
PostalDataPI
Smarty
Melissa Data Quality
Revcontent
Infolinks
Outbrain
AdSense
Zemanta
Media.net
VigLink
SkimLinks
PostalDataPI is a global postal code validation and enrichment API covering 240+ countries and territories. One API, one key, one flat rate โ $0.000028 per query with no tiers or subscriptions.
What you get back: Up to 18 metadata fields per postal code โ city, state/region, coordinates, timezone, three levels of administrative hierarchy, elevation, and more. Sub-5ms cached responses.
Works everywhere: US ZIP codes, UK postcodes, German PLZ, Japanese postal codes, Canadian FSAs, and 230+ more. Format normalization handles case, spacing, and hyphen variations automatically.
Get started in 60 seconds: 1,000 free queries on signup, no credit card required. SDKs for Python and Node.js. MCP server for AI agents (Claude, Cursor, etc.).
Built for developers: REST API, consistent JSON responses across all countries, OpenAPI spec, llms.txt for AI agent discovery.
PostalDataPI
RevcontentRevcontent is recommended for publishers who have substantial website traffic and are looking to integrate native ads seamlessly into their content. It is also suitable for advertisers aiming to reach a broad audience through native ad formats and those who value detailed targeting options in their advertising strategies.
Smarty - Smarty provides address validation, autocomplete, geocoding and reverse geocoding services covering addresses in over 240+ countries.
Infolinks - Discover what Infolinks smart ads can do for you
Melissa Data Quality - Melissa helps companies to harness Big Data, legacy data, and people data (names, addresses, phone numbers, and emails).
Outbrain - Outbrain is the world's leading performance-driven discovery and native advertising platform. We help advertisers get discovered on leading publishers websites.