IP-API.com VS PostalDataPI

Compare IP-API.com VS PostalDataPI and see what are their differences

BusinessXray

Automated 60-second forensic business auditing pipeline powered by OpenAI Nano AI. Built for consultants and analysts. featured

Contents:

» Base Details
» Videos
» Reviews
» Alternatives

IP-API.com

Free IP Geolocation API - lookup any IP address

PostalDataPI

The most affordable postal code API. 240+ countries, sub-5 ms responses. Simple, elegant, transparent.

Landing page //
2019-11-26

A simple to integrate Geolocation API that provides information about your users, either directly from a browser or device, or from any of your servers.

Provides data such as City, Region, Postal code, Country, Continent, Coordinates, Timezone, Currency, Organization, ISP, AS, if they are using a mobile network, or an anonymous proxy/VPN.

Works with IPv4, IPv6 or hostnames. Supports batch requests with up to 100 queries per HTTP request.

The free version requires no sign up or keys, and it's limited to 45 HTTP requests per minute from an IP address. Non-commercial use only.

The pro service includes more features such as SLA for 99.9% of monthly uptime, a dashboard with usage statistics, up to 10 API keys (customizable with restrictions), and more.

Landing page //
2026-04-08

PostalDataPI is a global postal code validation and enrichment API covering 240+ countries and territories. One API, one key, one flat rate — $0.000028 per query with no tiers or subscriptions.

What you get back: Up to 18 metadata fields per postal code — city, state/region, coordinates, timezone, three levels of administrative hierarchy, elevation, and more. Sub-5ms cached responses.

Works everywhere: US ZIP codes, UK postcodes, German PLZ, Japanese postal codes, Canadian FSAs, and 230+ more. Format normalization handles case, spacing, and hyphen variations automatically.

Get started in 60 seconds: 1,000 free queries on signup, no credit card required. SDKs for Python and Node.js. MCP server for AI agents (Claude, Cursor, etc.).

Built for developers: REST API, consistent JSON responses across all countries, OpenAPI spec, llms.txt for AI agent discovery.

IP-API.com

Website: ip-api.com
Pricing URL: Official IP-API.com Pricing
$ Details: freemium €15.0 / Monthly (Unlimited queries, SLA, Commercial Use)
Platforms: REST API
Release Date: 2012 January

Edit details

PostalDataPI

Website: postaldatapi.com
Pricing URL: Official PostalDataPI Pricing
$ Details: -
Platforms: -
Release Date: 2026 March
Startup details
Country: United States
State: ID
City: Eagle
Founder(s): Thom Ives
Employees: 1 - 9

Edit details

IP-API.com features and specs

Comprehensive Data
IP-API.com provides extensive information such as country, region, city, latitude, longitude, ISP, and more, which can be useful for various applications like geolocation, analytics, and security.
Ease of Use
The API is straightforward to use, with a simple HTTP GET request format that returns data in popular formats like JSON, XML, and CSV.
High Accuracy
IP-API.com is known for its high accuracy in identifying geographic locations based on IP addresses, which is critical for applications requiring precise geolocation.
Free Tier
The service offers a free tier with a generous limit of up to 45 requests per minute, making it accessible for small projects and testing purposes.
Scalable
IP-API.com provides commercial plans that offer higher request limits and additional features, allowing users to scale their usage as needed.
No API Key Required for Free Tier
Users can access the free tier without needing an API key, which simplifies the setup process and reduces initial friction for new users.

Possible disadvantages of IP-API.com

Rate Limits
The free tier is limited to 45 requests per minute, which might not be sufficient for high-volume applications.
Data Privacy
Storing and processing IP data can raise privacy concerns, especially in regions with strict data protection laws like GDPR in the EU.
Dependence on Third-Party Service
Relying on an external API means your application is dependent on their uptime and performance. Any downtime or issues with IP-API.com can impact your application.
Limited to IP Geolocation
The service is highly specialized for IP geolocation and does not provide broader functionalities that might be offered by more comprehensive data service providers.
No Batch Processing in Free Tier
Batch processing of multiple IP addresses in a single request is not available in the free tier, which can make handling large datasets more cumbersome.
Paid Plans Required for Advanced Features
To access higher rate limits and additional features, users must subscribe to paid plans, which can be a limitation for budget-conscious projects.

PostalDataPI features and specs

Specialized Postal Data
PostalDataPI focuses specifically on postal and address-related data, providing dedicated endpoints for ZIP code lookups, address validation, and geographic postal information, making it a niche solution for mailing and logistics needs.
Simple API Integration
The API appears to offer straightforward RESTful endpoints that are relatively easy to integrate into existing applications, requiring minimal setup and configuration for developers.
Useful for Address Validation
The service can help businesses validate and standardize mailing addresses, reducing undeliverable mail, saving postage costs, and improving data quality in customer databases.
Geographic Data Enrichment
PostalDataPI can enrich address data with additional geographic information such as coordinates, county, and timezone details associated with postal codes, which is valuable for analytics and location-based services.
Lightweight and Focused
As a specialized micro-API, it avoids the bloat of larger platforms, offering a focused toolset that does one thing well — handling postal and ZIP code data without unnecessary complexity.

