
Ensighten
OpenSSL
Let's Encrypt
Authy
Spring Security
Sqreen
AWS WAF
AdLuge
ZIP Code API
Smarty
Zipcodestack
PostalDataPI
Geoco.io
Melissa Data Quality
Loqate
usZIPCodes.org
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.
pct_inside overlap percentage for spatial queries
Ensighten
ZIP Code APIEnsighten is recommended for large enterprises and organizations that require advanced tag management and data privacy compliance solutions. It is particularly beneficial for businesses in highly regulated industries such as finance, healthcare, and e-commerce, where data security and compliance are critical.
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OpenSSL - OpenSSL is a free and open source software cryptography library that implements both the Secure Sockets Layer (SSL) and the Transport Layer Security (TLS) protocols, which are primarily used to provide secure communications between web browsers and โฆ
Smarty - Smarty provides address validation, autocomplete, geocoding and reverse geocoding services covering addresses in over 240+ countries.
Let's Encrypt - Letโsย Encrypt is a free, automated, and open certificate authority brought to you by the Internet Security Research Group (ISRG).
Zipcodestack - Free Zip Code API - Free Postal Code Validation | Zipcodestack
Authy - Best rated Two-Factor Authentication smartphone app for consumers, simplest 2fa Rest API for developers and a strong authentication platform for the enterprise.
PostalDataPI - The most affordable postal code API. 240+ countries, sub-5 ms responses. Simple, elegant, transparent.