ipapi VS PostalDataPI

Compare ipapi VS PostalDataPI and see what are their differences

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ipapi

Web analytics with IP address lookup and location API

PostalDataPI

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

Landing page //
2022-06-20

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.

ipapi

Website: ipapi.co
Pricing URL: Official ipapi Pricing
Release Date: -

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PostalDataPI

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

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ipapi features and specs

Comprehensive Data
ipapi offers a wide range of data points such as geographic location, time zone, currency, and security-related information, which can be useful for various applications.
Real-time Updates
The API provides real-time updates, ensuring that the information obtained is current and accurate.
Easy Integration
The API is designed to be developer-friendly with a simple and straightforward integration process, supported by extensive documentation.
Scalability
ipapi is built to handle a high volume of requests, making it suitable for businesses of all sizes.
Security Features
Provides security-related data such as whether the IP address is a proxy, crawler, or threat, helping to improve the security of your application.

Possible disadvantages of ipapi

Cost
Advanced features and higher usage plans can be costly, especially for small businesses or independent developers.
Data Accuracy
While generally reliable, the accuracy of geolocation data can sometimes be off, especially for mobile and ISP-managed IP addresses.
Rate Limiting
Free and lower-tiered plans come with rate limits, which can be restrictive for high-volume requirements.
Dependency on Third-Party Service
Relying on an external service means you're dependent on their uptime and reliability, which could impact your applications if their service goes down.
Privacy Concerns
Using IP geolocation services might raise privacy concerns among users who are particular about their data, as it involves tracking and storing IP addresses.

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 ipapi

Overall verdict

IPapi.co is generally considered a good service for businesses and developers who need reliable IP geolocation data. With its comprehensive set of features, scalable pricing plans, and ease of use, it suits the needs of many users wishing to integrate location services into their applications.

Why this product is good

ipapi.co is a popular IP address lookup service that offers real-time geolocation and IP data via a simple to use API. It is favored for its accuracy, speed, ease of integration, and affordability. The service provides detailed information such as location, currency, timezone, and ASN data, making it suitable for various applications.

Recommended for

Developers, businesses, and organizations seeking to enhance their applications with IP geolocation services. It's especially beneficial for projects involving fraud prevention, targeted content delivery, marketing analysis, and user experience customization.

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

ipapi videos

+ Add

How to use the Ipapi API to find information about IP addresses

PostalDataPI videos

+ Add

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

Category Popularity

0-100% (relative to ipapi and PostalDataPI)

ipapi

PostalDataPI

IP Data

100 100%

IP Data

0% 0

Address Verification API

0 0%

Address Verification API

100% 100

Geolocation

100 100%

Geolocation

0% 0

Geolocation API

89 89%

Geolocation API

11% 11

User comments

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

Social recommendations and mentions

Based on our record, ipapi seems to be more popular. It has been mentiond 21 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.

ipapi mentions (21)

Building a CMS-Level Firewall: Why Application Context Matters
// API 1: ip-api.com (free, no key needed, 45 req/min) $response = $http->get("http://ip-api.com/json/{$ip}?fields=proxy,hosting"); If (!empty($data['proxy']) || !empty($data['hosting'])) { return true; // VPN/Proxy detected } // API 2: ipinfo.io (fallback) $response = $http->get("https://ipinfo.io/{$ip}/json"); // Check 'org' field for hosting/vpn/proxy keywords // API 3: ipapi.co (fallback) $response =... - Source: dev.to / 7 months ago
20 Free Api For Your Next Project
IPapi - Service that provides you an info about an IP address. - Source: dev.to / about 2 years ago
A list of SaaS, PaaS and IaaS offerings that have free tiers of interest to devops and infradev
Ipapi - IP Address Location API by Kloudend, Inc - A reliable geolocation API built on AWS, trusted by Fortune 500. The free tier offers 30k lookups/month (1k/day) without signup. - Source: dev.to / over 2 years ago
Lookout! VPN Brute Force Attempts from 109.206.242.48
Yeah still confused as to where you are getting https://www.criminalip.io/en and https://ipapi.co/ from iplocation.net (which I use all the time to also get GEO-IP location). Source: about 3 years ago
Lookout! VPN Brute Force Attempts from 109.206.242.48
I would suggest reaching out to this company https://www.criminalip.io/en as well as this company. https://ipapi.co/. Source: about 3 years ago