# Watch-IP, free, POST /v1/lookup: IP geolocation API

> Send a list of IP addresses to one endpoint and receive a matching list of location results. Watch-IP's bulk IP lookup API accepts up to 100 IPv4 and IPv6 addresses per request for backend enrichment workflows.

Watch-IP's Free plan for the IP geolocation API costs $0.00 per 1,000 IP addresses. We check each provider's docs for 8 fields. Watch-IP's docs list 7: Country, Region and city, Postal code, Coordinates, Time zone, ASN, Owner's name.
We haven't run Watch-IP through [our IP geolocation API benchmark](https://datacircle.dev/best-ip-geolocation-api.txt) yet.
This plan is free. We rank 429 plans for IP geolocation APIs by price. Half the plans cost $0.214 or less per 1,000 IP addresses. [149 IP geolocation API plans on our price sheet are free.](https://datacircle.dev/best-ip-geolocation-api.txt) [Apixies' free plan](https://datacircle.dev/ip-geolocation-apis/apixies/free-sandbox-no-account/llms.txt) scores highest of the free plans in our benchmark, at 89.6 out of 100.
[IPWho.org's $99 monthly plan](https://datacircle.dev/ip-geolocation-apis/ipwho-org/99-monthly-enterprise-get-ip-ip/llms.txt) is the cheapest paid plan per 1,000 IP addresses, with no charge per call. You get as many IP addresses as IPWho.org's rate limit allows. [Api.co.id's Rp19,000 monthly plan](https://datacircle.dev/ip-geolocation-apis/api-co-id/rp19000-monthly/llms.txt) costs the least for 10,000 IP addresses a month: about $1.05.
[Api.co.id's Rp99,000 (about $5) monthly plan](https://datacircle.dev/ip-geolocation-apis/api-co-id/rp99000-monthly/llms.txt) covers any number of IP addresses, and costs less up front than IPWho.org's $99 monthly plan.
[Apixies](https://datacircle.dev/ip-geolocation-apis/apixies/free-sandbox-no-account/llms.txt), [getmyip.pro](https://datacircle.dev/ip-geolocation-apis/getmyip-pro/free-getmyip-get-v1-ip/llms.txt) and [IPFlare](https://datacircle.dev/ip-geolocation-apis/ipflare/16-80-monthly-unlimited-get-ip/llms.txt) are the best IP geolocation API providers in the Datacircle benchmark.

- This page: https://datacircle.dev/ip-geolocation-apis/watch-ip/free-post-v1-lookup
- [IP geolocation API in 2026: the best of 20+ compared](https://datacircle.dev/best-ip-geolocation-api.txt)
- Get it: https://watch-ip.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-geolocation-api-pricing
- Request: `POST https://api.watch-ip.com/v1/lookup`
- API key: with the plan, on https://watch-ip.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-geolocation-api-pricing
- Its API docs: https://watch-ip.com/docs/reference/bulk-lookup?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-geolocation-api-pricing
- Sold by: Watch-IP (https://watch-ip.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-geolocation-api-pricing)
- Checked: 2026-11-11

## In the answer

- Completeness: 88%
- Country: ✓
- Region and city: ✓
- Postal code: ✓
- Coordinates: ✓
- Time zone: ✓
- ASN: ✓
- Owner's name: ✓

## Price

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

## Charges

- Also pays for: Look up the requesting visitor's geolocation · Check an email address · Check a batch of email addresses · Submit an email list for asynchronous checking · Score a signup from its email address and IP · Check an IP against a user's last-known location for impossible travel · from the same budget: Look up geolocation for an arbitrary IP address

## Overage

- Units cap: hard

## Not found

- $ per 1,000 calls that find nothing: $0.00

## In their words

- Their pitch: Send a list of IP addresses to one endpoint and receive a matching list of location results. Watch-IP's bulk IP lookup API accepts up to 100 IPv4 and IPv6 addresses per request for backend enrichment workflows.

