
Firecrawl
exa.ai
SerpApi
Perplexity.ai
SearchApi.io
Search1API
ScrapingBee
Autonomous agent designed for comprehensive online research
Smarty
Zipcodestack
PostalDataPI
Geoco.io
Melissa Data Quality
Loqate
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, tavily seems to be more popular. It has been mentioned 17 times 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 | tavily.com | zip-codes.com |
| Pricing | — | |
| Company | — | Startup from the United States · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.

No description of tavily 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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Recommended for
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Recommendations tracked on public social media and blogs since March 2021.

Real-world note: For production, integrate with SerpAPI, Brave Search API, or Tavily. The structure stays the same. - Source: dev.to / 4 months ago
Search provider: Skip for now — or select a provider if you have a key. Tavily has a free tier at tavily.com. - Source: dev.to / 6 months ago
Search Engine: Tavily API for optimized research-grade web results. - Source: dev.to / 7 months ago
Tracking ZIP Code API since May 2026.
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Free Zip Code API - Free Postal Code Validation | Zipcodestack
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Access real-time results from Google and 100+ search engines with a simple API. No proxies, CAPTCHAs, or parsing required.
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The most affordable postal code API. 240+ countries, sub-5 ms responses. Simple, elegant, transparent.
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