Analysis of IP-API.com

Overall verdict

IP-API.com is considered a good choice for those looking for a dependable, efficient, and well-documented geolocation and IP information service. Its combination of accurate data, ease of use, and flexible pricing makes it suitable for a variety of applications.

Why this product is good

IP-API.com offers a reliable and fast API service for geolocation and IP information. It is widely used because of its straightforward and easy-to-use interface, providing accurate data such as location, country, region, city, zip code, latitude, longitude, timezone, ISP, and more. The service supports both free and paid plans, with the paid tier offering higher request limits and priority support. Additionally, the documentation is well-maintained, making it easy for developers to integrate the API into their applications.

Recommended for

Developers looking for a quick and efficient geolocation API integration.
Businesses that need reliable IP data services for fraud prevention.
Organizations seeking geographic analytics to enhance user engagement.
Websites or applications that require IP-based personalization features.

Analysis of PostalDataPI

Overall verdict

I don't have verified, up-to-date information specifically about PostalDataPI (postaldatapi.com), including details on its accuracy, pricing, uptime, or customer reviews. I can't confirm whether it's a good product without more direct data or firsthand testing, so I'd recommend evaluating it yourself using the criteria below before committing.

Why this product is good

Unable to verify specific claims about data accuracy, coverage, or update frequency for this service
No confirmed information on pricing tiers, rate limits, or API reliability (SLA/uptime)
No verified user reviews, testimonials, or third-party comparisons available
Company background, support quality, and documentation quality are unconfirmed
If considering this service, check for: free trial/sandbox access, transparent pricing, data source citations, response time benchmarks, and independent reviews on sites like G2 or Trustpilot

Recommended for

Not able to make a specific recommendation without verified data
Best approach: developers needing postal/address validation APIs should compare this against established alternatives (e.g., SmartyStreets, Lob, Google Maps Geocoding API, USPS Web Tools) based on documented accuracy and pricing
Suitable evaluation candidates: teams willing to test the API directly with sample data before integrating into production systems

IP-API.com videos

No IP-API.com videos yet. You could help us improve this page by suggesting one.

Add video

PostalDataPI videos

+ Add

PostalDataPI Now Returns 18 Fields Per Postal Code — for 240+ Countries

Category Popularity

0-100% (relative to IP-API.com and PostalDataPI)

PostalDataPI

IP Data

100 100%

IP Data

0% 0

Address Verification API

0 0%

Address Verification API

100% 100

IP Geolocation

100 100%

IP Geolocation

0% 0

Geolocation API

0 0%

Geolocation API

100% 100

User comments

Share your experience with using IP-API.com and PostalDataPI. For example, how are they different and which one is better?

Social recommendations and mentions

Based on our record, IP-API.com seems to be more popular. It has been mentiond 34 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

IP-API.com mentions (34)

Hurl vs Postman: Git-Friendly API Testing With Proxy-Aware Egress (2026)
Free public geo APIs do not love datacenter traffic. My first instinct was to use ip-api.com — it’s the go-to for “what country is this IP” lookups and has a generous free tier. Hooked it up, ran the direct profile, got a clean response. Then I ran it through the Bright Data proxies I had (these) and got a HTTP 402. Turns out ip-api.com’s free tier detects any datacenter egress and refuses to serve it. The proxy... - Source: dev.to / about 1 month ago
I Built a Threat Intelligence Tool That Maps Malicious IPs in Real Time
The original version used http://ip-api.com — plain HTTP. On a cloud server, that traffic is unencrypted and could be intercepted and spoofed. I switched to https://ipinfo.io which supports HTTPS on the free tier. - Source: dev.to / 4 months ago
MongoDB equivalent to FOR UPDATE SKIP LOCKED
In this example, I'll process messages based on their originating IP address. Multiple threads will enrich them with location data fetched from the public API at https://ip-api.com/. - Source: dev.to / 7 months ago
A list of SaaS, PaaS and IaaS offerings that have free tiers of interest to devops and infradev
Ip-api — IP Geolocation API, Free for non-commercial use, no API key required, limited to 45 req/minute from the same IP address for the free plan. - Source: dev.to / over 2 years ago
Using Whoer IP Checker in 2023
The Language may be different: You can check up the [Set language based on IP], and make the system automatically set up the browser language according to the IP that you set up. Mismatch of DNS or system time: We recommend you to replace the proxy IP and start the operation. Or you can enter the site https://ip-api.com for verification. Source: over 2 years ago