Select Your Country
Language List
Account Hub
I Want To
Build a List
Create a targeted list of prospects for your next campaign.
Enhance a List
Add emails, phones, geographic and demographic info for better target marketing.
Get Started
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.
As low as $0.045 per Record!
Learn MoreGlobal IP Web API
Return a geolocation of an input IP address with latitude and longitude, proxy info, city, region and country.
As low as $0.006 per Record!
Learn MoreProperty 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.
As low as $0.024 per Record!
Learn MoreBusiness & 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.
As low as $0.018 per Record!
Learn MoreGlobal 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.
As low as $0.006 per Record!
Learn MoreGlobal 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 Address
As low as $0.045 per Record!
Learn MoreGlobal Name Web API
Verify, standardize and parse person and business names while identifying suspicious or vulgar names by sending in a full name.
As low as $0.003 per Record!
Learn MoreGlobal 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.
As low as $0.03 per Record!
Learn MoreResources for Developers
Open Source Software
Download Listware Desktop, our scalable, open source data cleansing platform. It’s free to use and modify.
Free DownloadOn-Premise APIs
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 APIsMVP Program
Join Melissa’s community of data quality enthusiasts and IT professionals. Share thought leadership, receive product discounts and earn referral fees.
Learn More