## Data

- Keep data: no limit
- Use data: You may use the Service only for lawful purposes and in compliance with these Terms, our Privacy Policy, and (where applicable) our Data Processing Addendum. Without limiting the foregoing, you agree not to: [...] use the Service to build or contribute to a competing IP geolocation, threat-intelligence, or lookup product, or to systematically reconstruct our underlying threat lists or GeoIP data through repeated queries, use geolocation, VPN/Tor/datacenter, or risk-scoring output as the sole automated basis for a decision that produces legal or similarly significant effects for an individual [...] without a meaningful human review step, use the Service to discriminate against, single out, or take adverse action against individuals on the basis of a protected characteristic that can be inferred or approximated from location data, [...] We grant you a non-exclusive, non-transferable license to call the API and use the dashboard for your own internal business purposes and to serve your own end users. You may not resell, sublicense, or provide standalone access to the Service's underlying data (as opposed to a product or feature you've built using it) without our prior written consent.

## Plan

- Pay: $0
- You get: 500 requests a month
- Enough for: 500 results a month

## Rate limit

- Per second: 0.5 (30 a minute)
- Batch: 100

## Speed

- Answer: in the call

## The call

- You send: ips
- Method: POST
- Path: /v1/lookup

## About the plan

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

## The 41 fields the plan's answer can hold

IP address, found, country, region, region code, city, postal code, latitude, longitude, continent, timezone, EU member, ASN, ASN organization, currency code, currency name, currency symbol, calling code, GDPR, US privacy law, LGPD, cookie consent required, data residency zone, embargoed country, suggested locale, measurement system, first day of week, date format, sunrise, sunset, public holiday today, today's holiday name, next holiday date, next holiday name, age of majority, drinking age, adult content verification required, age jurisdiction note, tax jurisdiction code, tax system, tax rate

## Watch-IP's plans (8)

- [Watch-IP, free, POST /v1/lookup](https://datacircle.dev/ip-geolocation-apis/watch-ip/free-post-v1-lookup/llms.txt): $0.00 per 1,000, 88% complete
- [Watch-IP, $9 monthly, Starter, POST /v1/lookup](https://datacircle.dev/ip-geolocation-apis/watch-ip/9-monthly-starter-post-v1-lookup/llms.txt): $0.18 per 1,000, 100% complete
- [Watch-IP, $29 monthly, Growth, POST /v1/lookup](https://datacircle.dev/ip-geolocation-apis/watch-ip/29-monthly-growth-post-v1-lookup/llms.txt): $0.097 per 1,000, 100% complete
- [Watch-IP, $79 monthly, Scale, POST /v1/lookup](https://datacircle.dev/ip-geolocation-apis/watch-ip/79-monthly-scale-post-v1-lookup/llms.txt): $0.079 per 1,000, 100% complete
- [Watch-IP, $97.20 yearly, Starter, POST /v1/lookup](https://datacircle.dev/ip-geolocation-apis/watch-ip/97-20-yearly-starter-post-v1-lookup/llms.txt): $0.162 per 1,000, 100% complete
- [Watch-IP, $313.20 yearly, Growth, POST /v1/lookup](https://datacircle.dev/ip-geolocation-apis/watch-ip/313-20-yearly-growth-post-v1-lookup/llms.txt): $0.087 per 1,000, 100% complete
- [Watch-IP, $853.20 yearly, Scale, POST /v1/lookup](https://datacircle.dev/ip-geolocation-apis/watch-ip/853-20-yearly-scale-post-v1-lookup/llms.txt): $0.071 per 1,000, 100% complete
- [Watch-IP, contact us, Enterprise, POST /v1/lookup](https://datacircle.dev/ip-geolocation-apis/watch-ip/contact-us-enterprise-post-v1-lookup/llms.txt): 100% complete

