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ZIP Code API VS liteLLM

Compare ZIP Code API VS liteLLM and see what are their differences

ZIP Code API logo ZIP Code API

REST API for US ZIP, ZIP+4, and Canadian postal codes. Single unified endpoint covers address validation and standardization, radius search (centroid haversine and true spatial polygon intersection), point-to-point distance, autocomplete/typeah

liteLLM logo liteLLM

One library to standardize all LLM APIs
  • ZIP Code API Landing page
    Landing page //
    2026-05-21

API for US ZIP, ZIP+4, and Canadian postal code data. One unified endpoint set covers North America โ€” no separate APIs by country or data type.

What it does

  • Address validation and standardization โ€” production-grade parser with ZIP+4 append, refreshed monthly
  • Radius search โ€” centroid haversine and true spatial polygon intersection. Returns ZIPs/FSAs within range, with per-result pct_inside overlap percentage for spatial queries
  • Unified lookup endpoint โ€” accepts US ZIP, ZIP+4, Canadian FSA, full Canadian postal codes, or latitude/longitude inputs
  • Autocomplete/typeahead โ€” cities, counties, metros, states, FSAs, ZIPs
  • Point-to-point distance โ€” between any two postal points
  • Census ACS demographics โ€” 2011โ€“2024, 542 fields per ZIP across income, education, housing, social, and economic profiles
  • Boundary lookups โ€” Census tracts, congressional districts, state legislative areas, school districts โ€” with computed intersection percentages per ZIP

What makes it different

  • Licensed commercial data โ€” not commodity or scraped sources
  • Canadian postal coverage โ€” most peers in this space are US-only
  • True spatial radius โ€” not just centroid haversine
  • 14 years of historical ACS depth via API โ€” unusual outside of raw Census downloads
  • One endpoint for all of North America โ€” no country-detection or input-routing logic to maintain on the client side

Pricing

  • Free โ€” 2,500 lookups/day, no credit card required, no expiry
  • Developer โ€” $49/mo, 100K credits, 300/min
  • Professional โ€” $149/mo, 350K credits, 300/min
  • Business โ€” $499/mo, 1.5M credits, 600/min
  • Credit packs โ€” one-time, from 25K ($19) up to 2M ($799)

Resources

  • liteLLM Landing page
    Landing page //
    2023-09-05

ZIP Code API features and specs

  • Comprehensive ZIP Code Data
    The ZIP Code API from zip-codes.com provides extensive data including ZIP code details, city information, state data, and geographic coordinates, making it a thorough resource for location-based lookups.
  • Multiple Lookup Options
    The API supports various types of lookups including ZIP code to city/state, city/state to ZIP code, distance calculations between ZIP codes, and radius searches, offering flexible querying capabilities.
  • Easy Integration
    The API uses standard REST-based HTTP requests and returns data in commonly used formats like JSON and XML, making it straightforward to integrate into most applications and programming languages.
  • Distance and Radius Calculations
    The API includes built-in functionality for calculating distances between ZIP codes and finding ZIP codes within a specified radius, which is valuable for store locators, shipping estimates, and proximity-based features.
  • Well-Documented Endpoints
    The API provides clear documentation for its various endpoints and parameters, helping developers understand available features and implement them correctly without extensive trial and error.

liteLLM features and specs

  • Ease of Use
    liteLLM is designed to simplify the integration of large language models, making it easier for developers to incorporate advanced AI capabilities into their applications without requiring deep expertise in machine learning.
  • Open Source
    As an open-source project, liteLLM allows developers to contribute to and modify the source code according to their needs, promoting transparency and community-driven development.
  • Flexibility
    The library provides a flexible interface that can be adapted to a wide range of use cases, from natural language processing tasks to chatbot development, catering to different project requirements.
  • Integration Capabilities
    liteLLM offers seamless integration with popular Python libraries and tools, facilitating interoperability within existing software ecosystems.

Possible disadvantages of liteLLM

  • Limited Documentation
    The documentation for liteLLM may not be as comprehensive as other established libraries, potentially making it challenging for newcomers to get started or fully utilize its features.
  • Community Support
    Being a newer project, liteLLM might have a smaller community compared to more established libraries, which could affect the availability of support and community-contributed resources.
  • Potential Stability Issues
    As with many open-source projects in their early stages, there might be potential stability and maintenance challenges, with possible bugs or updates that need addressing as the project matures.

Analysis of ZIP Code API

Overall verdict

  • ZIP Code API from zip-codes.com is a solid, reliable choice for developers and businesses needing accurate US and Canadian postal code data, offering a straightforward RESTful interface with regularly updated databases.

Why this product is good

  • Provides accurate and frequently updated ZIP code, city, state, and geographic data
  • Offers a simple RESTful API that is easy to integrate into web and mobile applications
  • Supports features like ZIP code lookup, radius search, and distance calculations
  • Includes both US ZIP codes and Canadian postal codes for broader coverage
  • Backed by an established data provider with a long track record in postal data

Recommended for

  • Developers building address validation or autofill features
  • E-commerce platforms needing shipping and location-based calculations
  • Businesses performing geographic or radius-based store locators
  • Applications requiring reliable US and Canadian postal data
  • Marketing and logistics teams that need regional or demographic targeting

Category Popularity

0-100% (relative to ZIP Code API and liteLLM)
Zip Lookup
100 100%
0% 0
AI
0 0%
100% 100
APIs
30 30%
70% 70
Developer Tools
12 12%
88% 88

User comments

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What are some alternatives?

When comparing ZIP Code API and liteLLM, you can also consider the following products

Smarty - Smarty provides address validation, autocomplete, geocoding and reverse geocoding services covering addresses in over 240+ countries.

OpenRouter - A router for LLMs and other AI models

Zipcodestack - Free Zip Code API - Free Postal Code Validation | Zipcodestack

Eden AI - Regrouping the best AI APIs for 10mn integration in your code

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

APIPark - โœจ#1 Open Source AI Gateway & API Developer Portal