Instant email address verification to filter legit addresses
Lob is the only automated direct mail platform that transforms your direct mail into intelligent mail that is scalable, personalized, and measurable.
MORE is an award-winning email verification API. It provides a simple, fast and secure way to verify email addresses in real time.
Use MORE in sign-up forms, CRM and marketing platforms whenever you need to verify an email address with a high degree of accuracy.
Free and open source REST API that provides a simple yet effective way to validate and format a phone number.
Postman Echo is service you can use to test your REST clients and make sample API calls. It provides endpoints for GET, POST, PUT, various auth mechanisms and o
Content validator against profanity & obscenity
WebScaper Toolbox, Free IP/DNS/Domain/Whois/Email Validator API
Address Autocomplete | Use our Autocomplete API to suggest valid addresses as users type in realtime. Uses a simple HTTP endpoint.
Extract USPS addresses from any text with our easy-to-use API. Simple HTTP endpoint and SDKs. Try free now.
Validate and append data for any US postal address
Documentation, code and integration guides for the vatlayer API - free, instant EU VAT number validation, price calculation and VAT rates JSON API.