## Watch-IP's calls for this API (2)

- `POST /v1/lookup`: [Watch-IP, free, POST /v1/lookup](https://datacircle.dev/ip-geolocation-apis/watch-ip/free-post-v1-lookup/llms.txt)
- `GET /v1/lookup/{ip}`: [Watch-IP, free, GET /v1/lookup/{ip}](https://datacircle.dev/ip-geolocation-apis/watch-ip/free-get-v1-lookup-ip/llms.txt)

## Watch-IP's APIs (3)

- [Watch-IP Email verification API pricing, 8 plans, POST /v1/email/batch](https://datacircle.dev/validate-email-apis/watch-ip/free-post-v1-email-batch/llms.txt)
- [Watch-IP Email verification API pricing, 8 plans, POST /v1/email/validate](https://datacircle.dev/validate-email-apis/watch-ip/free-post-v1-email-validate/llms.txt)
- [Watch-IP Email verification API pricing, 8 plans, POST /v1/email/jobs](https://datacircle.dev/validate-email-apis/watch-ip/free-post-v1-email-jobs/llms.txt)
- [Watch-IP IP company lookup API pricing, 8 plans, POST /v1/lookup](https://datacircle.dev/ip-company-lookup-apis/watch-ip/free-post-v1-lookup/llms.txt)
- [Watch-IP IP company lookup API pricing, 8 plans, GET /v1/lookup/{ip}](https://datacircle.dev/ip-company-lookup-apis/watch-ip/free-get-v1-lookup-ip/llms.txt)
- [Watch-IP IP geolocation API pricing, 8 plans, POST /v1/lookup](https://datacircle.dev/ip-geolocation-apis/watch-ip/free-post-v1-lookup/llms.txt)

## Watch-IP: IP geolocation API alternatives

[Watch-IP alternatives: other IP geolocation API providers by price](https://datacircle.dev/watch-ip-alternatives.txt)

We list Watch-IP's cheapest paid plan first. Next we list other providers' plans closest to Watch-IP in price per 1,000 IP addresses.

- [Watch-IP, $853.20 yearly, Scale, POST /v1/lookup](https://datacircle.dev/ip-geolocation-apis/watch-ip/853-20-yearly-scale-post-v1-lookup/llms.txt): $0.071 per 1,000, 100% complete
- [WhoisXML API, $1,290 yearly](https://datacircle.dev/ip-geolocation-apis/whoisxml-api/1290-yearly/llms.txt): $0.067 per 1,000, 88% complete
- [ipify, $699 pack, One-time purchase: 10,000,000 Credits, GET /api/v2/country](https://datacircle.dev/ip-geolocation-apis/ipify/699-pack-one-time-purchase-10000000-credits-get-api-v2-country/llms.txt): $0.07 per 1,000, 63% complete, 1 day
- [Abstract API, $429 yearly, Starter, 6,000,000 requests / year](https://datacircle.dev/ip-geolocation-apis/abstract-api/429-yearly-starter-6000000-requests-year/llms.txt): $0.071 per 1,000, 88% complete, 1 day
- [IPnova, $149 monthly](https://datacircle.dev/ip-geolocation-apis/ipnova/149-monthly/llms.txt): $0.074 per 1,000, 63% complete, 1 month (VPN, Tor exit node, datacenter, risk level, risk score: 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 2026-11-11.

- https://api.watch-ip.com/openapi.json?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-geolocation-api-pricing
- https://watch-ip.com?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-geolocation-api-pricing
- https://watch-ip.com/docs/errors?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-geolocation-api-pricing
- https://watch-ip.com/docs/reference/bulk-lookup?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-geolocation-api-pricing
- https://watch-ip.com/legal/terms?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-geolocation-api-pricing
- https://watch-ip.com/pricing?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-geolocation-api-pricing
- https://watch-ip.com/products/bulk-ip-lookup?utm_source=datacircle.dev&utm_medium=referral&utm_campaign=ip-geolocation-api-pricing