PostalDataPI
Smarty
Melissa Data Quality
QuickBase
Asana
Teamgantt
Basecamp
Wrike
Teamwork
Smartsheet
Redmine
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.
Quickbase provides a no-code operational agility platform that enables organizations to improve operations through real-time insights and automation across complex processes and disparate systems. Our goal is to help companies achieve operational agilityโto be more responsive to customers, more engaging to employees and as adaptable as possible to whatโs next. Quickbase helps nearly 6,000 customers, including over 80 percent of the Fortune 50. Visit www.quickbase.com to learn more.
PostalDataPI
QuickBaseSmarty - Smarty provides address validation, autocomplete, geocoding and reverse geocoding services covering addresses in over 240+ countries.
Asana - Asana project management is an effort to re-imagine how we work together, through modern productivity software. Fast and versatile, Asana helps individuals and groups get more done.
Melissa Data Quality - Melissa helps companies to harness Big Data, legacy data, and people data (names, addresses, phone numbers, and emails).
Teamgantt - Project Management Software Company