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

Adyen
Authorize.net
CardCorp
CoinPayments
CoinPays Payment Gateway
MasterCard Payment Gateway
PaymentVista
Accept credit card payments globally with instant payouts. No KYB, instant approval, built for high-risk merchants. Complete financial freedom.

Which is more popular?
Website, pricing, platforms and company facts side by side.
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ZIP
ZIP Code API
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|---|---|---|
| Website | zip-codes.com | rampex.io |
| Pricing | — | |
| Company | Startup from the United States · 2026 | — |
| Listed in |
In their own words, as submitted to SaaSHub.

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...
No description of Rampex.io yet.
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Share your experience with using ZIP Code API and Rampex.io. For example, how are they different and which one is better?
When comparing ZIP Code API and Rampex.io, you can also consider the following products.

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One integration allows businesses to accept 250 payment methods, from wherever people pay
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Free Zip Code API - Free Postal Code Validation | Zipcodestack
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Payment gateway enables internet merchants to accept online payments via credit card and e-check.
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The most affordable postal code API. 240+ countries, sub-5 ms responses. Simple, elegant, transparent.
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Connect your merchant checkout to global card networks securely with CardCorp's payment gateway, and access major payment methods.
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