing, 1 plan](https://datacircle.dev/github-repository-apis/agent402-tools/pay-as-you-go/llms.txt)
- [Agent402 Tools: X post API pricing, 1 plan](https://datacircle.dev/x-post-apis/agent402-tools/pay-as-you-go/llms.txt)
- [Agent402 Tools: web scraping API pricing, 1 plan, POST /api/render](https://datacircle.dev/web-scraping-apis/agent402-tools/pay-as-you-go-x402-pay-per-call-post-api-render/llms.txt)
- [Agent402 Tools: web scraping API pricing, 1 plan, POST /api/extract](https://datacircle.dev/web-scraping-apis/agent402-tools/pay-as-you-go-x402-pay-per-call-post-api-extract/llms.txt)
- [Agent402 Tools: web search API pricing, 1 plan, GET /api/search](https://datacircle.dev/web-search-apis/agent402-tools/pay-as-you-go-x402-pay-per-call-get-api-search/llms.txt)
- [Agent402 Tools: web search API pricing, 1 plan, GET /api/search-lite](https://datacircle.dev/web-search-apis/agent402-tools/pay-as-you-go-x402-pay-per-call-get-api-search-lite/llms.txt)
- [Agent402 Tools: X profile API pricing, 1 plan, POST /api/x-users-lookup](https://datacircle.dev/x-profile-apis/agent402-tools/pay-as-you-go-x402-pay-per-call-post-api-x-users-lookup/llms.txt)
- [Agent402 Tools: X profile API pricing, 1 plan, POST /api/x-user](https://datacircle.dev/x-profile-apis/agent402-tools/pay-as-you-go-x402-pay-per-call-post-api-x-user/llms.txt)

## Agent402 Tools: IP company lookup API alternatives

- [ip2geo.dev, $10 monthly, Starter, POST /convert](https://datacircle.dev/ip-company-lookup-apis/ip2geo-dev/10-monthly-starter-post-convert/llms.txt): $1.00 per 1,000, 40% complete
- [WhoisFreaks, $1,000 monthly, Monthly Subscription, 1,000,000 API Credits, POST /v1.0/geolocation](https://datacircle.dev/ip-company-lookup-apis/whoisfreaks/1000-monthly-monthly-subscription-1000000-api-credits-post-v1-0-geolocation/llms.txt): $1.00 per 1,000, 60% complete
- [DomScan, $10 pack](https://datacircle.dev/ip-company-lookup-apis/domscan/10-pack/llms.txt): $1.00 per 1,000, 70% complete, stored
- [AI Rook, pay as you go](https://datacircle.dev/ip-company-lookup-apis/ai-rook/pay-as-you-go/llms.txt): $1.00 per 1,000, 20% 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 2026-11-09.

- https://agent402.tools?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://agent402.tools/api/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://agent402.tools/llms.txt?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://agent402.tools/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://agent402.tools/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://agent402.tools/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing
- https://agent402.tools/tools/asn-info?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-company-lookup-api-pricing