Build in comprehensive postal address, name, email, and phone cleansing quickly and easily to e-Commerce or retail sites to prevent fraud, lost shipments and returned mail. Return comprehensive location, property, and business information to power BI and analytics. Unleash your creativity by combining the output of several APIs with your own data, to generate custom mashups, maps, shapes, and firmographics that empower new products.
Single Record & Batch Processing
Melissa Web APIs support single record lookups, ideal for web forms and call center applications, as well as batch processing for database cleanup.
Affordable Development & Scalable Pricing
Purchase and spend Melissa Credits to get started immediately, and progress to Melissa tiered transactions as your business scales by calling a helpful Melissa representative.
Flexible Web APIs
Modern interfaces available; REST, JSON, and XML for easy integration into your applications.
Location Based Services
Global Address Web API
Verifies and standardizes U.S. and international addresses in over 200 countries and 46 territories with Postal Authority certified coding and premise level Geocoding.Learn More
Global IP Web API
Return a geolocation of an input IP address with latitude and longitude, proxy info, city, region and country.Learn More
Property Web API (US/CAN)
Return comprehensive property and mortgage info for over 140 million U.S. properties based on supplied Assessor Parcel Number or input address.Learn More
Business & Identification Services
Personator Web API (USA/CAN)
USPS CASS/DPV certified address checking, name parsing and genderizing, phone and email verification are easily performed with API.
Global Email Web API
Verify email mailboxes, syntax, and domains in real-time to confirm they are deliverable. Takes an input email address and returns a status of deliverability to the box level, as well as returns domain information.Learn More
Global Business Web API
Return detailed firmographic data on 25+ million U.S. companies including contact title, address, phone and email by supplying an input Business name, Stock Ticker or Business AddressLearn More
Global Name Web API
Verify, standardize and parse person and business names while identifying suspicious or vulgar names by sending in a full name.Learn More
Global Phone Web API
Verify phone as active, output Caller ID info, as well identifies line type, and returns geographic details, dominant language and carrier for over 200 countries.Learn More
Resources for Developers
Open Source Software
Download Listware Desktop, our scalable, open source data cleansing platform. It’s free to use and modify.Free Download
Melissa’s full suite of on-premise APIs for data verification and enrichment are a great choice if you have extra-sensitive information, need greater speed or have strict compliance requirements.Check Out On-Premise APIs
Join Melissa’s community of data quality enthusiasts and IT professionals. Share thought leadership, receive product discounts and earn referral fees.Learn More