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Copy.ai
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Smarty
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usZIPCodes.org
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

Which is more popular?
Based on our record, Frase.io seems to be more popular. It has been mentioned 1 time since March 2021.
Website, pricing, platforms and company facts side by side.
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ZIP
ZIP Code API
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| Website | frase.io | zip-codes.com |
| Pricing | — | |
| Company | — | Startup from the United States · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.

No description of Frase.io yet.
API for US ZIP, ZIP+4, and Canadian postal code data. One unified endpoint set covers North America — no separate APIs by country or data type. What it does Address validation and standardization — production-grade parser with ZIP+4 append, refreshed monthly Radius search — centroid haversine and...
What each product offers, as listed by its team.

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An editorial look at what each product does well and who it suits.

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External articles and on-site reviews we used to compare the two products.

The tool offers keyword suggestions and other SEO features, making it a comprehensive solution for SEO-focused writing. HyperWrite AI's standout feature is its focus on SEO, making it ideal for increasing your online...
For Diverse Writing Styles and SEO: If your primary goal is creating long and short form of content in a few clicks, with different tone of voices and a strong SEO focus, consider Addlly.AI. Its next-generation AI...
RaniIQ is a copywriting tool and AI SEO software combined under one dashboard. It advises you on what to include in your articles and titles, allowing you to generate properly optimized content in half the time. For...
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Recommendations tracked on public social media and blogs since March 2021.

6. Copy.ai Copy.ai is an AI writing tool that is specifically designed for copywriters. Copy.ai can help you create high-converting copy for ads, landing pages, and email campaigns. Copy.ai is a great tool for anyone who wants to... Source: over 3 years ago
Tracking ZIP Code API since May 2026.
When comparing Frase.io and ZIP Code API, you can also consider the following products.

Use Surfer to generate content plans for any domain in a couple of clicks. Write high-quality and SEO-friendly content to win high positions in Google. Sign up now!
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The Future of Writing Meet Jasper, your AI sidekick who creates amazing content fast!
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Free Zip Code API - Free Postal Code Validation | Zipcodestack
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If you’ve ever been stuck for words or experienced writer’s block when it comes to coming up with copy, you know how frustrating it is.
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The most affordable postal code API. 240+ countries, sub-5 ms responses. Simple, elegant, transparent.
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