Melissa Global Address Verification vs PostalUp

Melissa Global Address Verification checks and corrects billing and shipping addresses at entry or in batches, covering more than 250 countries and territories. It standardizes results for mailing labels according to local country standards, returns parsed address components, and can append latitude and longitude coordinates. Addresses can also be transliterated to or from the native language of the input country. The service is available through public cloud or on-premise deployment; for on-premise use, its library and data files sit on the customer’s own servers. Listed integrations include Microsoft SSIS, Dynamics CRM, Excel, Pentaho PDI, Talend, and Salesforce. Melissa says its public cloud is hosted in a secure, private environment, undergoes SOC 2 audits, and stores no PII data. Its address page lists HIPAA/HiTrust and SOC 2 certification, plus CCPA and GDPR compliance. The pricing page labels plans CASS and DPV Certified and lists 90 day free trials with subscriptions, as well as unlimited technical support. The free GAV plan includes 250 records per month. GAV Sub 1K costs $40 a month for 1,000 records.

PostalUp provides ZIP code databases and an address validation API for U.S. address data. The API supports standardization, verification, geocoding, and bulk processing; PostalUp says its address API uses USPS data refreshed monthly. Submitted addresses are processed in real time and are not permanently stored except as needed to provide the service or as permitted by the Privacy Policy. Developers can use API documentation, code examples, a playground, webhooks, and a Postman collection, with examples or options for JavaScript, Python, PHP, Ruby, cURL, Go, and Java. An OpenAPI specification is also available. Database downloads vary by product and include CSV, JSON, Parquet, GeoJSON, and Shapefile formats; listed data sources include USPS, Census, OMB, HUD, and TIGER. Use cases include e-commerce, real estate, logistics, marketing, insurance, and healthcare. The free API plan includes 1,000 requests and basic validation. Paid API plans start at $29 a month; separate database plans are annual, starting at $19 a year for ZIP Code Database Basic. Internal commercial use is included with downloads, but redistribution to customers requires a redistribution license.